Momentum

Question 1

Momentum of an object:

Answer 1

Is the product of the mass and velocity

Question 2

Collision:

Answer 2

An isolated event in which 2 or more moving bodies exert forces on each other over a relatively short time

Question 3

Newtons 2nd law ( in terms of momentum):

Answer 3

Net force acting on an object is equal to the rate of change of momentum.

Question 4

System:

Answer 4

a group of two or more objects that interact.

Question 5

Internal forces:

Answer 5

The action reaction forces exerted by objects on each other during a collision

Question 6

Isolated system:

Answer 6

When the mass of a system is constant and no net force external force acts on the system, the system is said to be isolated

Question 7

Inelastic collision:

Answer 7

A collision where kinetic energy is not conserved only momentum is conserved.

Question 8

Impulse:

Answer 8

The product of the net force acting on an object and the time which it acts