Magnets & Electromagnets

Magnetism is generated by moving

• protons.
• electrons.
• neutrons.
• elements.

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If you place the North pole of a magnet next to the South pole of another magnet, they will:

• Attract
• Repel
• Do nothing
• Shatter

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What is responsible for the Magnetic Field around Earth?

• The Earth's crust
• The Earth's molton iron core
• The Earth's mantel
• The Sun

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Iron, Nickel and cobalt are all __________________ materials

• Shiny
• poles
• magnetic
• cold

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Magnets will repel each other if you put two north poles or two __________________ poles together

• big
• magnetic
• north
• south

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A coil of wire acts like a magnet when __________________ flows through it. 

• water
• current
• voltage
• food

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This is called an __________________.

• bomb
• circuit
• electromagnet
• coil

You can make an electromagnet stronger by:  using __________________ coils of wire

• bigger
• smaller
• more
• less

  You can make an electromagnet stronger by: having a __________________ current in the wire

• smaller
• larger
• greener
• water

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You can make an electromagnet stronger by: using a __________________ material for the core.

• soft
• conducting
• magnetic
• hard