What Is a Magnet

True or False: All metals stick to magnets.

• True
• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What particle causes magnetism in an atom?

• protons

• neutrons

• electrons

• nucleus

Which poles are attracted? 

• north and north
• south and south
• north and south

Tags

NGSS.MS-PS2-3

Which poles repel?

• north and south
• south and north
• south and south

Bob made an electromagnet but it was very weak. How can he make it stronger?

• take away a d-cell battery

• wrap the wire loosely around the core

• use more coils of wire around the core

• use less winds around the core

Tags

NGSS.MS-ETS1-2

Which metals are attracted to magnets? 

• iron, nickel, cobalt
• gold, silver, platinum
• copper, magnesium, aluminum

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which is not a property of a magnet? 

• all magnets have two poles
• all magnets have a force of attraction or repulsion
• all magnets are surrounded by a magnetic field
• all magnets can be turned off

What items will a magnet attract?

• Beach ball, glass
• nails, paper clip
• book, paper
• golf ball, glue

Tags

NGSS.3-PS2-4

How is Earth's magnetic field similar to that of a magnet?

• It's shaped like a horseshoe.
• It has north and south poles.
• It is made plastic.
• It is hundreds of miles long.

This substance is

• magnetized
• unmagnetized
• positively charged
• negatively charged

Tags

NGSS.MS-PS2-3