SP1f Newton's Third Law and Momentum

Question 1

Newton’s third law?

Answer 1

for every action there is an equal and opposite reaction.

Question 2

Momentum?

Answer 2

a measure of the tendency of an object to keep moving (the strenght of the movement).

Question 3

What does momentum depend on?

Answer 3

.mass
.velocity

Question 4

What is the total momentum of a system before a collision equal to?

Answer 4

the total momentum of the system after the collision (provided no external force acts on it).

Question 5

What are the two types of collision?

Answer 5

.elastic - both momentum and kinetic energy are conserved, objects do not move off together
.inelastic - only momentum is conserved, objects collide and move off together