Unit 5 Review Quiz

What is the momentum of an object at rest?

• greater than zero

• less than zero

• undefined
• zero

Tags

NGSS.HS-PS2-2

Which set of variables have the greatest momentum?

• m=200 kg

  v=20 m/s

• m=1000 kg

  v=60 m/s

• m=200kg

  v=70 m/s

• m=3000 kg

  v=10 m/s

Tags

NGSS.HS-PS2-2

An airbag or padded surface can reduce injury to passengers during car accidents. Why do these safety features work?

• Increase force of impact

• Increase the mass of the passengers

• Increase the velocity of the passengers

• Increase the time of impact

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

A student hits a 10 kg stationary ball with a force that lasts for 0.1 seconds. If the final velocity is 20 m/s, how much force was applied to the ball?

• 2000 N
• 3000 N
• 500 N
• 1000 N

Tags

NGSS.HS-PS2-1

A 120 kg linebacker tackles a 110 kg receiver. What is true about the force and acceleration on both?

• Equal Force on both players

  Equal acceleration

• Equal Force on both players

  More Acceleration on the Receiver

• Equal Force on the both players

  More Acceleration on the Linebacker

• More Force on the receiver

  More Acceleration on the Receiver

Tags

NGSS.HS-PS2-1

A bat has a momentum of 30 kg m/s and strikes a stationary ball. After the collision, the bat has a momentum of 10 kg m/s and the ball has a momentum of 20 kg m/s. Which choice describes the change in momentum?

• The change is equal and opposite

• The change is the same

• The change is unequal

• There is no change

Tags

NGSS.HS-PS2-2

When two objects collide and stick together, the velocity _______

Tags

NGSS.HS-PS2-2