Powers MS PS3-2 Assessment

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1. Energy stored because of gravity is called_________.

• Chemical energy
• Magnetic energy
• Gravitational potential energy
• Mechanical potential energy

2. At which point does a ball on the ramp have the greatest potential energy?

• At the bottom of the ramp
• At the top of the ramp
• Part way down the ramp

3. Which would have the least potential energy?

• Ball sitting on the ground
• Rubber band pulled back tight
• Magnets close to each other but not touching
• A statically charged balloon hovered over someone’s hair

4. Electric potential energy _________ as distance increases.

• Increases
• Decreases
• Remains constant

5. The amount of potential energy in a system depends on the_________ of the objects in the system.

• Position
• Color
• Material
• age

6. Scientists study systems because It is easier to understand a system then to process how the whole universe works together.

• True
• False

7. Examples of two objects exerting force on each other even though they are not touching include

• Static electricity
• The Earth and the Moon
• A magnet and a paperclip
• All of the above

What must to happen in order to pull these magnets apart?

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Give an example of how two objects not in contact can exert force on each other.

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