A-LEVEL Physics: 4.1.17: Momentum (Seneca)

Question 1

Momentum = …

Answer 1

Mass * Velocity

p=mv

Question 2

What is ‘Impulse’?

Answer 2

Impulse is the Change in Momentum of an Object.

Question 3

Impulse is…

Answer 3

Change in Momentum (Δp).

Question 4

Impulse = …

Answer 4

Force * Time

Δp=Ft

Question 5

The Law of Conservation of Momentum:

Answer 5

‘Momentum Cannot be Created Nor Destroyed.’

Question 6

The Sum of Moment Before Collision = …

Answer 6

The Sum of Momentum After Collision

Question 7

Change in Momentum After Collision = …

Answer 7

mv - mu

m=Mass
u=Initial Velocity
v=Final Velocity

Question 8

When a Force Acts on an Object that is Moving, or is Able to Move, what happens?

Answer 8

A Change in Momentum.

Question 9

Force = …
How Can this Connection be Shown?

Answer 9

The Rate of Change of Momentum.

This Can be Shown by Combining 2 Equations:

Acceleration = Change in Velocity / Time Taken

Force = Mass * Acceleration

a = Δv/t
F=ma

Therefore:

F=m(Δv/t)

since p=mv,

F=Δp/t

Force = Change in Momentum / Change in Time