What causes magnetism?

• the sun

• moving neutrons

• moving charges

• friction

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following is NOT naturally magnetic?

• iron

• copper

• nickel

• cobalt

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NGSS.MS-PS2-3

Which drawing is correct?

• 1

• 2

• 3

• 4

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

Where is the magnetic field strongest around a bar magnet?

• in the middle

• at the poles

• same everywhere

• where the field lines are far apart

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NGSS.MS-PS2-3

How can a wire become magnetic?

• point it north

• add a resistor

• heat it up

• run a current through it

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which direction do the arrows point when representing the magnetic field around a magnet?

• into N

• out of S

• into S

• out of N

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is this?

• electromagnet

• permanent magnet

• motor

• generator

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NGSS.MS-PS2-3

What does the direction of the pointing fingers mean in this picture?

• the direction of the voltage

• the rotation of the wire

• the direction of the magnetic field

• the direction of the current

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

How could you make a stronger electromagnet?

• more coils of wire

• add an iron core

• more current in the wire

• all three

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NGSS.MS-ETS1-2

• one N and one S

• both N

• both S

• each piece still has a N and S