Momentum Test Study

A freight car of mass 6,000 kg moves along a frictionless level railroad track with a constant speed of 12 m/s. What is the momentum of the freight car?

• . 500 kg.m/s

• 7,200 kg.m/s

• 50,000 kg.m/s

• 72,000 kg.m/s

Tags

NGSS.HS-PS2-2

When a ball is hit by a bat, it experiences a force of 3,000 N for 0.003 seconds. What is the impulse experienced by the ball?

• 9 N.s

• 9,000 N.s

• 1,000 N.s

• 1,000,000 N.s

Tags

NGSS.HS-PS2-1

A car moves forward with an initial momentum of 320 kg.m/s when it receives an impulse of 160 N.s as the driver presses the gas pedal. What is the final momentum of the car?

• 0 kg.m/s

• 160 kg.m/s

• -160 kg.m/s

• 480 kg.m/s

Tags

NGSS.HS-PS2-2

1. Mass of cannon is 300 kg and it recoils with a velocity of 5m/s to the left. What is the momentum of cannon ball after it is fired?

• 1500 kg.m/s to the right

• 1500 kg.m/s to the left

• 60 kg.m/s to the right

• 60 kg.m/s to the left

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Two skateboarders stand motionless across from one another until skateboarder A (whose mass is 40 kg) pushes skateboarder B (whose mass is 60 kg). After the push, skateboarder B moves to the right at 2 m/s. What is the velocity of skateboarder A?

• . 3 m/s to the left

• .2 m/s to the left

• .1 m/s to the left

• . 3 m/s to the right

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

A 36-kg skateboarder runs at a constant velocity of 5 m/s and hops onto a stationary 9 kg skateboard. What is the velocity of the skateboarder on the skateboard after he hops on?

• 20 m/s

• 5 m/s

• 6 m/s

• 4 m/s

Tags

NGSS.HS-PS2-2

The momentum change of an object is equal to

• force acting on the object

• mass times acceleration of the object

• inertia of the object

• impulse of the object

Tags

NGSS.HS-PS2-2

Impulse is equal to

• "force " X "duration time of the impact"

• "mass" X " acceleration"

• "mass" X "velocity"

• None of the above

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

which of the following causes a change in momentum?

• a decrease in velocity

• an increase in velocity

• all of the above

Tags

NGSS.HS-PS2-2

Which of the 0.5kg spheres in the image experiences the greater impulse?

• Black

• White

• Same

• Not Enough Info

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2