Magnetism Review

When you bring the south ends of two magnets close together, they repel each other.

• True
• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The Earth's magnetic field is called the magnetosphere.

• True
• False

Before alternating current from a power plant can enter a home, its voltage must be decreased.

• True
• False

The south pole of a magnet

• attracts another south pole
• repels a paper clip
• attracts a north pole
• repels a north pole

Tags

NGSS.MS-PS2-3

When you break an iron magnet into two pieces, you get

• two north poles
• two south poles
• two north and two south poles
• a piece of iron that is no longer magnetic

The atoms in a magnet are

• arranged randomly
• lined up
• negatively charged
• positively charged

A current carrying wire wrapped around an iron core is called

• a generator
• a conductor
• a transformer
• an electromagnet

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A device that increases or decreases voltage in a power line is a

• transformer
• generator
• motor
• commutator

A current that reverses direction in a regular pattern is called

• alternating current
• circuit current
• direct current
• magnetic current

The needle of a compass aligns to

• the equator
• the magnetosphere
• the nearest mountain
• the oceans