Momentum & Impulse Quiz

What are the units for momentum?

• J

• m/s

• kg-m/s

• N

Tags

NGSS.HS-PS2-2

What is the units for kinetic energy?

• J

• m/s

• kg-m/s

• N

What are the units for impulse? Two options

• J

• m/s

• kg-m/s

• N

• N-s

In which of the following is the momentum of the system conserved? Select all that apply.

• Perfectly elastic collision

• Inelastic collision

• Explosions

What information can be determined from a force vs. time graph if we know the mass of the object?

• The change in momentum

• The final velocity

• The potential energy

• Work

A person is rolling on a wagon with their 10 kg backpack with a momentum of 40 kg*m/s. The person throws off the 10 kg backpack. What is the momentum of the system now?

• 30 kg*m/s

• 40 kg*m/s

• 50 kg*m/s

• 60 kg*m/s

Select the type of collision where kinetic energy is conserved.

• Perfectly elastic

• Inelastic collision

• Explosions

• None of the above

What is the momentum of a 4 kg car moving 4 m/s to the left?

(a)  

Two identical cars, traveling at the same speed, crash into a wall. What variable is constant for both situations?

• Change in momentum

• Force

• Time

• All of the above are the same for each situation

Two identical cars, traveling at the same speed, crash into a wall. Since both cars have the same change in momentum, how can the force experienced by the passengers be decreased?

• Decreasing the time of the impact

• Increasing the time of the impact

• Both car accidents will experience the same force.