I PUC Important Questions
Physics
Chapter – 1: Units and Measurements
Two Marks Questions.
1. What are fundamental units? Give an example.
2. State principle of homogeneity.
3. Give any two applications of dimensional analysis.
4. Give any two limitations of dimensional analysis.
5. Write SI unit and dimensional formula of gravitational constant.
Chapter – 2:
Two Marks Questions.
1. Difference between instantaneous speed and instantaneous velocity.
2. Draw position time graph.
(a) a body moving with constant speed.
(b) a body moving in positive direction with negative acceleration.
3. Define average velocity and uniform velocity.
Five Marks Questions.
1. Derive the expression s = ut + 1/2at2 using velocity – time graph.
2. Derive the expressionv2 − u2 = 2as using velocity-time graph.
Chapter – 3: Motion in a Plane
Two Marks Questions.
1. Define scalar product of two vectors. Give an example.
2. Define centripetal acceleration and explain the symbols used.
Three Marks Questions.
1. Explain triangular law of vector addition.
2. Explain parallelogram law of vector addition.
3. Explain polygon law of vector addition.
4. Obtain expression for time of flight.
5. Obtain expression for horizontal range.
Important Questions 1
, 6. Obtain expression for maximum height.
Five Marks Questions.
1. Define centripetal acceleration and derive expression for centripetal acceleration.
2. Show that trajectory of a projectile is parabola.
3. Derive the expression for magnitude and direction of resultant of two concurrent vectors.
Chapter – 4: Laws of Motion
Two Marks Questions.
1. State and explain Newton’s first law.
2. State and explain Newton’s third law.
3. Define impulse and give its SI unit.
4. Give one example which illustrates law of conservation of linear momentum.
5. Mention common forces in mechanics.
6. What is banking of rod, why it is necessary?
7. Mention two methods of reducing friction.
Three Marks Questions.
1. State Newton second law and derive F = ma
2. Show that impulse = change in momentum.
3. Derive an expression for maximum speed of circular motion of a car on level road.
Five Marks Questions.
1. State and prove law of conservation of linear momentum in the case of two colliding bodies.
2. Derive an expression for maximum velocity of a car on a banked road in circular motion.
Chapter – 5: Work, Energy, Power
Two Marks Questions.
1. What are conservative and non-conservative forces give example.
2. Show that Power p = F.V .
3. What is coefficient of restitution. Give its value for elastic collision.
4. Give two differences between elastic and inelastic collision
Important Questions 2
Physics
Chapter – 1: Units and Measurements
Two Marks Questions.
1. What are fundamental units? Give an example.
2. State principle of homogeneity.
3. Give any two applications of dimensional analysis.
4. Give any two limitations of dimensional analysis.
5. Write SI unit and dimensional formula of gravitational constant.
Chapter – 2:
Two Marks Questions.
1. Difference between instantaneous speed and instantaneous velocity.
2. Draw position time graph.
(a) a body moving with constant speed.
(b) a body moving in positive direction with negative acceleration.
3. Define average velocity and uniform velocity.
Five Marks Questions.
1. Derive the expression s = ut + 1/2at2 using velocity – time graph.
2. Derive the expressionv2 − u2 = 2as using velocity-time graph.
Chapter – 3: Motion in a Plane
Two Marks Questions.
1. Define scalar product of two vectors. Give an example.
2. Define centripetal acceleration and explain the symbols used.
Three Marks Questions.
1. Explain triangular law of vector addition.
2. Explain parallelogram law of vector addition.
3. Explain polygon law of vector addition.
4. Obtain expression for time of flight.
5. Obtain expression for horizontal range.
Important Questions 1
, 6. Obtain expression for maximum height.
Five Marks Questions.
1. Define centripetal acceleration and derive expression for centripetal acceleration.
2. Show that trajectory of a projectile is parabola.
3. Derive the expression for magnitude and direction of resultant of two concurrent vectors.
Chapter – 4: Laws of Motion
Two Marks Questions.
1. State and explain Newton’s first law.
2. State and explain Newton’s third law.
3. Define impulse and give its SI unit.
4. Give one example which illustrates law of conservation of linear momentum.
5. Mention common forces in mechanics.
6. What is banking of rod, why it is necessary?
7. Mention two methods of reducing friction.
Three Marks Questions.
1. State Newton second law and derive F = ma
2. Show that impulse = change in momentum.
3. Derive an expression for maximum speed of circular motion of a car on level road.
Five Marks Questions.
1. State and prove law of conservation of linear momentum in the case of two colliding bodies.
2. Derive an expression for maximum velocity of a car on a banked road in circular motion.
Chapter – 5: Work, Energy, Power
Two Marks Questions.
1. What are conservative and non-conservative forces give example.
2. Show that Power p = F.V .
3. What is coefficient of restitution. Give its value for elastic collision.
4. Give two differences between elastic and inelastic collision
Important Questions 2
