Chapter 7 Magnets

What does the north pole of a compass point to?

• Earth's north magnetic pole

• Earth's south magnetic pole

• The equator

• Directly upwards

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What type of energy do windmills change into electrical energy?

• Chemical energy

• Kinetic energy

• Thermal energy

• Nuclear energy

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What does the term "electric field" refer to?

• A region where a magnet's force is strongest

• A group of atoms with aligned magnetic poles

• An area of activity; an area in which a magnet has influence

• Surrounds an electric charge and exerts a force on other electric charges

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What is a "magnetic pole"?

• A group of atoms with aligned magnetic poles

• Properties and interactions of magnets

• An area of activity; an area in which a magnet has influence

• A region where a magnet's force is strongest

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What is a "magnetic domain"?

• Something that exerts a force on magnets and objects made of magnetic materials

• A region where a magnet's force is strongest

• Properties and interactions of magnets

• A group of atoms with aligned magnetic poles

What do magnets apply to other objects or magnets?

• Only repulsive force

• Only attractive force

• Attractive or repulsive force

• Gravitational force

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How does the interaction of two magnets change?

• It does not depend on their orientation

• It decreases as they move closer together

• It increases as they move closer together

• It remains constant regardless of distance

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Where is the magnetic field the strongest on a magnet?

• In the middle of the magnet

• At the north pole only

• At the south pole only

• At the poles

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What happens when like magnetic poles come close to each other?

• They attract each other

• They repel each other

• They become neutral

• They create an electric current

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What does a compass needle do?

• It points toward the geographic north pole

• It turns to line up with Earth's magnetic field

• It always points toward the sun

• It indicates the temperature