Exploring Forms of Energy and Magnetism

Which of the following items is likely to be attracted to a magnet?

• Plastic spoon

• Wooden pencil

• Glass marble

• Paper clip

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Which metal is not considered a magnetic material?

• Nickel

• Copper

• Cobalt

• Iron

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What makes a material magnetic?

• Being a liquid

• Being a metal

• Arrangement of electrons

• Being transparent

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What did the Greeks discover that was related to magnetism?

• Electricity

• Magnetite

• Gravity

• Alloy

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What discovery is attributed to the Greeks in the context of magnetism?

• The magnetic field of Earth

• The law of attraction

• The first electromagnet

• Magnetite

What is the strongest part of a magnet called?

• The core

• The equator

• The pole

• The field

How does Earth's magnetic field affect a compass?

• It has no effect

• It demagnetizes the compass

• It reverses the needle

• It aligns with the poles

What is a permanent magnet?

• A magnet that only works in space

• A magnet that retains its magnetism permanently

• A magnet that can be turned on and off

• A magnet that loses its magnetism over time

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What is the principle behind electromagnets?

• They use permanent magnets

• They are created by running electricity through a material

• They operate without electricity

• They cannot be turned off

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How can the strength of an electromagnet be increased?

• By using a smaller battery

• By increasing the number of coils

• By painting it

• By cooling it down

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