Magnetic Fields Chapter 1 Test

Front

What is the force between opposite poles of magnets?

Back

Attracting

Front

Why is changing two variables in an experiment problematic?

Back

It makes the results invalid.

Front

What causes the movement of liquid iron in the Earth's core?

Back

Heat from the inner core.

Front

What is produced by the movement of liquid iron in the Earth's core?

Back

Magnetic Field

Front

What does a model showing magnetic field lines indicate about the interaction of magnets?

Back

The magnets will attract each other.

Front

What is the term for the area around a magnet where magnetic forces can be detected?

Back

Magnetic Field.

Front

What happens to the magnetic field lines when two like poles of magnets are brought close together?

Back

They repel each other.

Front

What is the principle that explains why opposite poles of magnets attract?

Back

Magnetic Polarity.

Front

What is the significance of changing only one variable in an experiment?

Back

It allows for valid results.

Front

What is the term for the north and south ends of a magnet?

Back

Magnetic Poles.