momentum and energy

What is the formula for calculating momentum?

• m=mv
• p=m/v
• p=v/m
• p=vm

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

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

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

A bus hits a bug and the bug splatters on the windshield, which force is greater?

• The Bus
• The Bug
• They're the same
• Gravity acting on the bus

Newton's third law states that any action will have a(n) _______ and ______ reaction

• Equal and similar
• Equal and opposite
• Equal and different
• Greater and opposite

The units for Impulse are

• N/s
• Ns
• N
• m/s

The purpose of air bags on a car is to

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

A cannon fires a cannonball. Which object experiences more impulse?

• Cannon
• Cannonball
• Neither they both experience the same impulse

Tags

NGSS.HS-PS2-2

A cannon fires a cannonball. Which object experiences more change in velocity?

• Cannon
• Cannonball
• Neither they both experience the same change in velocity