Physical Science GMAS Review 2023

Which part of a circuit starts and stops the flow of electric current?

• battery

• lightbulb

• wire

• switch

Tags

S5P3

Which type of material DOES NOT allow electric current to flow through it?

• an insulator

• a magnet

• a conductor

• a metal

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S5P3

Which of these will the south pole of a bar magnet repel?

• a paper clip

• the north pole of another magnet

• the south pole of another magnet

• an iron nail

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S5P3

Maxine makes a mixture of four solid materials. Which material could a bar magnet separate from the rest of the mixture?

• sand

• sugar

• aluminum scraps

• iron fillings

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S5P2

Electric current DOES NOT flow in

• an open circuit

• a closed circuit

• an electromagnet

• a complete circuit

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S5P3

When water freezes, what happens?

• The water changes from a liquid to a solid.

• The water changes from a solid to a gas.

• The water changes from a liquid to a gas.

• The water changes from a solid to a liquid.

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S5P2

How are a bar magnet and an electromagnet the same?

• They both can be turned on and off.

• They both have two opposite poles.

• They both have the same shape.

• They both need electric current.

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S5P3

Which of these is a way to make an electromagnet stronger?

• increasing the electric current flowing through the wire

• replacing the iron core with a copper wire

• replacing the copper wire with plastic wire

• wrapping the wire around the iron core fewer times

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S5P3

Which material is a conductor?

• wood

• glass

• rubber

• aluminum

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S5P3

Michael measures the mass of a carton of milk. Then he puts the carton in the freezer. What will happen to the mass of the carton of milk?

• It will increase

• It will decrease

• It will stay the same

• It will not be able to be measured

Tags

S5P2