What is Magnetism

What natural phenomenon is created by the Earth's magnetic field interacting with solar wind?

• Solar flares

• Lunar eclipses

• Aurora Borealis

• Rainbows

What phenomenon is responsible for the northern lights?

• The reflection of sunlight off the moon

• The Earth's magnetic field interacting with solar wind

• Volcanic eruptions in the polar regions

• Light pollution from northern cities

Who discovered that the Earth itself acts like a giant magnet?

• William Gilbert

• Isaac Newton

• Nikola Tesla

• Albert Einstein

What force is created by the interaction of electric currents or fields with magnetic fields?

• Nuclear force

• Electromagnetism

• Friction

• Gravity

What did James Clerk Maxwell discover about electricity and magnetism?

• They are two aspects of the same force.

• They are types of nuclear forces.

• They only exist in outer space.

• They are unrelated forces.

What is required for a material to become magnetized?

• It must contain iron.

• It must be heated.

• It must be exposed to light.

• It must have unpaired electrons.

What can cause a magnet to lose its magnetism?

• Heating it

• Freezing it

• Cutting it in half

• Painting it

Why isn't everything magnetic?

• Because magnetism only occurs in outer space.

• Because most electrons in atoms spin in opposite directions, canceling out magnetic effects.

• Because magnetism is a rare phenomenon.

• Because only liquids can be magnetic.

What does the right hand rule help to determine?

• The direction of the magnetic force on a charge

• The strength of a magnetic field

• The speed of an electron

• The temperature of a magnet

What is the unit of measurement for the strength of a magnetic field?

• Watt

• Newton

• Coulomb

• Tesla