Magnets and Magnetism — Unit test Answers

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How was Aristotle’s model similar to Ptolemy’s model?

Both models stated that the planets rotate on their axes.

Both models stated that Earth is the center of the system around which other objects orbit.

Both models stated that the planets and objects in the solar system have small orbits called epicycles.

Both models stated that the Sun is the center of the system around which objects have elliptical orbits.

How are the magnetic field lines near the south pole of a magnet affected when a second south pole is brought near it?

The field lines combine with the lines around the second south pole.

The field lines overlap with the lines from the second south pole.

The field lines bend toward the second south pole.

The field lines bend away from the second south pole.

Which statement correctly describes Earth’s magnetic field?

A compass can lead a hiker to the geographic North Pole.

The magnetic pole near the South Pole is a north pole.

Compasses point toward a magnetic pole that is a north pole.

Field lines circle Earth from east to west.

Which phrase accurately describes an elliptical galaxy?

may be spiral-shaped

has no recognizable shape

has no new stars being formed

has a lot of gas and dust between stars

Which two planets are called "ice giants”?

Jupiter and Venus

Neptune and Uranus

Saturn and Jupiter

Uranus and Saturn

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