Science- Energizing Everything Review

A girl was sitting on a swing. Her brother pulled the swing back and let go. When the swing comes back, will it hit him? (He stands still and doesn't move at all.)

• Yes, because the swing gets more energy when it's moving.

• Yes, because the swing will be going fast by the time it gets to him.

• No, because the swing is only going fast when it's away from him.

• No, because the swing won't have enough energy to go higher than where it started.

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Which answer is correct?

• Coaster A will go faster because it's taller and has more gravitational energy stored in the first hill.

• Coaster A will go slower because it has more hills to climb up.

• Coaster B will go faster because it has less hills.

• Coaster B will go faster because it has a smaller hill in the beginning and less gravitational energy is stored.

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Where does the energy come from?

• coal

• gasoline

• wood

• steam

Where does the energy come from?

• coal

• wood

• gasoline

• food

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Where does the energy come from?

• food

• gasoline

• battery

• wood

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Where does the energy come from?

• gravitational/height

• steam

• electricity

• gasoline

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Which of the answers are correct?

• The long wire of the LED bulb should be connected to the + side of the battery.

• The short wire of the LED bulb should be connected to the + side of the battery.

• It doesn't matter which wire is connected to which side.

Why are wires made of copper or aluminum?

• They are shiny and reflect light.

• They burn easily.

• They are good conductors of energy.

• They are cheap materials to buy.

Which answer is correct?

• The white ball will transfer its energy to the 7 ball and make a sound. The 7 ball will start to move.

• The white ball will transfer energy to the 3 ball and make a sound. The 3 ball will start to move.

• The white ball will not transfer any energy and stop moving after Camila hits it.

• The white ball might hit the 7 ball, but it will not make a sound or transfer its energy.

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Which type of energy should Ashville use and why?

• Solar energy because they get about 300 sunny days each year.

• Wind energy because they have winds at 5 miles per hour.

• Water energy because they have a stream.

• None of these alternative types of energy would work in Ashville.

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