Momentum

Front

Which of the following would be hardest to stop IF they are moving at the same speed? Options: car, fire engine, frisbee, stroller

Back

fire engine

Front

Which moving object will most likely have the greatest momentum? Options: volleyball hit by a 4th grader, volleyball hit by an olympic volleyball player, volleyball hit by a senior adult, volleyball hit by a basketball coach

Back

volleyball hit by an olympic volleyball player

Front

Which formula is used to calculate momentum? Options: momentum = mass X acceleration, momentum = weight X velocity, momentum = weight X acceleration, momentum = mass X velocity

Back

momentum = mass X velocity

Front

In which situation does the law of conservation of momentum apply?

Back

in the absence of outside forces

Front

The total momentum of any group of objects remains the same unless outside forces act on the objects.

Back

True

Front

If outside forces such as friction are ignored, when 2 objects of the same mass collide and do not stick together, the objects multiply velocities.

Back

False

Front

The less momentum an object has, the easier it is to stop.

Back

True

Front

Momentum, like velocity, is described by both a direction and a force.

Back

True

Front

Momentum of a 1000 kg vehicle traveling at 25 m/s

Back

25000 kg*m/s

Front

Momentum is described using a strength and ___________________. Options: speed, direction, velocity, force

Back

direction