Unit 1 Test Review

What is distance over a certain amount of time?

• speed

• velocity

• acceleration

• time

When two objects collide, some of the kinetic energy is transformed into sound energy and heat. True or False?

• True

• False

If the amount of kinetic energy of an object increases, what will happen to the object?

• it will decrease

• it will move slower

• it will stop moving

• it will move faster

Balanced or unbalanced: a runner jumping over a hurdle

• Unbalanced

• Balanced

Balanced or unbalanced: a lamp sitting on a table

• Unbalanced

• Balanced

What is an example of kinetic energy?

• a train rolling down a track

• a ball sitting at the top of the hill

• sitting in a chair

• a car parked on the road

Stored energy is also known as

• kinetic energy

• inertia

• potential energy

• speed

What force will stop a moving skateboard?

• acceleration

• friction

• motion

• inertia

When the batter hits a ball, the force on that ball with the bat causes

• a change in direction

• a change in speed

• a change in force

• a change in energy

Give an example of friction.

• riding a bike

• picking up a ball

• a ball slowing down on carpet

• spinning in a chair