AMAZING MAGNETISM CHAPTERS 7-10

_____ allow workers to scale offshore oil rigs, bridges, towers, and steel girders in construction sites.

• Boots

• Grippers

• Testers

• Suction cups

Grippers weigh about 5 pounds.

• True

• False

Earth's center is made up of molten ______.

• nickel

• copper

• iron

• zinc

Earth's magnetic poles are the same as its geographic poles.

• True

• False

A _____ uses a magnet to show which way is north.

• compass

• north pole

• south pole

• rotor

Scientists think that animals that _____ may feel Earth's magnetic pull.

• hibernate

• fly

• swim

• migrate

Videotapes are magnetic.

• True

• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Televisions contain about ____ pounds of magnets.

• 2

• 4

• 3

• 5

The ​ (a)   and ​ (b)   are stored on magnets on the videotape.

• picture
• color
• screen
• sound
• grippers
• poles

Magnets are used to power the speakers and the motor on a TV set.

• True

• False

Tags

NGSS.MS-PS2-3