Physics Magnetism 9th Grade

What makes magnetic fields at the atomic scale?

• Spinning electrons

• Spinning Protons

• The Neucleus

• Atoms spinning

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What makes magnetic fields at the real life scale?

• All spinning e- must align in an object.

• All spinning p+ must align in an object.

• All spinning atoms must align in an object.

• All spinning atoms must align in an object.

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What does ferromagnetic mean?

• A material that repels magnets.

• A material that is weakly attracted to magnets.

• A material that is strongly attracted to magnets and can create permanent magnets.

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What are the poles of a magnet?

• East/West

• North/South

• North/west

• East/South

Where is the magnetic field strongest on a magnet?

• The sides

• The center

• The poles

• The top

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What happens when you break a magnet?

• It is not possible to break a magnet

• It becomes 2 smaller magnets.

• The poles separate

• The magnet becomes stronger

Why does that happen when a magnet is broken?

• Because it is not possible to separate the poles.

• It is not possible to break a magnet.

• Because its poles are the same

What is magnetic induction?

• When two magnets touch.

• When the north and south poles of a magnet come in contact with eachother.

• When a magnet makes something that isn't normally a magnet act like one

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What is an example of magnetic induction?

• When a magnet touches another magnet

• When a magnet touches a whiteboard

• When a magnet touches a fridge

• When a magnet touches fire.

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Why is it rare to see permanent magnets?

• Because it only works on softer metals.

• Because they must be very strong and all e- must align.

• Because they work better at hotter temps.