Unit 2, Module 3, Lesson 1: Magnetic Forces

Front

What is the invisible force field surrounding a magnet called?

Back

A magnetic field.

Front

What is a magnetic pole?

Back

The place on a magnet where the force it exerts is the strongest.

Front

How does magnetic force change with distance?

Back

Magnetic force between two magnets gets weaker the more distance there is between them.

Front

What is a magnet?

Back

An object that attracts iron and other materials that have magnetic qualities similar to iron.

Front

What materials can be attracted to magnets?

Back

Metals such as iron, nickel, and cobalt.

Front

What are the two types of magnetic poles?

Back

North pole and south pole.

Front

What happens when you bring two north poles of magnets together?

Back

They repel each other.

Front

What happens when you bring a north pole and a south pole of magnets together?

Back

They attract each other.

Front

What is the strength of a magnetic field measured in?

Back

Tesla (T).

Front

What is the Earth's magnetic field?

Back

A magnetic field that extends from the Earth's interior out into space.