momentum review

A 1 kg ball rolling 4 m/s runs into another 2 kg ball which is not moving. How much total momentum does the balls have before the collision

• 4

• 6

• 12

• 0

A boy is standing on a skateboard. Before he throws the ball, the skateboard is not moving. After he throws the ball the skateboard will ...

• remain still.

• move forward slower than the ball.

• move backward faster than the ball.

• move backwards slower than the ball.

The box on the left runs into the box on the right and they stick together. The resulting velocity will be..

• 4 m/s

• more than 4 m/s

• less then 4 m/s

The two blocks shown in the picture are about to collide and stick together. What is the momentum of this system?

• 10

• 6

• 18

• 3

The two blocks shown in the picture are about to collide and stick together. Which direction will they go after the collision?

• To the left

• To the right

• They will both stop in the middle

The two blocks shown in the picture are about to collide and stick together. How fast will they go after the collision?

• More than 4 m/s

• Less than 4 m/s

• 4 m/s

The two boxes shown are about to collide. The box on the left will come to a stop. The box on the right will bounce backwards. The 5 kg box will have a change in momentum of ...

• 12 kg m/s

• 10 kg m/s

• -10 kg m/s

• 16 kg m/s

The definition of momentum is

• Inertia (Mass) in Motion

• The size of an object

• The velocity of an object

• A comparison between two objects

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

Definition of impulse:

• The product of time net force that causes Change in momentum

• The product of mass and velocity

• The ability to do work

• the rate of increase of speed or the rate of change of velocity