Exploring the Science of Magnetism

What innovative solution did engineers use to break the 100 mph barrier for the Superman roller coaster?

• Wind turbines

• Hydraulic lifts

• Magnets and electromagnets

• Rocket propulsion

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What is the fundamental principle behind the operation of linear synchronous motors used in the Superman roller coaster?

• Hydraulic pressure

• Solar power

• Wind resistance

• Magnetic attraction and repulsion

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What is a magnet's selective attraction force?

• It attracts iron and similar metals but not wood or plastic

• It attracts only non-metallic objects

• It repels all materials

• It attracts all materials equally

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How can you make a bar of steel magnetic?

• By cooling it

• By bending it

• By touching it with a magnet

• By heating it

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What is an electromagnet?

• A magnet that works without electricity

• A magnet that requires electricity to function

• A permanent magnet

• A natural magnet

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What is the primary material used in the construction of flexible magnets?

• Wood

• Synthetic rubber and ferrite powder

• Copper

• Steel

Who first concluded that the Earth is a giant magnet?

• William Gilbert

• Isaac Newton

• Michael Faraday

• Hans Christian Ørsted

What discovery did Hans Christian Ørsted make in 1820?

• Electricity can create magnetism

• Magnetism can create electricity

• The existence of electromagnets

• The Earth is a giant magnet

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What is the potential future application of magnets in space propulsion?

• Using magnets to create artificial gravity

• Using magnets to generate solar power

• Using magnets to contain and direct superheated plasmas

• Using magnets to navigate through space

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What is a unique property of plastic magnets discovered by researchers?

• They are stronger than steel magnets

• They do not require electricity to function

• They are naturally occurring

• Their magnetism can be controlled using different colors of light