Magnetism

A magnet will attract scissors if the scissors contain: 

• copper
• aluminum
• gold
• nickel

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NGSS.MS-PS2-3

A device that uses a free-moving magnetic needle to show direction is a:

• Ruler
• magnet
• compass
• magnetic field

The space around a magnet where the force of a magnet can attract best is called__________

• magnetism
• bar magnet
• horseshoe magnet
• magnetic field

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NGSS.MS-PS2-5

The force of magnetism is stronger when magnets are ________________

• cold
• round
• closer together
• farther apart

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

What characteristics do magnetic substances have?

• They can give you a "shock" when you touch them
• They can push or pull objects without touching them
• They are always black and cold to touch
• They fall faster than other objects when you drop them

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

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

A simple electromagnet can be made with which of the following?

• an electric current
• a turbine and nail
• a nail, a wire, and a battery
• a compass and a battery

How can the strength of an electromagnet be increased?

• by rubbing it with a stronger magnet
• by increasing the coils of wire around the iron
• by increasing the length of the wire from the battery
• by loosening the coil of wire around the iron

How are electromagnets different from magnets?

• magnets can be turned on/off
• you can turn an electromagnet on/off
• magnets are more powerful
• magnets have a North and South pole

True or False: A magnetic field is invisible.

• True
• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5