AP Inter 1st Year Physics Answer Key 2026 (OUT) Live Updates: Paper Difficulty Level Analysis; Solved Questions
The AP Inter 1st Year Physics Exam 2026 was successfully held today, March 10, 2026. Detailed unofficial answer key for 2 mark and solutions for long answer type questions along with difficulty level analysis, can be checked through this live blog.
AP Inter 1st Year Physics Exam 2026:The Board of Intermediate Education, Andhra Pradesh (BIEAP) has successfully conducted the AP Inter 1st Year Physics Exam today, March 10, 2026, at various examination centres across the state. The Physics paper, which serves as a key subject in Intermediate first-year studies, was held for 85 marks for the first time. There was a 9-mark question in the exam as well. As per the students, the exam was of a 'Moderate to Tough' difficulty level. Through this live blog, students can check the detailed answer key prepared by CollegeDekho Physics subject expert, along with detailed student reviews on the difficulty level of the question paper.
AP Inter 1st Year Physics Answer Key Solutions 2026 (Unofficial)
The unofficial answer key solutions are provided below:Question No. | Question | Answer |
Section A, 1 | Which of the following physical quantities has no dimensions? | (3) Angular Displacement |
Section A, 2 | Why gases cannot support the propagation of a transverse wave? | (2) Gases have no shearing stress (they lack rigidity) |
Section A, 3 | Among the following, the material with the highest elasticity is: | (4) Steel |
Section A, 4 | The value of an acceleration of a freely falling body is ______. | 9.8 m/s2 (on Earth) |
Section A, 5 | Hydraulic lift and hydraulic brakes are based on ______ law. | Pascal's |
Section A, 6 | A monatomic gas molecule has ______ degrees of freedom. | 3 |
Section A, 7 | When are the two vectors said to be equal vectors? | When they have the same magnitude and the same direction. |
Section A, 8 | State Kepler's law of areas. | The line joining a planet and the Sun sweeps out equal areas in equal intervals of time. |
Section A, 9 | Write the mathematical equation of Newton's Second Law. | F=ma (or F=dp/dt) |
Section B, 11 | The states of motion and rest are relative. Explain. | Motion and rest depend on the observer's frame of reference. For example, a person sitting in a moving train is at rest relative to a co-passenger but in motion relative to a person standing on the platform. |
Section B, 12 | If P=2i^+4j^+14k^ and Q=4i^+4j^+10k^, find the magnitude of P+Q. | P+Q=(2+4)i^+(4+4)j^+(14+10)k^=6i^+8j^+24k^ |
Section B, 13 | What is inertia? What gives the measure of inertia? | Inertia is the inherent property of a body to resist any change in its state of rest or uniform motion. Mass is the quantitative measure of inertia. |
Section B, 14 | State the relation between kinetic energy and momentum of a body. | K.E.=p^2/2m, where p is linear momentum and m is mass. |
Section B, 15 | We cannot open or close the door by applying force at the hinges. Why? | Because the lever arm (distance from the axis of rotation) is zero at the hinges. Since Torque=Force×Distance, the torque produced is zero, making rotation impossible. |
Section B, 16 | What are the factors that make 'g' the least at the equator and maximum at the poles? | 1. Earth's Shape: Earth is a flattened spheroid; the equatorial radius is larger than the polar radius (g∝1/R^2). 2. Centrifugal Force: Earth's rotation creates a centrifugal force that opposes gravity most at the equator. |
Section B, 17 | State Hooke's law of elasticity. | Within the elastic limit, stress is directly proportional to strain. (Stress∝Strain). |
Section B, 18 | Give the expression for the excess pressure in a soap bubble in air. | P= 4T/R, where T is surface tension and R is the radius of the bubble. |
Section B, 19 | The roof of buildings is often painted white during summer. Why? | White color is a poor absorber and a good reflector of solar radiation. It keeps the building cooler by reflecting most of the sunlight. |
Section B, 20 | What thermodynamic variables can be defined by (a) Zeroth law (b) First law? | (a) Temperature(b) Internal Energy |
Section B, 21 | Define mean free path. | The average distance traveled by a gas molecule between two successive collisions. |
Section B, 22 | What happens to the energy of a simple harmonic oscillator if its amplitude is doubled? | Energy E∝A^2 (square of amplitude). If amplitude is doubled, the total energy becomes four times its original value (2^2=4). |
Section B, 23 | What are beats? | The periodic rise and fall in the intensity of sound heard when two sound waves of slightly different frequencies interfere with each other. |
Section C, 26 | Mention the methods used to decrease friction. | 1.Polishing:Surfaces become smoother. |
Section C, 27 | Define vector product. Explain the properties of a vector product with two examples. | Definition:The product of two vectors whose result is a vector perpendicular to the plane containing them. |
Section C, 30 | Define Young's modulus, Bulk modulus, and Shear modulus. | Young's (Y):Ratio of longitudinal stress to longitudinal strain. Bulk (B):Ratio of hydraulic stress to volumetric strain. Shear (n):Ratio of shearing stress to shearing strain. |
Section C, 31 | What is atmospheric pressure? How is it determined using a barometer? | Definition:The pressure exerted by the weight of the atmosphere. |
Section C, 32 | In what way is the anomalous behaviour of water advantageous to aquatic animals? | Water has maximum density at 4∘C. In winter, the top layer freezes, but the denser 4∘C water stays at the bottom. The ice acts as an insulator, allowing aquatic life to survive in the liquid water below. |
What's Next After AP Inter 1st year Physics Exam 2026?
The upcoming important exam for the 1st Year MPC and BPC students is Chemistry. The exam is conducted for 85 marks as per the revised exam pattern. Students can check thelist of high-priority chapters and topicsto prirotize the last-minute preparation. You can also checkAP Inter 1st Year Chemistry Blueprint 2026to understand the chapter-wise marks division.AP Inter 1st Year Physics Exam 2026 Quick Facts
Some of the details and facts related to AP Inter 1st Year Physics Exam 2026 can be found below:
Aspect | Details |
Exam Date | March 10, 2026 |
Exam Time | 9 AM to 12 PM |
Sections | Sections A, B, C & D |
Questions and Marking Scheme |
|
Max Marks | 85 Marks |
The Board of Intermediate Education, popularly known as BIE has implemented a new exam pattern for this year, which requires students to concentrate on effective revision methods and their need to understand the test design. Students should dedicate their time to important chapters, essential formulas, and common exam questions instead of studying new subjects that they have not yet begun. The students who prepare effectively at the last minute and study their essential material while maintaining their self-assurance will achieve success in their upcoming AP Inter 1st Year Chemistry Exam 2026.
AP Inter 1st Year Physics Exam 2026 LIVE:
Mar 10, 2026 06:00 PM IST
Live coverage ends
Live coverage of AP Inter 1st Year Physics Exam 2026 has ended!
Mar 10, 2026 01:10 PM IST
Section C, Q 35: Explain the modes of vibrations of an air column in a closed pipe.
Correct Answer:
In a closed pipe (closed at one end), an antinode forms at the open end and a node at the closed end.
1. First Harmonic (Fundamental): L=λ_1/4⇒ f_1=v/4L.
2. Third Harmonic (1st Overtone): L=3λ_3/4⇒f_3=3v/4L=3f1.
3. Fifth Harmonic (2nd Overtone): f_5=5f1.
Ratio of frequencies: 1:3:5 (only odd harmonics).Mar 10, 2026 12:35 PM IST
Section C, Q 24: Explain the terms average velocity and instantaneous velocity. When are they equal?
Correct Answer:
Average Velocity- The ratio of total displacement to the total time interval. V_avg= triangle x/ triangle t.
Instantaneous Velocity- The velocity of an object at a specific point in time. v=lim_Δt→0. Δx/Δt- dx/dt
Equality- They are equal when a body moves with constant (uniform) velocity.Mar 10, 2026 12:25 PM IST
Answer Key Released
The answer key or solved question paper for AP Inter 1st Year Physics Exam 2026 has been released along with the paper analysis!
Mar 10, 2026 12:10 PM IST
Exam Moderate to Tough, Long answer type questions tricky
The difficulty level of the exam was Moderate to Tough. As per the initial reactions, the 2-mark questions were direct, while the long-answer type questions were challenging and tricky.
Mar 10, 2026 12:00 PM IST
AP Inter Physics Exam 2026 Concludes Successfully
The AP Inter 1st Year Physics Exam 2026 has concluded successfully across the state. Initial reactions from students suggest the paper was moderate in difficulty, with a mix of conceptual and numerical questions. Detailed exam analysis and answer key updates will follow shortly.
Mar 10, 2026 11:40 AM IST
Physics Exam to End Shortly
The AP Inter 1st Year Physics examination will conclude shortly. Students are expected to begin exiting examination centres after 12:00 Noon. Live student reactions, expert paper analysis, and expected difficulty level updates will be available soon.
Mar 10, 2026 11:20 AM IST
Medical and Support Facilities Arranged at Centres
Authorities have arranged medical assistance and first-aid facilities atall examination centres to handle emergencies. Officials stated that student safety and smooth conduct of the examination remain a top priority during the Intermediate Public Examinations.
Mar 10, 2026 10:30 AM IST
Physics Exam Underway Smoothly Across Centres
The Physics examination is currently being conducted smoothly across examination centres in the state. Officials have confirmed that all arrangements were made in advance to ensure the exam proceeds without disruption. No malpractice incidents have been reported so far.
Mar 10, 2026 09:40 AM IST
32-Page Answer Booklets Distributed to Students
Invigilators have begun distributing the 32-page answer booklets to students ahead of the AP Inter 1st Year Physics Exam 2026. Candidates are instructed to carefully check the booklet and ensure that all pages are properly printed before starting the examination.
Mar 10, 2026 09:00 AM IST
AP Inter 1st Year Physics Exam Begins
The AP Inter 1st Year Physics examination 2026 has officially commenced across the state. Students will attempt the question paper during the morning session from 9:00 AM to 12:00 Noon. Invigilators have distributed the question papers and answer booklets to the candidates.
Mar 10, 2026 08:30 AM IST
Students Arriving at Exam Centres
Students appearing for the AP Inter 1st Year Physics Exam 2026 have started arriving at their respective examination centres across the state.
Important instructions for students:
• Carry hall ticket without fail
• Bring required stationery items
• Reach exam centre at least 30 minutes before the exam
• Follow instructions given by invigilatorsStudents are advised to remain calm and avoid last-minute panic.
Mar 10, 2026 08:00 AM IST
Quick Physics Formula Revision
Students should revise these key formulas before the exam:
Motion formulas
v = u + at
s = ut + ½at²
v² = u² + 2asEnergy formulas
KE = ½mv²
PE = mghWave formula
v = fλ
Thermodynamics formula
ΔU = Q − W
Remembering these formulas helps solve numerical questions quickly.
Mar 10, 2026 07:30 AM IST
Presentation Tips to Impress Examiners
Students should follow these presentation tips:
• Leave space between answers
• Underline formulas
• Draw diagrams with pencil
• Write final answers clearlyAnswer sheet presentation plays a major role in scoring full marks.
Mar 10, 2026 06:50 AM IST
Secret Tips to Score 60+ in Physics
CollegeDekho Experts' Advice for Scoring High Marks
Physics examiners recommend the following strategies:
• Attempt short questions first to secure easy marks
• Write formulas before solving numerical problems
• Use diagrams wherever required
• Highlight important formulas
• Write answers neatly and clearlyStudents who follow these steps generally score higher marks.
Mar 10, 2026 06:05 AM IST
Important Numerical Problems Students Must Practice
Expected numerical problems:
• Find acceleration using v = u + at
• Calculate displacement using s = ut + ½at²
• Find kinetic energy using ½mv²
• Calculate gravitational force using F = Gm₁m₂ / r²
• Find escape velocity
• Calculate pressure using P = F/A
• Find strain using change in length/original length
• Wave velocity calculations using v = fλ
• Thermodynamics problems using ΔU = Q − W
• Oscillation time period calculations
• Energy conservation problems
• Circular motion problems
• Heat energy calculations
• Gas pressure calculations
• Sound velocity problemsMar 10, 2026 05:05 AM IST
Derive the formula for escape velocity
Key points to write:
• Escape velocity is the minimum velocity required for an object to escape from Earth's gravitational field without returning.
Derivation outline:
• Consider a body projected from Earth's surface
• Kinetic energy must equal gravitational potential energyEnergy equation:
½mv² = GMm / R
Solving for velocity:
v = √(2GM / R)
For Earth:
Escape velocity ≈ 11.2 km/s
Students should highlight the final formula clearly.
Mar 10, 2026 04:05 AM IST
10 Most Important Physics Derivations
Students revising for the Physics exam should focus on these frequently asked derivations, as they often appear in 8-mark questions.
Important derivations include:
• Derivation of equations of motion
• Derivation of work-energy theorem
• Derivation of centripetal acceleration
• Derivation of gravitational potential energy
• Derivation of escape velocity
• Derivation of pressure of an ideal gas
• Derivation of time period of simple pendulum
• Derivation of velocity of sound in air
• Derivation of energy of simple harmonic motion
• Derivation of relation between wave velocity, frequency and wavelengthStudents should practice writing these step-by-step with clear formulas.
Mar 10, 2026 03:25 AM IST
Physics Guess Paper – Numerical Problems
Important numerical problems expected:
• Kinetic energy calculation problems
• Motion equation problems
• Wave velocity problems
• Thermodynamics heat calculationsStudents should follow this method:
Step 1 – Write formula
Step 2 – Substitute values
Step 3 – Write final answer with unit.Mar 10, 2026 03:05 AM IST
Physics Guess Paper – Short Answer Questions
Expected short answer questions include:
• Define escape velocity.
• Define Young’s modulus.
• State Pascal’s law.
• Define surface tension.
• Define angular velocity.Students should write short and precise explanations.
Mar 10, 2026 02:05 AM IST
Physics Guess Paper – Long Answer Questions
Expected long answer questions include:
• Derive equations of motion.
• Prove work energy theorem.
• Derive expression for gravitational potential energy.
• Derive time period of simple pendulum.
• Explain kinetic theory of gases.Students should practice writing these answers with complete derivations.
Mar 10, 2026 01:05 AM IST
Common Mistakes Students Should Avoid
Many students lose marks due to avoidable mistakes.
Common mistakes include:
• Forgetting units in numerical answers
• Skipping steps in derivations
• Writing incomplete formulas
• Not drawing diagrams when requiredImportant advice:
• Always show formula → substitution → final answer.
Mar 10, 2026 12:05 AM IST
How Examiners Evaluate Physics Answer Sheets
Students should follow these tips to score maximum marks:
For 2-mark questions:
• Write clear definition
• Include formula if required
• Answer in 2–3 linesFor 4-mark questions:
• Definition
• Explanation
• Diagram or formulaFor 8-mark questions:
• Write derivation step-by-step
• Explain symbols used
• Highlight final result.Neat presentation improves readability.
Mar 09, 2026 11:00 PM IST
Explain projectile motion
Key points:
• Projectile motion is motion of an object thrown into air.
• Motion occurs in two components.Horizontal motion:
• Velocity remains constant.
Vertical motion:
• Acceleration due to gravity acts downward.
Important result:
Trajectory becomes parabolic path.
Students should draw a trajectory diagram.
Mar 09, 2026 10:45 PM IST
Derive expression for time period of simple pendulum
Steps:
• Consider pendulum displaced from equilibrium position
• Restoring force acts towards mean position
• Motion becomes simple harmonic motionFinal formula:
T = 2π √(L/g)
Where:
L = length of pendulum
g = acceleration due to gravityStudents should draw a neat pendulum diagram.
Mar 09, 2026 10:30 PM IST
Final Exam-Day Tips
Carry hall ticket and required stationery to the exam centre.
Reach the centre at least 30 minutes before the exam.
Read all questions carefully before answering.
Attempt easy questions first to secure quick marks.
Leave 5–10 minutes for revision at the end.
Mar 09, 2026 10:15 PM IST
Derive equations of motion for uniformly accelerated motion
Key derivation steps:
• Initial velocity = u
• Final velocity = v
• Acceleration = a
• Time = tStep 1
Acceleration formula
a = (v − u) / t
Step 2
Rearranging
v = u + at
First equation of motion obtained.
Step 3
Displacement formula
s = ut + ½at²
Step 4
Third equation
v² = u² + 2as
Students must show each step clearly to secure full marks.
Mar 09, 2026 10:00 PM IST
Top 20 Expected Board Questions for Physics Exam
The following questions are highly expected in the AP Inter Physics board exam.
Define significant figures and explain their importance.
Derive the equations of motion for uniformly accelerated motion.
Explain projectile motion with equations.
State Newton’s laws of motion with examples.
Define work and derive work-energy theorem.
Explain conservation of energy with example.
Define moment of inertia and explain rotational motion.
Derive expression for gravitational potential energy.
Define escape velocity and derive its formula.
Explain Pascal’s law and its applications.
Define surface tension and explain its applications.
Explain thermal expansion of solids.
State first law of thermodynamics with explanation.
Explain kinetic theory of gases.
Derive expression for pressure of an ideal gas.
Define simple harmonic motion with examples.
Derive time period of simple pendulum.
Define wavelength and frequency of waves.
Explain wave velocity and relation between v, f and λ.
Explain Doppler effect.
Students should practice writing these answers clearly with diagrams wherever required.
Mar 09, 2026 09:45 PM IST
What is kinetic theory of gases?
Explanation:
• Kinetic theory explains the behavior of gases based on motion of molecules.
• Gas molecules are in continuous random motion.
• Pressure of gas is due to collisions of molecules with container walls.Students should mention assumptions of kinetic theory in descriptive answers.
Mar 09, 2026 09:30 PM IST
Explain Work-Energy Theorem.
Points to include:
• Work-energy theorem states that work done on a body equals the change in kinetic energy.
Derivation outline:
• Work done = Force × displacement
• Substitute force using Newton’s law
• Simplify equationFinal result:
W = KE₂ − KE₁
Students should write each derivation step clearly.
Mar 09, 2026 09:15 PM IST
Important Question from Mechanical Properties of Fluids
Question: State Pascal's Law.
Explanation:
• Pascal’s law states that pressure applied to a confined fluid is transmitted equally in all directions.
• This principle is used in hydraulic machines such as hydraulic lifts and brakes.Key points to write:
• Definition
• Application example
• Pressure formulaMar 09, 2026 09:00 PM IST
Important Numerical from Waves Chapter
Problem:
Find the frequency of a wave whose velocity is 300 m/s and wavelength is 0.6 m.
Solution:
Step 1 – Formula
v = fλ
Step 2 – Rearranging
f = v / λ
Step 3 – Substitute values
f = 300 / 0.6
Final answer:
f = 500 Hz
Students should always include units in the final answer.
Mar 09, 2026 08:45 PM IST
Explain acceleration due to gravity.
Points to include in answer:
• Acceleration due to gravity is the acceleration experienced by a body due to Earth’s gravitational force
• Represented by g
• Near Earth's surface g ≈ 9.8 m/s²Students should also mention:
Formula:
g = GM / R²
Where
G = gravitational constant
M = mass of Earth
R = radius of EarthMar 09, 2026 08:30 PM IST
Important Short Answer Question from Gravitation
Q. Define escape velocity.
Explanation:
• Escape velocity is the minimum velocity required for a body to escape from the gravitational pull of a planet without returning.
• It depends on the mass and radius of the planet.For Earth:
Escape velocity ≈ 11.2 km/s
This question is commonly asked in 2-mark questions.
Mar 09, 2026 08:15 PM IST
Find the angular velocity if a body completes 20 revolutions in 10 seconds.
Solution:
Step 1 – Convert revolutions into radians
1 revolution = 2π radians
20 revolutions = 40π radians
Step 2 – Formula
Angular velocity = Angular displacement / Time
Step 3 – Calculation
ω = 40π / 10
ω = 4π rad/s
Always write the unit rad/s in the final answer.
Mar 09, 2026 08:00 PM IST
Important Concept from Rotational Motion
Students revising Rotational Motion should focus on these key points:
• Rotational motion occurs when a body rotates about a fixed axis
• Angular displacement is measured in radians
• Angular velocity represents the rate of change of angular displacement
• Moment of inertia plays a role similar to mass in linear motionImportant short answer question:
What is angular velocity?
Answer:
• Angular velocity is the rate of change of angular displacement with time.
• Unit: rad/sMar 09, 2026 07:45 PM IST
Quick Formula Revision for Physics Exam
Students should revise these important formulas:
Motion equations:
v = u + at
s = ut + ½at²
v² = u² + 2asEnergy formulas:
KE = ½mv²
PE = mghWave formula:
v = fλ
Memorizing these formulas helps solve numerical problems quickly.
Mar 09, 2026 07:30 PM IST
What is Simple Harmonic Motion (SHM)?
Explanation:
• Simple harmonic motion is a type of oscillatory motion.
• In SHM, the restoring force is directly proportional to displacement.
• The force always acts towards the equilibrium position.Example:
• Motion of a simple pendulum
• Motion of a springThis question is commonly asked in 2-mark and 4-mark sections.
Mar 09, 2026 07:15 PM IST
Tips to Write 8-Mark Answers
Students attempting 8-mark questions should follow this structure:
• Start with definition or introduction
• Write derivation step by step
• Show all mathematical steps clearly
• Draw diagrams wherever needed
• Highlight the final resultPresentation tips:
• Leave space between steps
• Use correct symbols
• Write final formula clearly.This improves readability and scoring.
Mar 09, 2026 07:00 PM IST
How to Write a 4-Mark Answer in Physics
To score full marks in 4-mark questions, students should:
• Start with definition or statement
• Explain the concept in clear steps
• Add diagram if required
• Write formula or exampleTypical structure:
Definition
Explanation
Diagram
Formula or application
Following this format helps examiners easily award marks.
Mar 09, 2026 06:45 PM IST
Derive the equations of motion for uniformly accelerated motion.
Key steps to include:
• Define initial velocity (u)
• Define final velocity (v)
• Define acceleration (a)
• Use velocity-time relationFinal equations obtained:
v = u + at
s = ut + ½at²
v² = u² + 2asStudents must write the complete derivation step-by-step.
Mar 09, 2026 06:30 PM IST
Explain projectile motion.
Key points to include:
• Projectile motion is the motion of an object thrown into air under gravity.
• Motion occurs in two directions: horizontal and vertical.
• Horizontal velocity remains constant.
• Vertical velocity changes due to gravity.Students should draw a projectile path diagram to secure full marks.
Mar 09, 2026 06:15 PM IST
State the first law of thermodynamics.
Explanation:
• The first law of thermodynamics states that energy can neither be created nor destroyed, but only transformed from one form to another.
• Mathematical form:ΔU = Q − W
Where
Q = heat supplied
W = work done
ΔU = change in internal energyThis question often appears in 2-mark or 4-mark sections.
Mar 09, 2026 06:00 PM IST
Important Numerical from Work Energy Chapter
Problem:
Find the kinetic energy of a body of mass 3 kg moving with velocity 4 m/s.
Solution:
Step 1 – Write formula
KE = ½mv²
Step 2 – Substitute values
KE = ½ × 3 × (4²)
Step 3 – Calculate
KE = ½ × 3 × 16
KE = 24 JoulesImportant exam tip:
• Always write formula → substitution → answer with unit.
Mar 09, 2026 05:45 PM IST
Tips to Write 2-Mark Answers
Students attempting 2-mark questions should follow a simple structure:
• Write the definition or law clearly
• Mention important keywords
• Include formula if required
• Keep the answer within 2–3 linesExample question:
Define kinetic energy.
Answer format:
• Kinetic energy is the energy possessed by a body due to its motion.
• Formula: KE = ½mv²Short and precise answers help secure full marks.
Mar 09, 2026 05:30 PM IST
What is acceleration due to gravity?
Explanation:
• Acceleration due to gravity is the acceleration experienced by an object when it falls freely under the influence of Earth's gravitational force.
• It is denoted by g.
• Near the Earth’s surface, the value of g is approximately 9.8 m/s².These types of definition questions are frequently asked in 1-mark or 2-mark sections.
Mar 09, 2026 05:15 PM IST
Key Topics Students Should Revise Now
Students beginning the afternoon revision session should focus on the following chapters:
• Work, Energy and Power
• Thermodynamics
• Oscillations
• Rotational Motion
• Thermal Properties of MatterPreparation strategy:
• Revise formulas first
• Practice at least 1 numerical from each chapter
• Review previously asked derivationsThese chapters often contribute long answer questions and numerical problems in the exam.
Mar 09, 2026 05:00 PM IST
Important Thermodynamics Numerical
Problem:
If 500 J of heat is supplied to a system and 200 J of work is done by the system, find the change in internal energy.
Solution:
ΔU = Q − W
ΔU = 500 − 200
ΔU = 300 J
Mar 09, 2026 04:45 PM IST
Expected Derivation Question
Expected derivation question:
Derive the expression for the time period of a simple pendulum.
Students should remember the steps of derivation and the assumptions involved in simple harmonic motion.
Mar 09, 2026 04:30 PM IST
Short Notes for Quick Revision
Units and Measurements: Focus on SI units, dimensional formula, and significant figures.
Motion Chapters: Revise equations of motion and projectile motion numericals.
Laws of Motion: Understand Newton’s laws and free-body diagrams.
Energy and Work: Practice derivations and conceptual problems.
Gravitation: Revise gravitational force, acceleration due to gravity, and escape velocity.
Mar 09, 2026 04:15 PM IST
Important Problem from Units and Measurements
Problem:
Find the dimensional formula of force.
Solution:
Formula:
Force = Mass × Acceleration
Dimensions of mass = M
Dimensions of acceleration = LT⁻²Therefore,
Force = M × LT⁻²
Dimensional formula of force = MLT⁻²
Students should clearly write each step while deriving dimensional formulas.
Mar 09, 2026 04:00 PM IST
Important Formulas from Oscillations Chapter
Students should revise the key formulas related to simple harmonic motion.
Important formulas include:
Time Period of SHM
T = 2π √(m/k)Angular Frequency
ω = 2π / TVelocity in SHM
v = ω√(A² − x²)Understanding these formulas helps students solve problems related to oscillatory motion.
Mar 09, 2026 03:45 PM IST
Important Concept from Units and Measurements
Students revising the Units and Measurements chapter should focus on the concept of significant figures and dimensional analysis, as questions from these topics appear regularly in board examinations. Dimensional analysis helps verify the correctness of equations and derive relationships between physical quantities. Students should practice identifying dimensions of commonly used physical quantities such as velocity, force, energy, and pressure.
Mar 09, 2026 03:30 PM IST
Important Formulas for Last-Minute Revision
Students should revise the following key formulas:
Velocity: v = u + at
Displacement: s = ut + ½at²
Work: W = F × s
Kinetic Energy: KE = ½mv²
Potential Energy: PE = mgh
Gravitational Force: F = Gm₁m₂ / r²
Remembering these formulas will help students solve numerical problems quickly during the exam.
Mar 09, 2026 03:15 PM IST
Preparation Tips to Score Maximum Marks in Physics
Experts suggest students should focus on clear presentation and step-wise answers while writing the Physics exam. Even if the final answer is incorrect, showing proper steps can help secure partial marks.
Important tips include:
• Write formulas before solving numerical problems
• Draw neat diagrams wherever required
• Highlight final answers clearly
• Use correct units in numerical answersGood presentation plays an important role in scoring high marks.
Mar 09, 2026 03:00 PM IST
Frequently Asked Questions from Work, Energy and Power
The chapter Work, Energy and Power is one of the most important topics in the syllabus and frequently appears in both short-answer and long-answer sections.
Expected questions include:
• Define kinetic energy.
• State work-energy theorem.
• What is potential energy?
• Define power.
• Explain conservation of energy.Students should revise both conceptual explanations and numerical applications from this chapter.
Mar 09, 2026 02:45 PM IST
Important Formula-Based Concepts from Energy Chapter
Students should revise the fundamental formulas related to energy before attempting numerical questions in the exam.
Important formulas include:
Kinetic Energy = ½mv²
Potential Energy = mgh
Work Done = Force × Distance
Understanding these formulas helps students quickly solve numerical questions related to energy transformations and work done by forces.
Mar 09, 2026 02:30 PM IST
Frequently Asked Questions from Gravitation
The Gravitation chapter often contributes questions in the 2-mark and 4-mark sections of the Physics exam.
Expected questions include:
• Define gravitational force.
• What is acceleration due to gravity?
• Define escape velocity.
• What is orbital velocity?
• State Newton’s law of gravitation.Students should also revise the applications of gravitational force in planetary motion.
Mar 09, 2026 02:15 PM IST
Important Questions from Oscillations
Expected questions include:
• Define simple harmonic motion.
• What is time period of oscillation?
• Define amplitude.
• What is angular frequency?
• Explain restoring force in SHM.Oscillations is a high-weightage chapter and often appears in both conceptual and numerical questions.
Mar 09, 2026 02:00 PM IST
Section A Preparation Strategy
Section A in the Physics paper usually contains very short answer questions carrying 1 mark each. These questions are typically direct and can be answered quickly if students revise basic definitions and formulas.
Students should focus on:
• Definitions
• Physical quantities and units
• Short conceptual statements
• Important scientific termsAnswering this section quickly can help students save time for solving longer questions later in the exam.
Mar 09, 2026 01:45 PM IST
Medium Weightage Chapters to Revise Today
After completing the most scoring units, students should revise chapters that carry around 6 marks weightage. These chapters are commonly used to frame short answer questions and conceptual questions in the exam.
Important medium-weightage units include:
• Motion in a Straight Line – 6 Marks
• Motion in a Plane – 6 Marks
• Laws of Motion – 6 Marks
• Gravitation – 6 Marks
• Mechanical Properties of Solids – 6 Marks
• Mechanical Properties of Fluids – 6 Marks
• Kinetic Theory – 6 Marks
• Waves – 6 MarksThese chapters usually contribute several 2-mark and 4-mark questions.
Mar 09, 2026 01:30 PM IST
Exam Preparation Tips from Experts
Experts suggest that students preparing for the Physics exam should focus on conceptual clarity and proper presentation. Writing answers in a structured way helps in scoring better marks.
Important tips include:
• Attempt 1-mark questions first
• Draw neat diagrams wherever required
• Write formulas before solving numericals
• Show all calculation steps clearly
• Leave time for revisionFollowing these strategies can help students maximize their score in the Physics exam.
Mar 09, 2026 01:15 PM IST
Frequently Asked Numerical Problems
Numerical problems are commonly asked from motion, gravitation, and work-energy chapters. Students should practice solving basic problems step-by-step.
Example problem frequently asked in exams:
A body starts from rest and moves with an acceleration of 2 m/s² for 5 seconds. Find its final velocity.
Such problems help students apply motion equations and often appear in 2-mark or 4-mark sections of the paper.
Mar 09, 2026 01:00 PM IST
Important Physics Formulas for Quick Revision
Students appearing for the Physics exam should revise important formulas, as many numerical questions are directly based on these expressions.
Important formulas include:
v = u + at
s = ut + ½at²
v² = u² + 2asWork = Force × Distance
Kinetic Energy = ½mv²
Gravitational Force = Gm₁m₂ / r²
Revising these formulas helps students solve problems faster during the exam.
Mar 09, 2026 12:45 PM IST
Section D Important Questions (8-Marks)
Section D consists of long-answer questions, where students must answer any 2 out of 3 questions. These questions generally involve derivations or detailed explanations.
Important expected questions include:
• Derive equations of motion for uniformly accelerated motion.
• Derive expression for gravitational potential energy.
• Explain rotational motion and moment of inertia.
• Derive expression for work-energy theorem.
• Explain simple harmonic motion with equations.Students should write complete derivations and label diagrams clearly to secure full marks.
Mar 09, 2026 12:30 PM IST
Section C Important Questions (4-Marks)
Section C contains short essay questions, where students usually need to answer any 8 out of 12 questions.
Important expected questions include:
• Explain projectile motion with equations.
• Derive expression for centripetal acceleration.
• Explain work-energy theorem.
• Explain types of equilibrium.
• Derive relation between pressure and depth in liquids.
• Explain thermal expansion of solids.
• Derive expression for velocity of sound in air.
• Explain kinetic theory of gases.Students should present answers with proper steps and diagrams where required.
Mar 09, 2026 12:15 PM IST
Section B Important Questions (2-Marks)
Section B usually contains short answer questions of 2 marks, which test basic conceptual understanding.
Important expected questions include:
• State Newton’s second law of motion.
• Define centripetal force.
• What is escape velocity?
• State Boyle’s law.
• Define Young’s modulus.
• Explain surface tension.
• Define thermal conductivity.
• What is kinetic theory of gases?
• Define amplitude of oscillation.Students should practice writing short explanations in 2–3 sentences for these questions.
Mar 09, 2026 12:00 PM IST
Section A Important Questions (1-Mark)
Section A in the Physics exam contains 1-mark very short answer questions, and a total of 9 questions can be asked from any chapter in the syllabus.
Expected questions include:
• Define significant figures.
• What is dimensional analysis?
• Define work.
• Define kinetic energy.
• What is acceleration due to gravity?
• Define angular momentum.
• What is surface tension?
• Define simple harmonic motion.
• What is wavelength?Students should focus on definitions and short conceptual answers, as these questions require precise and direct responses.
Mar 09, 2026 11:45 AM IST
Start Preparation with High-Weightage Units
Students preparing for the AP Inter 1st Year Physics Exam 2026 should begin revision with the most scoring chapters, as these units carry a higher chance of appearing in short essay and long answer questions. Based on the official blueprint, the following chapters carry the highest weightage in the question paper:
• Work, Energy and Power – 10 Marks
• System of Particles and Rotational Motion – 10 Marks
• Thermal Properties of Matter – 10 Marks
• Thermodynamics – 10 Marks
• Oscillations – 10 MarksStudents who revise these chapters thoroughly can secure a significant portion of the marks in the Physics exam.