Magnets and electromagnetism

What effect will the south pole of one magnet have on the south pole of another magnet?

• Repulsive
• Attractive
• Combative
• No effect

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

• Add more coils of wire to the nail.
• Use a smaller battery.
• Reverse the poles of the magnet.
• Remove all the coils and the nail.

Tags

NGSS.MS-PS2-3

NGSS.MS-ETS1-2

In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.

• wire, iron, electric
• electric, wire, iron
• iron, electric, wire
• excited, hair, apple

Tags

NGSS.MS-PS2-3

What is most likely to happen when the switch is closed?

• A magnetic field should be produced
• The nail will rust
• The battery will explode
• The wire will catch on fire

Tags

NGSS.MS-PS2-3

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How do electromagnets differ from regular magnets? 

• A. They  can be turned off and on 
• B. Their polarity can be reversed
• C. Their strength can be changed
• D. All of the above

Tags

NGSS.MS-PS2-3

Where does a magnetic field occur in relation to an electrified wire? 

• At either end, but not in the middle
• Only the side closest to source
• Around the entire length of wire
• Only the side furthest from source

Tags

NGSS.MS-PS2-3

Which materials are magnetic?

• Wood

• Zinc

• Cobalt

• Aluminium

• All the Above

Tags

NGSS.MS-PS2-3

What is the correct word of North pole and South pole?

• North Santa Pole and South Santa Pole

• North Hemisphere Pole and South Hemisphere Pole

• North-seeking pole and South-seeking pole

• All the Above

Which direction does the needle of a compass point to?

• North

• South

• East

• West

• None of the above

Which of the followings use Electromagnets?

• Speakers

• Door Bells

• Showers

• Calculators

• All of the above

Tags

NGSS.MS-PS2-3