Physics ACP

Which two quantities can be expressed using the same units?

• momentum and energy
• energy and force
• impulse and force
• impulse and momentum

A 5 N force is applied to a 3 kg ball to change its velocity from 9 m/s to 3 m/s. The impulse on the ball is ______ N s.

• -2.5

• -10

• -18

• -45

Tags

NGSS.HS-PS2-1

A runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass?

• 6030 kg
• 0.0134 kg
• 74.4 kg
• 80 kg

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

How much momentum does a stationary battle ship have if it has a mass of 2,575,000 kg?

• 2,575,000 N
• 2,575,000 kg m/s
• 0 Momentum requires mass and velocity
• none of the above

Tags

NGSS.HS-PS2-2

Which takes more force  to catch, a bowling ball or a ping pong ball?

• bowling ball because it has more momentum
• ping pong ball because it has more momentum
• both require the same amount of force when catching
• bowling ball because it has less momentum

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

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

What type of collision is the following:  Two cars crashing and getting stuck in each other and moving on as one.

• Elastic
• Inelastic
• Explosion
• Rigid

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

What type of collision is the following:  Two astronauts in space pushing off of each other

• Elastic
• Inelastic
• Explosion
• Rigid

Tags

NGSS.HS-PS2-2

What type of collision is the following:  A baseball bat hitting a ball.

• Elastic
• Inelastic
• Explosion
• Rigid

Tags

NGSS.HS-PS2-2

A 60-kg roller skater exerts a 10 N force on a 30-kg roller skater for 0.2 second. What is the magnitude of the impulse applied to the 30-kg roller skater?

• 6.0 N⋅s

• 50 N⋅s

• 12 N⋅s

• 2.0 N⋅s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2