U2 L4.1: Magnetic Fields

What is magnetism?

• The force that drives electrical current.

• The force a magnet exerts on certain other materials.

• The force a magnet consumes after electricity passes through it.

• The force from Star Wars.

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What is a magnetic field?

• The area around a magnet that stays still.

• The area around a magnet that allows electricity to flow through it.

• The area around a magnet that has magnetism.

• The area around a magnet that exerts force on another material.

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True or False: All magnets have a magnetic field.

• True - of course.

• False - definitely not.

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True or False: A Magnet has magnetism even if it doesn't touch another material.

• True - it's scientific.

• False - it's scientifically incorrect.

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What happens in a magnetic field?

• A force is exerted that transforms electrical energy into sound energy.

• A force is exerted that attracts or repels another material.

• A force is exerted that increases electrical current.

• The force.

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What does magnetism do?

• It increases voltage in a circuit.

• It creates electrical power.

• It makes resistance decrease.

• It attracts or repels other materials.

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Where is magnetism strongest at?

• The magnetic poles.

• The outer atmosphere.

• At the center of the magnet.

• With an electrical current flowing through it.

Is magnetism stronger CLOSER or FARTHER from a magnet?

• Farther - it has to be because magnetic materials speed up towards the magnet with the more room.

• Closer - it has to be because magnetic materials feel that pull faster when closer.

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How do LIKE magnetic poles (North pole with North pole, or South pole with South pole) react with one another?

• Like poles attract.

• Like poles repel.

• Like poles do nothing.

• Like poles convert energy.

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How do DIFFERENT magnetic poles (North pole with South pole, or South pole with North pole) react with one another?

• Different poles attract.

• Different poles repel.

• Different poles do nothing.

• Different poles convert energy.

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