Magnetism

Name 2 types of magnets

Answer explanation

temporary

electromagnet

permanent

What are the three main parts of an electromagnet?

• power source, solenoid, load

• solenoid, load, poles,

• power source, battery, light bulb

How is an electromagnet different from other magnets?

Answer explanation

electromagnets are connected to a power source and can be turned on or off.

What is a magnetic field?

• a current of electrons

• an area of force that is warmer closer to the magnet

• an area of force that surrounds a magnet

Tags

NGSS.MS-PS2-5

Where is a permanent magnet the strongest?

• in the center

• at the poles

• the whole magnet has the same strength

Which metal is NOT magnetic?

• cobalt

• iron

• aluminum

• nickel

Tags

NGSS.MS-PS2-3

What happens to a magnet that is broken in half?

Tags

NGSS.MS-PS2-5

Opposite poles _______ each other.

Tags

NGSS.MS-PS2-3

Like poles ________ each other.

How can you make an electromagnet stronger?

Answer explanation

bigger power source

wrap the wire around the core more times

larger core

Tags

NGSS.MS-PS2-3