Unit 5 Assessment: Magnetic Fields

What is the primary factor that determines the potential energy of an object?

• Speed and mass

• Height and mass

• Weight and volume

• Shape and size

If two objects are dropped from the same height, which one will have more potential energy?

• The lighter object

• The heavier object

• Both will have equal potential energy

• It depends on their shape

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Which of these forces works only by combining electric and magnetic forces?

• Magnetic

• Electric

• Electromagnetism

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Which of the following statements about kinetic energy is true?

• It depends only on height

• It increases with speed

• It is always equal to potential energy

• It is not affected by mass

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What happens to the potential energy of an object as it falls?

• It increases

• It decreases

• It stays the same

• It transforms into thermal energy

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This force occurs when there is an attractive and repulsive force between two poles.

• Magnetic

• Electric

• Electromagnetism

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In a magnet the opposite poles will

• Repel.

• Attract.

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The magnetic field of a magnet is further away from the magnet.

• Stronger

• Weaker
• Larger

• Smaller

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Which unit is used to measure energy?

• Newton

• Joule

• Watt

• Meter

Atoms that have a positive charge will be attracted to atoms with a charge.

• Positive

• Negative
• Neutral