Unit 3.2: Modeling Electric and Magnetic Fields - Part 2

Paper clips are attracted to magnets because they contain ____.

• iron

• aluminum

• copper

• silver

An atom is a positively charged nucleus that is orbited by negatively charged _____.

• electrons

• protons

• neutrons

• photons

When the atoms of a substance align their magnetic fields with each other, they are called ____.

• ferromagnetic

• anti-ferromagnetic

• a compass

• a lodestone

A ____ is a material that allows heat and electricity to pass through it. A ____ is a material that does NOT allow heat and electricity to pass through it.

• Conductor, Insulator

• Insulator, Conductor

What is the traditional color for North on a compass?

• red

• white

• blue

• black

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

• It is hundreds of miles long.

• It is shaped like a horseshoe.

• It has North and South poles

• It is made in Earth’s core.

What is our best evidence that Earth has a magnetic field?

• A compass needle lines up with it.

• Earth’s oceans all have currents.

• All things fall toward Earth’s center.

• Winds blow from east to west.

What is the shape of a magnetic field around the Earth?

• 
• 
• 
• 

A magnet has a _______ pole and a _______ pole.

• north, south

• east, west

• positive, negative

• red, blue

Which of the following would a magnet ATTRACT?

• A copper penny

• An iron nail

• A piece of glass

• A wood block