T3L2HW

Front

What happens to the magnetic force between two magnets if one magnet’s strength is doubled?

Back

The force is doubled.

Front

What happens to the direction of magnetic field lines near a bar magnet?

Back

They form closed loops from the north pole to the south pole.

Front

How can you demonstrate the interaction between magnetic poles?

Back

Place two like poles near each other and observe them repel.

Front

Why is the electrical charge on particles in the solar wind an important element of the protection that Earth's magnetic field provides?

Back

Earth’s magnetic field deflects the charged particles, protecting the atmosphere.

Front

What happens to potential energy when you pull a magnet off a refrigerator door?

Back

The potential energy increases as the magnet is pulled away.

Front

What is a magnet?

Back

A magnet is an object that produces a magnetic field, attracting certain metals like iron.

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 is the role of Earth's magnetic field?

Back

It protects the Earth from solar wind and cosmic radiation.

Front

What is magnetic field strength?

Back

Magnetic field strength is a measure of the intensity of the magnetic field.