Momentum and the Conservation of Momentum:

What is the formula for momentum (units and symbol)?

Momentum (kg m/s) = Mass (kg) x velocity (m/s)
P = mv

What is the conservation of momentum?

In a closed system, the total momentum before an event is equal to the total momentum after the event.
Momentum is conserved

What is momentum?

How much motion an object has

What are the types of collision? (5)

Static - one object doesn’t move
Rear-end - one object catches up with the other
Head-on - Both move towards each other
Sticky - Both objects become one when colliding
Explosion - One big object divides into smaller objects

What is an elastic collision?

All energy and momentum is conserved

What is an inelastic collision?

Kinetic energy is not conserved.

What happens in an explosion?

The objects move in opposite directions

Is momentum vector or scalar?

Vector because it has magnitude and direction

Do all objects that move have momentum?

Yes

Do objects that don’t move have momentum?

No

What is the equation for the conservation of momentum?

m1u1 + m2u2 = m1v1 +m2v2

What is ‘u'?

initial velocity

What is ‘v’?

Final velocity

What would happen if the initial momentum is 0?

The final momentum is 0.
m1u1 +m2u2 = m1v1 +m2v2
0 = m1v1 +m2v2
m1v1 = -m2v2

What does it mean when there is a negative velocity?

The object is going in the opposite direction/ backwards.