Physics Review - Momentum

The momentum of an object is defined as the object's

• Velocity * time interval

• Force * time interval

• Mass * velocity

• Force * acceleration

• Mass * acceleration

Tags

NGSS.HS-PS2-2

A 2kg chunk of peanut butter moving at 1 m/s collides with and sticks to a 3 kg piece of chocolate that was at rest. The newly created peanut butter cup will have a momentum of

• 0.67 kg m/s

• 6 kg m/s

• 2 kg m/s

• 0 kg m/s

Tags

NGSS.HS-PS2-2

A 1500 kg car moving at 4 m/s collides head on with an approaching 700 kg SmartCar moving at 3 m/s in the opposite direction. If the two cars stick together, what will be their speed?

• 1.77 m/s

• 1 m/s

• 3.68 m/s

• 7 m/s

Tags

NGSS.HS-PS2-2

A loaded freight car has 3 times as much mass as an empty freight car. If the loaded car coasts at 3 m/s and collides and sticks to the empty car at rest, what will be the speed of the cars after the collision?

• 1 m/s

• 2.25 m/s

• 3 m/s

• 4.5 m/s

Tags

NGSS.HS-PS2-2

Which of the following has the largest momentum?

• The science building at the school

• A dog running down the street

• A tightrope walker crossing Niagara Falls

• A pickup truck traveling down the highway

• A Mack truck parked in a parking lot

Tags

NGSS.HS-PS2-2

A 3 kg ball has a momentum of 15 kg *m/s. What is the ball's speed?

• 0.2 m/s

• 3 m/s

• 45 m/s

• 5 m/s

• None of the above

Tags

NGSS.HS-PS2-2

Two corn dogs have the same size and shape, but one is twice as heavy as the other. When they are dropped from a tower, they reach the ground at the same time, but the heavier one has a higher

• acceleration

• momentum

• speed

• all of the above

• none of the above

Tags

NGSS.HS-PS2-1

Mrs. Vierra is moving at 6 m/s and has a momentum of 546 kg*m/s. What is her mass?

• 55.7 kg

• 58.8 kg

• 3276 kg

• 91 kg

• none of your business

Tags

NGSS.HS-PS2-2

If the momentum of an object changed and its mass remains constant,

• it is accelerating or decelerating

• there is a force acting on it

• its velocity is chaning

• all of the above

• none of the above

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Superman and an evil henchmen are at rest in space, when Superman throws the henchman, who has less mass than Superman. Who is moving faster?

• Superman

• They are both at the same speed

• Henchman

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2