Energy and Waves Study Guide

When an object is held in the air, it has what kind of energy?

• Wind

• Gravity

• Motion

• Stored

What type of energy transformation does an oven perform?

• heat to electrical

• electrical to heat

• electrical to sound

• mechanical to heat

What type of energy transformation happens when a tennis player eats a snack and then plays a match?

• mechanical to food

• food to mechanical

• mechanical to chemical

• Chemical to mechanical

What happened in the investigation where we rolled a marble down a ramp to collide with a stationary marble?

• The two marbles collided and stopped rolling.

• The stationary marble didn't move at all, and the rolling marble kept rolling.

• The rolling marble slowly came to a stop after colliding with the other marble; the stationary marble started rolling away.

• The two marbles rolled away and slowly came to a stop.

Sound moves in waves. If you play the same tone over and over, what do the waves do?

• The waves will move in the same pattern over time.

• The waves will move in a different pattern over time.

• The waves will eventually come to a stop.

• The waves will move up and down.

The fourth graders are trying to build a car that does not use fossil fuels or chemical energy to move; what is the BEST option the fourth graders could use to power the car?

• A battery

• Gasoline in the engine

• Their feet

• Solar panels

What type of energy does a wind turbine use?

(a)  

What type of circuit allows energy to flow?

• Closed circuit

• Open circuit

• Battery circuit

• Energy circuit

What is an energy transfer?

• The change of energy from one form to another

• input and output

• Giving away energy

• the movement of energy

What is an energy transformation?

• The change of energy from one form to another

• input and output

• giving away energy

• the movement of energy