Momentum, Impulse, and Collisions Practice

An object having a p_i of 30kg m/s has ended with a p_f of 40 kg m/s. What impulse caused this?

• 2kg m/s

• 10kg m/s

• 70kg m/s

• 5kg m/s

If the change of momentum of an object is 50kg m/s, we can say the impulse is equal to:

• 0 kg m/s

• 25 kg m/s

• 50 kg m/s

• 100 kg m/s

What is an inelastic collision?

• When two objects collide, becoming stuck together and internal kinetic energy is lost (but not really lost, it transfers to different forms of energy)

• When two objects collide, becoming stuck together and internal kinetic energy is lost

• When two objects don't collide, becoming stuck together and internal kinetic energy is lost (but not really lost, it transfers to different forms of energy)

What two variables effect momentum?

• mass

• weight

• height

• Velocity

An Elephant is running at a velocity of 14 m/s. He has a mass of 6,300 kg. What is the elephants momentum? Do not write units.

What is the equation for momementum?

Collisions where objects BOUNCE apart.

• inelastic collisions

• elastic collisions

• explosions

• none of these

Momentum before = Momentum after

according to the Law of Conservation of __________________________.

• Momentum

• Energy

• Force

• Acceleration

Collision where objects collide, and stick together.

• inelastic collision

• elastic collision

• explosion

• none of these

For every action, there is an equal and opposite reaction.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• none of these