Momentum

Which of the following has the greatest momentum?

• a scurrying cockroach

• a parked semi-truck

• more information is needed

Tags

NGSS.HS-PS2-2

Which of the following has more momentum? 

• a moving SUV
• a moving semi-truck
• more information is needed

Tags

NGSS.HS-PS2-2

Which of the following is NOT a unit of momentum?

• kg*m/s

• N*s

• kg*mph

• kg*m/s²

Tags

NGSS.HS-PS2-2

If a net force is acting on an object, 

• its velocity must be constant
• its velocity must be changing
• its mass must be changing
• its acceleration = 0 

Tags

NGSS.HS-PS2-1

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

In an elastic collision, ______ is conserved.

• Momentum only

• Kinetic Energy only

• Both momentum and energy

Tags

NGSS.HS-PS2-2

In a perfectly inelastic collision, ______ is conserved. 

• Momentum only
• Kinetic Energy only
• Both momentum and kinetic energy

Tags

NGSS.HS-PS2-2

Which of the following collisions is not perfectly elastic nor perfectly inelastic?

• a football tackle where both players fall wrapped together
• a cue ball hitting a billiards ball
• a flower pot breaking over someone's head
• an arrow staying in the apple after impact

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A person on a stationary skateboard throws a bowling ball with a velocity of 5.0 m/s. What is a possible speed of the person after the throw? 

• 0 m/s
• 1.5 m/s
• 5.0  m/s
• 7.5 m/s

Tags

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-PS2-2

NGSS.HS-PS2-1