The Earth's Magnetic Field

Front

Magnetic field lines are closest together at the __________.

Back

poles

Front

Are Earth's magnetic poles in the same place as the geographic poles?

Back

False

Front

The effects of a magnetic field can be observed using non-metal fillings.

Back

False

Front

Can magnets interact without touching?

Back

True

Front

Do magnetic field lines always cross?

Back

False

Front

The motion of liquid _______ in the Earth's core creates a magnetic field.

Back

Iron

Front

What is the angle between geographic north and the north to which a compass needle points?

Back

declination

Front

When the magnetic fields of two or more magnets overlap, a(n) _________ magnetic field forms.

Back

combined

Front

A compass behaves as it does because each needle acts as a(n) ___________.

Back

Magnet

Front

A(n) __________ is a device that has a magnetized needle that can spin freely.

Back

Compass