First year science students 8 chapter imp questions for physics 🌟🙀

 📘 Chapter 1: Physical World

1. What is physics? Write its scope and importance.

2. Explain fundamental forces in nature.

3. Differentiate between classical and modern physics.

4. What is unification in physics?

5. Write short notes on: Gravitational force, Nuclear force.

6. Explain the role of physics in technology and society.

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📘 Chapter 2: Units and Measurements

1. Define SI units. List the 7 fundamental SI units.

2. What is dimensional analysis? State its applications.

3. Convert 1 light year into meters.

4. What are significant figures? Rules for counting them.

5. Derive formula using dimensional method (e.g., time period of pendulum).

6. Explain systematic and random errors.

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📘 Chapter 3: Motion in a Straight Line

1. Differentiate between distance and displacement.

2. Derive equations of motion using calculus or graphical method.

3. Explain uniform and non-uniform motion with examples.

4. What is relative velocity?

5. Draw and explain velocity-time and position-time graphs.

6. Define acceleration. Derive expression for velocity.

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📘 Chapter 4: Motion in a Plane

1. What is projectile motion? Derive its equation.

2. State and prove vector addition laws (triangle/parallelogram law).

3. What is uniform circular motion? Derive centripetal acceleration.

4. Write differences between scalar and vector quantities.

5. What are the conditions for two vectors to be equal?

6. Solve numerical problems on projectile motion.

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📘 Chapter 5: Laws of Motion

1. State and explain Newton’s three laws of motion.

2. Derive the relation: 

3. What is friction? Types of friction and methods to reduce it.

4. Define momentum and state the law of conservation of momentum.

5. What is inertia? Types of inertia.

6. Solve problems on pulleys and inclined planes.

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📘 Chapter 6: Work, Energy and Power

1. Define work, energy and power with SI units.

2. Derive the work-energy theorem.

3. Explain potential energy and kinetic energy with examples.

4. State and prove the law of conservation of energy.

5. Differentiate between elastic and inelastic collisions.

6. Numericals on power and energy.

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📘 Chapter 7: System of Particles and Rotational Motion

1. Define centre of mass. How to find it for a system of particles?

2. Derive torque and angular momentum relation.

3. What is moment of inertia? Write formulae for common shapes.

4. Explain conservation of angular momentum with examples.

5. What is the difference between translational and rotational motion?

6. Define radius of gyration.

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📘 Chapter 8: Gravitation

1. State and explain Newton’s law of gravitation.

2. Derive expression for acceleration due to gravity.

3. What is escape velocity? Derive its expression.

4. Define orbital velocity and derive formula.

5. Explain variation of with height and depth.

6. Write short note on satellite motion.

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📌 Tips for Exam Preparation:

Practice numerical problems daily.

Focus on definitions, derivations, and SI units.

Make sh

ort summary notes or formula sheets for quick revision.

Solve previous year question papers.

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If you need PDF notes, MCQs, or numerical practice for any of these chapters, just let me know.

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