Momentum and Impulse

Which of the following has the MOST momentum?

• rolling ping-pong ball

• rolling bowling ball

• rolling soccer ball

• rolling basketball

Tags

NGSS.HS-PS2-2

An object has a mass of 5 kg, a displacement of 5 m, and a time of 25 s, what is its momentum?

• 1 kgm/s

• 750 kgm/s

• 25 kgm/s

• 625 kgm/s

A 2 kg cart has a momentum of 10 kg m/s. What is its velocity?

• 22 m/s
• .2 m/s
• 5.0 m/s
• 20 m/s

Tags

NGSS.HS-PS2-2

When two objects collide, what happens to all of the momentum?

• It Increases
• It remains the same
• It vanishes
• It decreases

Tags

NGSS.HS-PS2-2

A car crashes into a barrier with an impulse of 40,000 kg x m/s. The collision took 2 seconds. How much force did the barrier exert?

• 80,000 N

• 60,000 N

• 40,000 N

• 20,000 N

Tags

NGSS.HS-PS2-1

The impulse is ______ the change in momentum

• greater than
• equal to
• less than
• always double

Tags

NGSS.HS-PS2-2

A bug flies into the windshield of a car going the opposite way. Which of the following are true.

• the force of impact is the same for both
• the impulse is the same for both
• the acceleration of the bug is larger than the truck
• A, B, and C are all true

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

The recoil speed of a rifle is much less than the exit velocity of a bullet because...

• the rifle experiences a smaller force
• the rifle experiences a smaller change in momentum
• the rifle has a much greater mass
• the rifle does not obey the laws of physics

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

When a large football player and a small football player run into each other, who exerts more force?

• The heavy one

• The light one

• They are equal

• there is no such thing as force

Tags

NGSS.HS-PS2-1

Rahim observed a collision in lab where the kinetic energy after the collision was equal to the kinetic energy before the collision. This type of collision is

• Inelastic

• Elastic