Quiz on Earth's Magnetism and Electromagnets

What is the Geographic North Pole?

• The northernmost point on Earth

• The center of the Earth

• The point where the magnetic field points downwards

• A location that changes over time

What does Magnetic North refer to?

• A fixed location on the Earth's surface

• The point where all lines of longitude meet

• The point where the magnetic field points vertically down

• The same as the Geographic North Pole

Who discovered magnetism around 4000 years ago?

• A Chinese explorer

• A Greek shepherd named Magnes

• An Egyptian scientist

• A Roman philosopher

What is the primary use of a compass?

• To determine altitude

• To find direction

• To measure temperature

• To calculate speed

Where is Magnetic North currently located?

• In the Arctic Ocean, north of Alaska

• At the Geographic North Pole

• In the Southern Hemisphere

• Near the equator

What do some animals use to navigate long distances?

• Landmarks

• The stars

• Weather patterns

• The Earth's magnetic field

What happens to the Earth's magnetic field over time?

• It strengthens continuously

• It disappears completely

• It reverses periodically

• It remains constant

What is an electromagnet?

• A permanent magnet

• A magnet created by electric current

• A natural magnet found in rocks

• A type of compass

What materials are commonly used to create an electromagnet's core?

• Iron and steel

• Copper and aluminum

• Plastic and wood

• Gold and silver

What happens to an electromagnet when the electric current is turned off?

• It becomes a permanent magnet

• It gains additional strength

• It attracts all metals

• It loses most of its magnetism