Unit Test — Unit test

Question 1

Joe follows the procedure below to make a compass.1. Move a magnet from the top of a needle to its point fifty times.2. Lay the needle on a cork that is floating in a bowl of water.3. Observe the direction that the needle points.

Revolt · Accepted Answer

to magnetize the needle

Question 2

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 3

Juan makes an adjustment to an electromagnet that causes the electromagnet to lose some of its strength. What did Juan most likely do?

Revolt · Accepted Answer

He reduced the number of loops in the wire.

Question 4

Anton created a chart listing different types of materials.

Revolt · Accepted Answer

X: paperY: silicon

Question 5

A hair dryer has a resistance of 11.5 . What current does it conduct when it is plugged into a wall outlet that provides 120 V?

Revolt · Accepted Answer

10.4 A

Unit Test — Unit test Answers

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