Forms of Energy

David wants to go swimming in his pool, but he decided to wait until the end of the day when the water would be better for swimming. Why would the water be better for swimming after being in the Sun all day?

• It will absorb more sound, making the pool quieter.

• The pool will become fuller.

• The temperature of the water will increase.

• The water in the pool will move around more.

Which of the following images is an example of wind moving an object?

• Electric fan

• Wind generator with blades

• Water wheel

• Girl hitting a ball with a baseball bat

Which of the following is an example of how moving water can be a source of energy?

• Rocks being thrown across a stream of water.

• Sailboats transporting people to islands.

• Plants using water during photosythesis.

• A hydroelectric dam on a river generating electricity.

Andrew went bowling last weekend. Which of the following actions would NOT show a change cause by applying energy to the ball?

• Lifting the bowling ball to put it on a shelf.

• Holding the bowling ball in both hands.

• Rolling the bowling ball across the floor.

• Spinning the bowling ball with one hand.

Mayra learned all of her multiplication facts up to 12 x 12 and got to ring the success bell outside Mrs. Barber's office. When she rang the bell, it vibrated. The use of vibrations to ring the bell is an example of which type of energy?

• Light energy

• Heat energy

• Chemical energy

• Sound energy

Mrs. Aho decided to prepare noodles for dinner. She put a pot of water on the electric stove to cook the noodles. When the water started to boil, she added the noodles to the pot. Which of the following choices below is an example of energy causing motion or creating change?

• The water sitting inside of the pot.

• The pot sitting on top of the stove.

• The hot water cooking the noodles.

• The noodles sitting inside the water.

Which of the following is NOT an example of water causing motion or a change?

• Water sitting in a glass.

• Water in a river carrying logs downstream.

• Water spinning a wheel to grind grain.

• Water spinning a turbine in a power plant.

What form of energy does a bow and arrow demonstrate?

• Mechanical energy

• Electrical energy

• Radiant energy

• Thermal energy

Mrs. Trapasso was working on a project and her papers were spread all over her desk. Several of her papers slid off and fell to the floor when the air conditioner came on. What is the most likely explanation for why the papers moved when the air conditioner came on, and not before?

• As the dampness of the papers dried, they could slide more easily.

• The air conditioner motor made the floor and the table shake.

• The fan added enough energy to the air to push the paper.

• The cooler air sank and took the papers along with it.

A light bulb attached to a battery by a wire lights up. What form of energy is provided by the battery?

• Mechanical energy

• Electrical energy

• Solar energy

• Sound energy