Momentum Review

The momentum of an object is the sum of its mass and its velocity.

• True

• False

When two objects collide, their momentum after the collision is explained by ______.

• Newton’s first law of motion

• Newton’s second law of motion

• Newton’s third law of motion

• the conservation of momentum

A real car moving at 10 km/h has more momentum than a toy car moving at the same rate because ______.

• its mass is greater

• its mass is less

• it moves faster

• of friction

If an object with a mass of 12 kilograms is moving at 10 meters per second, what is its momentum?

• 120 kg*m/s

• 120 kg*m*s

• 1.2 kg*m/s

• 1.2 kg*m*s

What must occur for momentum to be transferred?

• Interaction between multiple masses.

• Interaction between a moving mass and a stationary mass.

• Multiple masses must combine to form one mass.

• Multiple masses must be moving in opposite directions.

What is the symbol for momentum?

• p

• m

• M

• mo

What is the SI unit for momentum?

• g m/s

• kg m/s

• m/s

• kg/s

Which of the following statements is not correct concerning momentum?

• Momentum is a vector quantity.

• An object moving at a constant speed has momentum.

• If an object's velocity changes, then its momentum will also change.

• Momentum is never conserved.

According to the Law of Conservation of Momentum, when two objects collide:

• both objects lose momentum.

• both objects gain momentum

• momentum is neither lost nor gained.

• momentum is always lost or gainer.

Which of the following objects would have the most momentum?

• A 10 kg ball rolling down the hallway at 2 m/s.

• A 5 kg ball rolling down the hallway at 5 m/s.

• A 100 kg ball at rest in the corner of the hallway.

• A 10 kg ball rolling down the hallway at 1 m/s.