Conservation of Momentum

Momentum Practice

Think carefully about each question!

Multiple Choice

Red car's momentum is 10 kg m/s, Blue car's momentum is -10 kg m/s. Which object's momentum is greater?

• Red

• Blue

• Neither

• Not Enough Information

Multiple Choice

A large bus and a small car travel the same speed. Which has a larger momentum?

• Bus

• Car

• Neither

Multiple Choice

Which of the following is true about an object's momentum?

• It will naturally go to 0 kg m/s on its own as it slows down

• It will not change unless it interacts with another object

• It will eventually hit a maximum amount and stop speeding up

Multiple Choice

Which is true about an object's change in momentum during an interaction?

• Both interacting objects have the same amount

• The larger of the interacting objects experiences more

• The smaller of the interacting objects experiences more

Multiple Choice

Which of the following best describes Conservation of Momentum in the bottle rocket lab?

• The bottle's momentum is the same going up and coming down

• The bottle's momentum up equals the water's momentum down

• Momentum is stored as air pressure which is all released

Multiple Choice

Which law says that an object's momentum will not change unless it interacts with another object.

• Newton's 1st

• Newton's 2nd

• Newton's 3rd

• Conservation of Momentum

Multiple Choice

Which law says that when two objects interact they each experience equal but opposite impulse

• Newton's 1st

• Newton's 2nd

• Newton's 3rd

• Conservation of Momentum

Multiple Choice

An object experiences a known change in momentum, what determines the object's change in speed?

• Velocity

• Mass

• Impulse

Multiple Choice

A dart gun is shot at a small toy car at rest. In which case will the car move the fastest after getting hit?

• The dart has a rubber tip and bounces back the way it was launched

• The dart has a suction cup tip and sticks to the car

Multiple Choice

Which has a larger magnitude of momentum, a 20 kg car traveling 1 m/s or a 5 kg car traveling -4 m/s

• The 20 kg car

• The 5 kg car

• Neither

• Need more information

Multiple Choice

You are standing alone on a large ship at rest in the ocean. You begin walking North, what happens to the ship.

• It moves south

• Nothing, it's too big

• Its momentum changes but it doesn't move