Momentum, Impulse, and Collisions

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

Tags

NGSS.HS-PS2-2

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

Tags

NGSS.HS-PS2-2

The units for Impulse are

• N/s

• N·s

• N

• m/s

A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s.

Calculate the impulse on the ball.

• 1 N·s

• 6 N·s

• 66 N·s

• None of these

Tags

NGSS.HS-PS2-1

The purpose of crumble zones on a car is to

• decrease time of impact.
• increase force of impact.
• increase the time of impact.
• decrease the impulse during impact.

Tags

NGSS.HS-PS2-3

The difference between a car hitting a wall vs. a car hitting a hay stack is

• the Impulse on the car hitting the wall is greater
• the change in momentum of the car hitting the wall is greater
• the force on the car hitting the hay stack is greater
• the collision time of the car hitting the hay stack is greater

Tags

NGSS.HS-PS2-2

The impulse-momentum theorem states that

• the impulse on an object is equal to the change in momentum it causes 
• the force on a moving object is equal to the magnitude of the impulse.
• the impulse on an object is greater than the change in momentum it causes 
• the impulse on an object is less than the change in momentum it causes

Tags

NGSS.HS-PS2-2

A constant force of 4.5 N acts on a 7.2-kg object for 10.0 s. What is the change in the object's momentum?

• 45 kg m/s

• 72 kg m/s

• 32.4 kg m/s

• 0.45 kg m/s

Tags

NGSS.HS-PS2-1

can a bullet have the same momentum a truck?

• yes
• no

Tags

NGSS.HS-PS2-2

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

• size and shape

• mass and speed

• mass and veloctiy

• mass and energy

Tags

NGSS.HS-PS2-2