Momentum

Question 1

In Perfectly elastic collision:

Answer 1

• momentum is conserved

- kinetic energy is conserved

Question 2

Linear momentum is the product…

Answer 2

of the mass of the object and its velocity.

Question 3

Linear momentum is…

Answer 3

vector quantity.

Question 4

Conservation of momentum:

Answer 4

Within a closed system, the total momentum in any direction is constant.

Question 5

The total momentum of objects before collision=

Answer 5

the total momentum of objects after the collision

Question 6

In a perfectly elastic collision, the relative speed of approch=

Answer 6

the relative speed of separation.

Question 7

In an inelastic collision:

Answer 7

• momentum is conserved

- kinetic energy not conserved(deformation)

Question 8

When deforming objects, work…

Answer 8

is done.

Question 9

Momentum is always…

Answer 9

conserved in all collisions.

Question 10

Newton’s second law of motion(momentum)

Answer 10

The resultant force acting on an object is equal to the rate of change of change of its momentum. The resultant force and the change in momentum are in the same direction.