Magnetism 1

What will happen when these magnets are brought close together?

• They will attract each other.

• They will repel each other.

• They will stay the same.

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Magnets have a north and a south ___________

• shape
• color
• pole
• region

Where a magnetic field is strong the lines are ​ (a)   . Where a magnetic field is weak the lines are ​ (b)   . ​

• close together
• far apart

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Are the magnetic field lines in the picture correct?

• Yes, because they point from north to south.

• No, because they point from north to south (they're supposed to go the other way).

• Yes, because the North pole is on the left in all pictures.

• No, because the North pole is on the left in all pictures (it's supposed to be on the right).

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

The strongest part of a magnet is...

• the bars .

• the force field.

• the poles.

• the middle.

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NGSS.MS-PS2-3

The area of magnetic force around a magnet is known as its _____________.

• magnetic field

• magnetic declination

• magnetic fan lines

• magnetic tan lines

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NGSS.MS-PS2-3

A ________ is a device that has a magnet on a needle that spins freely. It is used for navigation because its needle usually points north.

• calculator

• ruler

• compass

• map

Magnetic field lines always cross.

• True
• False

Electric currents produce _____________

• electron clouds

• magnetic fields

• sound waves

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NGSS.MS-PS2-3

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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NGSS.MS-PS2-3