Magnets and Magnetism

Question 1

Which best describes Earth’s magnetic field lines?

Revolt · Accepted Answer

The field lines go out of Earth near the geographic South Pole and enter Earth near the geographic North Pole in an area where the magnetic pole does not align with the geographic pole.

Question 2

In an illustration, lines of force are drawn around a magnet to illustrate the magnetic

Revolt · Accepted Answer

field.

Question 3

Jill uses a magnet to pick up a nail. Then, she touches the nail to a paper clip and picks up the paper clip. What will most likely happen when she pulls the magnet away from the nail?

Revolt · Accepted Answer

The paper clip will fall off of the nail because the nail was only a temporary magnet.

Question 4

The diagram shows the field lines near the poles, X and Y, of two magnets.

Revolt · Accepted Answer

X: northY: north

Question 5

Two bar magnets are hung from metal rods and held in the position shown below. The magnets are released and swing freely. Which diagram best predicts their final position?

Revolt · Accepted Answer

A rectangular box with 2 black lines running down from it, each to a horizontal bar magnet labeled N to the left and S to the right. There is a gap between the magnets. The left magnet hangs to the right. The right magnet hangs to the left.

Question 6

A bar magnet and a second object are hung from metal rods. The diagram below shows what happens when both objects are released.

Revolt · Accepted Answer

a bar magnet with its south pole on the left

Question 7

Jolie builds a model of a maglev train. She uses disc magnets to levitate the train. A disc magnet has its north and south poles on its faces, as shown.

Revolt · Accepted Answer

flat, so that the north pole of the magnets on the train point up and the north poles of the magnets on the track point down

Question 8

Which refers to the ends of a magnet where the forces are strongest?

Revolt · Accepted Answer

magnetic poles

Question 9

Mateo drew the field lines around the ends of two bar magnets but forgot to label the direction of the lines with arrows.

Revolt · Accepted Answer

left

Question 10

Which element is magnetic?

Revolt · Accepted Answer

cobalt

Magnets and Magnetism Answers

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