Momentum Review

Momentum Review

Open Ended

If you are tossing water balloons, what is the best way to catch the balloon so it does NOT break?

Multiple Choice

Which has more momentum, a 500kg elephant running at 5 m/s or a 5kg rabbit running at 500 m/s

• Same

Multiple Choice

Can a fly have the same momentum as a train?

• YES

• NO

• Are you crazy?

Multiple Choice

Cart A on the track collides with cart B. A is moving and B is at rest before the collision. After the collision, cart B is moving at less than half the original speed of cart A. The two carts are stuck together.

• Cart A has more mass than cart B

• the lost momentum as absorbed by the track

• the total momentum is half the initial momentum

• Cart B has more mass than Cart A

Multiple Choice

In an explosion, when two carts of unequal mass push off one another, which cart leaves with more momentum?

• the cart with the lighter mass

• the cart with the heavier mass

• it depends on the speed of the cart

• neither cart

Multiple Select

If the momentum of an object changes but its mass remains constant, what else must be happening ot the object

• The objects's velocity is changing

• The object is accelerating

• There is a net force acting on the object.

• Nothing

Multiple Choice

The greatest change in momentum of an object will be produced by:

• a large force acting over a long time

• a small force acting over a long time

• a large force acting over a short time

• a small force acting over a short time

Multiple Choice

The momentum change of an object is equal to the

• force acting on the object

• impulse acting on the object

• velocity change of the object

• object's mass x the force acting on the object

Poll

How do you feel about momentum, impulse, and collisions? (x = not so good, where xxxx I can rock this)

• x

• xx

• xxx

• xxxx

Multiple Choice

When a golf club hits a golf ball, the change of momentum of the ball is _______ the change of momentum of the club, based off of Newton's ___________ Law of Motion

• greater than, 2nd

• less than, 1st

• equal to, 3rd

• greater than, 3rd

Multiple Choice

Seat belts work on the principle that they __________ the stopping time thus ________ the force.

• increase, increase

• increase, decrease

• decrease, decrease

• no impact, increase