Physics - Fall

If the momentum of an object changes from 40 kg m/s to 80 kg m/s in 5 seconds, what is the change in momentum?

• 120 kg m/s

• 5 kg m/s

• 320 kg m/s

• 40 kg m/s

Tags

P.6C

A 740 kg car traveling 19 m/s comes to a complete stop in 2.0 s. What is the magnitude of the force exerted on the

car during this stop?

• 85 N

• 850 N

• 7030 N

• 9250 N

Tags

P.6C

Most modern vehicles have padded dashboards. This reduces collision injuries by...

• reducing the driver's change in momentum
• increasing the driver's change in momentum
• increasing the force of impact
• increasing the time of impact

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

Both students experience the same ____

• force of impact
• time of impact
• change in momentum
• all of the above

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

NGSS.HS-PS2-3

An egg gets dropped from a height of 0.1 meters and cracks. A second egg gets dropped from the same height but this time it lands on a glass of water and does not break. In terms of impulse.

• 1st egg experienced more impulse

• 2nd egg experienced more impulse

• both experienced the same impulse

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

A  car starts from rest and after  7 seconds it is moving at 42  m/s. What is the car’s acceleration?

• 0.17
• 1.67
• 6
• 7

Tags

NGSS.HS-PS2-1

A shopping cart given an initial velocity of 2.0 m/s undergoes a constant acceleration of 3.0 m/s². What is the magnitude of the cart's displacement after the first 4.0 s of its motion?

• 10.0 m

• 55 m

• 32 m

• 80.0 m

Tags

NGSS.HS-PS2-1

An automobile driver puts on the brakes and decelerates from 30.0 m/s to zero in 10.0 s. What distance does the car travel?

• 150 m

• 196 m

• 336 m

• 392 m

• 421 m

Tags

NGSS.HS-PS2-1

Which graph represents zero acceleration (constant velocity)?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

A cart travels with a constant nonzero acceleration along a straight line. Which graph best represents the relationship between the distance the cart travels and the time of travel?

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