Unit 3- Energy

Energy is the ability to do work or to cause ______________________.

(VA 2018 SOL – 5.2a)

• knowledge

• change

• accidents

• happiness

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Energy is the ability to do________________ or to cause change.

(VA 2018 SOL – 5.2a)

• school projects

• exercises

• laundry

• work

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What word represents the picture ?

(VA 2018 SOL – 5.2b)

• mechanical

• electrical

• light

• thermal

• sound

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What word represents the picture ?

(VA 2018 SOL – 5.2b)

• mechanical

• electrical

• light

• thermal

• sound

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What word represents the picture ?

(VA 2018 SOL – 5.2b)

• mechanical

• electrical

• light

• thermal

• sound

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What word represents the picture ?

(VA 2018 SOL – 5.2b)

• mechanical

• electrical

• light

• thermal

• sound

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In the picture above, what caused the plate to break?

(VA 2018 SOL – 5.2a)

• the shape of plate

• the energy of motion

• the color of plate

• the energy of frustration

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Look at the picture. What form of energy caused the cake to bake?

(VA 2018 SOL – 5.2a)

• light

• sound

• thermal

• electrical

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Carol tried to lift the boulder, but she could not lift it. Carol tried to push the tire, but she could not move it. Carol tried again and again. Finally, she decided to leave the tire alone and to go home. Carol was tired and upset. The next day, Carol complained to her science teacher. She said, “I did all that hard work for nothing! All that energy I spent, and the tire did not move even a little.” The teacher asked the class, “What do you think? Was work done to the tire?”

Who is right?

• Melody said, “No. Carol transformed her energy into nothing.”

• Tyler said, “Yes. Because Carol was tired.”

• Rose said, “No. Because Carol pulled and pushed, but the rock did not move.”

• Kevin said, “Yes. Because Carol used her energy to push on the rock.”

The human in the picture below hears the voice in the mega phone. This provides evidence that energy can be -

(VA 2018 SOL – 5.2b)

• transferred from place to place by sound.

• transferred through contact between objects.

• transformed from sound to work.

• first created and then destroyed.

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