QUIZ REVIEW Momentum & Impulse

A biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum?

• 25 m/s

• 375 m/s

• 25 kg m/s

• 375 kg m/s

A runner has a momentum of 670 kg m/s and is travelling at a velocity of 9 m/s. What is his mass?

• 6030 kg

• 0.0134 kg

• 74.4 kg

• 80 kg

The momentum of an object depends upon the object's ___________&_____________.

• size and shape

• mass and speed

• mass and veloctiy

• mass and energy

A 2 kg cart has a momentum of 16 kg m/s. What is its velocity?

• 8 m/s

• 32 m/s

• 0.125 m/s

• 18 m/s

If two objects have the same mass, then the faster moving object has ____________ momentum.

• more 
• less
• the same

The total momentum before a collision is _________ the total momentum after a collision.

• equal to 
• less than 
• more than
• It depends on the type of collision

When comparing the momentum of two moving objects, which of the following is correct?

• the object with the higher velocity will have less momentum if the masses are equal

• the more massive object will have less momentum if its velocity is greater

• the less massive object will have less momentum if the velocities are the same

• the more massive object will have less momentum if the velocities are the same

A child with a mass of 23 kg rides a bike with a mass of 5.5 kg at a velocity of 4.5 m/s to the south. Compare the momentum of the child with the momentum of the bike.

• Both the child and the bike have the same momentum

• the bike has a greater momentum than the child

• the child has a greater momentum than the bike

• neither the child nor the bike has momentum

In a collision,

• momentum is always conserved

• kinetic energy is always conserved

• neither momentum nor kinetic energy is conserved

• both momentum and kinetic energy are always conserved

Collisions where objects BOUNCE apart.

• inelastic collisions

• elastic collisions

• explosions

• none of these