Electricity & Magnetism

This force occurs when there is an attractive and repulsive force between two poles.

• Magnetic

• Electric

• Electromagnetism

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The magnetic field of a magnet is ____________ further away from the magnet.

• stronger

• weaker

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What makes an electromagnet stronger?

• greater number of loops

• smaller number of loops

• decreasing the current

• decreasing the voltage

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Magnetism created by an electric current

• electricity
• electromagnetism
• wind energy

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What will happen when these magnets are brought close together?

• They will attract each other.
• They will repel each other.
• Both magnets will turn to the left
• Both magnets will turn to the right

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Magnets have a north and a south ___________

• shape
• color
• pole
• region

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Iron, Nickel and cobalt are all __________________ materials

• Shiny
• poles
• magnetic
• cold

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Where is the strongest attraction force of the magnet?

• at the poles
• in the middle
• above the magnet
• below the magnet

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Which of the following is true about a bar magnet?

• Its magnetic field is strongest near its center.
• It is surrounded by a magnetic field.
• The north pole is stronger than the south pole.
• The south pole is stronger than the north pole.

What is our best evidence that Earth has a magnetic field?

• All things fall toward Earth's center
• A compass needle lines up with it
• Winds blow from east to west
• Earth's oceans all have currents

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NGSS.MS-PS2-3

NGSS.MS-PS2-5