Properties of Magnets, Electricity, & Electromagnets

Which materials are magnetic?

• Cobalt

• Iron

• Nickel

• All of the above

Tags

NGSS.MS-PS2-3

Magnetic poles that are opposite (north & south)

• attract

• repel

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Magnetic poles that are the same (north & north; south & south)

• attract

• repel

True or False: electromagnets can be turned off

• True

• False

The 3 parts that an electromagnet consist of are:

• battery

• magnet

• wire

• core (iron nail)

• light bulb

Magnets can interact without touching.

• True
• False

Tags

NGSS.MS-PS2-5

The area or lines of magnetic force surrounding a magnet is known as its _____________.

• magnetic field

• magnetic poles

• magnetic fan lines

• magnetic tan lines

Tags

NGSS.MS-PS2-3

True or False: All metals stick to magnets.

• True

• False

Tags

NGSS.MS-PS2-3

Which if these is a way to make an electromagnet stronger?

• putting a switch in the electrical circuit

• replacing the iron core with a copper core

• replacing the copper wire with plastic wire

• wrapping the wire around the iron core more times

Tags

NGSS.MS-PS2-3

The _ the current in an electromagnet has, the stronger the magnetic field.

• less

• greater

• same

Tags

NGSS.MS-PS2-3