LAWS OF MOTION
2 MARK QUESTIONS
1. What is force?
Force is a push or pull acting on a body which can change its state of
rest or motion or its shape.
2. State any two effects of force.
It can change the state of rest or motion of a body.
It can change the shape or size of a body.
3. What is inertia?
Inertia is the property of a body to resist any change in its state of rest or
motion.
4. What are the types of inertia?
Inertia of rest
Inertia of motion
Inertia of direction
5. What is linear momentum?
Linear momentum is the product of mass and velocity of a body.
p=mv
6. Is momentum a scalar or vector?
Momentum is a vector quantity. It has both magnitude and direction.
7. What is the SI unit of momentum?
The SI unit of momentum is kg m/s.
8. What is friction?
Friction is the force that opposes the motion of a body when it moves
over another surface.
2 MARK QUESTIONS
1. What is force?
Force is a push or pull acting on a body which can change its state of
rest or motion or its shape.
2. State any two effects of force.
It can change the state of rest or motion of a body.
It can change the shape or size of a body.
3. What is inertia?
Inertia is the property of a body to resist any change in its state of rest or
motion.
4. What are the types of inertia?
Inertia of rest
Inertia of motion
Inertia of direction
5. What is linear momentum?
Linear momentum is the product of mass and velocity of a body.
p=mv
6. Is momentum a scalar or vector?
Momentum is a vector quantity. It has both magnitude and direction.
7. What is the SI unit of momentum?
The SI unit of momentum is kg m/s.
8. What is friction?
Friction is the force that opposes the motion of a body when it moves
over another surface.
