First year science students 7 chapter imp questions for physics 🌟🙀

 ✅ Chapter 1: Physical World

Important Questions:

1. What is Physics? Explain its scope and importance.

2. Distinguish between fundamental and derived quantities.

3. Write short notes on any two fundamental forces in nature.

4. What are the limitations of science?

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✅ Chapter 2: Units and Measurements

Important Questions:

1. Define SI units. List the seven base quantities and their SI units.

2. What is dimensional analysis? Give two uses.

3. Convert 1 newton into CGS units using dimensional formula.

4. What do you mean by significant figures? State the rules for determining them.

5. What is the difference between accuracy and precision?

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✅ Chapter 3: Motion in a Straight Line

Important Questions:

1. Derive the three equations of motion using calculus method.

2. Define and distinguish between distance and displacement.

3. A body moves with uniform acceleration. Derive an expression for the distance covered in nth second.

4. A car accelerates uniformly from rest. Find time to cover a certain distance.

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✅ Chapter 4: Motion in a Plane

Important Questions:

1. Define projectile motion and derive the expression for time of flight, maximum height, and range.

2. What is uniform circular motion? Derive the expression for centripetal acceleration.

3. Explain vector addition using the triangle law of vectors.

4. Differentiate between scalar and vector quantities with examples.

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✅ Chapter 5: Laws of Motion

Important Questions:

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

2. What is friction? Write its advantages and disadvantages.

3. Derive the expression for acceleration of a body on a smooth inclined plane.

4. What is impulse? State its unit and practical examples.

5. Explain tension in a string and normal reaction with free body diagrams.

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✅ Chapter 6: Work, Energy, and Power

Important Questions:

1. Define work. Write its SI unit and conditions for positive, negative, and zero work.

2. State and prove the work-energy theorem.

3. Derive an expression for potential and kinetic energy.

4. Explain the law of conservation of mechanical energy in case of a freely falling body.

5. Define power and energy. What is 1 kilowatt-hour?

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✅ Chapter 7: System of Particles and Rotational Motion

Important Questions:

1. Define center of mass. Find it for a two-particle system.

2. What is torque? Write its SI unit and formula.

3. Derive the relation between torque and angular acceleration.

4. What is moment of inertia? State the theorem of perpendicular axes.

5. Differentiate between translational and rotational motion.

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💡 Study Tip:

Focus on understanding concepts more than memorizing.

Practice numer

icals based on formulas.

Solve previous year question papers and MCQs.

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