Quiz 7A

Where did energy come from?

• An explosion in space created energy.

• God created the universe and the energy in it.

• Many hot gases mixed together to create energy.

The roller coaster at the top of the hill is an example of which kind of energy?

• kinetic energy

• potential energy

• thermal energy

This roller coaster moving down the hill is an example of which kind of energy?

• kinetic energy

• potential energy

• thermal energy

A toy truck rolls down a slope. As the truck rolls down the slope, what happens?

• Potential energy changes to kinetic energy and moves the truck. The truck also gains kinetic energy as it rolls.

• Neither kinetic nor potential energy changes as the truck rolls down the slope.

• Potential energy changes to kinetic energy as the truck rolls. The truck also gains potential energy as it rolls.

The book resting on the edge of the table has potential energy because the book could fall. The underlined part of the sentence is the .

• cause

• effect

The ability to do work is force. True or False?

• True

• False

The stored energy in an object is potential energy.

• True

• False

The energy that an object has due to its motion is kinetic energy. True or False?

• True

• False

Mallory pushed a marble down the slope of the driveway. How did that change the marble’s energy?

• The applied force to the marble increases its weight, which increases its kinetic energy.

• The applied force to the marble decreases its motion, which decreases its kinetic energy.

• The applied force to the marble increases its motion, which increases its kinetic energy.

Remi threw a baseball and a small rubber ball with the same applied force at the tower of blocks. Which ball will knock down more blocks?

• The baseball’s weight gives it more kinetic energy to knock down more blocks.

• The rubber ball’s weight gives it more kinetic energy to knock down more blocks.

• The rubber ball’s speed gives it more kinetic energy to knock down more blocks.