Magnetism Quiz

You want to make two groups. Which objects would be in a group that would be attracted to a magnet?

• baseball cap, paper clips, hole punch, wrench

• penny, scissors, baseball cap, butterfly

• scissors, paper clips, hole punch, wrench

• butterfly, penny, paper clips, scissors

The diagram shows the magnetic field surrounding a bar magnet. The closer together the lines of force, the stronger the magnetic field. According to the diagram, where is the magnetic field the strongest.

• north pole

• south pole

• both poles

• in the middle

Which pair of magnets would result from cutting the magnet in half?

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According to the diagram, which pair could both be north poles?

• A and B

• B and C

• A and C

• C and D

The picture shows an experiment used to determine the effect of using more nails in the core of an electromagnet. Which of the following would make this a better-designed experiment?

• Using a different number of batteries for each electromagnet

• Using the same number of turns of wire for each electromagnet

• Inserting an ammeter in each circuit between the battery and the nails

• Using a different size battery for each electromagnet

This structure produces power for use in the home by converting ........

• chemical energy into mechanical energy

• electrical energy into mechanical energy

• chemical energy into electrical energy

• mechanical energy into electrical energy

Harry wanted to find out how to make an electromagnet stronger. The results of his experiment are listed in the table above. According to his data, which of the following foes not make an electromagnet stronger?

• increasing the number of batteries that are connected

• increasing the number of wire turns around the core

• increasing the number of mails inside the core

• increasing the number of tacks used

A student performed an experiment to determine the number of paper clips that are attracted to an electromagnet as the amount of current changes. The data collected is displayed in the table.

Which graph best describes the relationship between magnetism and electrical current?

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In this picture, the iron filings show the shape of the magnetic

• axis

• core

• field

• pole

Which of these correctly shows what happens when two magnets are placed side by side?

The arrows show the direction the magnets would move.

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