Exploring Magnetism Concepts

What is a magnetic field?

• A special kind of light emitted by magnets

• An invisible force field around a magnet

• A visible area around a magnet

• A type of electric current

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Which metals are attracted by magnets?

• Lead, Tin, and Zinc

• Gold, Silver, and Platinum

• Iron, Nickel, and Cobalt

• Copper, Aluminum, and Mercury

What happens when magnetic domains align?

• The metal loses its magnetic properties

• A magnetic field is created

• The metal becomes an insulator

• It generates electricity

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What occurs if you split a magnet?

• It loses its magnetic properties

• Each piece becomes a non-magnetic metal

• Both pieces have north and south poles

• It creates an electric current

What is magnetite?

• A synthetic magnetic material

• An electric insulator

• A natural magnet

• A type of battery

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What is the principle behind compasses?

• Atmospheric pressure

• Solar radiation

• Gravity

• Magnetism of Earth

Why do compass needles always point north?

• Because of the Sun's position

• Due to Earth's magnetic field

• Because of the wind

• Due to the Moon's gravitational pull

What creates an electromagnet?

• Applying pressure to a crystal

• Cooling a piece of metal

• Running an electric current through a wire

• Passing water through a wire

What can control the strength of an electromagnet?

• The color of the wire

• The temperature of the environment

• The length of the wire

• The amount of electric current

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What role do electromagnets play in technology?

• They are used to create light

• Used in generating solar power

• Found in electric motors and other devices

• They are used to cool down devices

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