Quiz about Physical Science GMAS Review 2023

Question 1

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

Accepted Answer

switch

Answer

battery

Answer

lightbulb

Answer

wire

Question 2

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

Accepted Answer

an insulator

Answer

a magnet

Answer

a conductor

Answer

a metal

Question 3

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

Accepted Answer

the south pole of another magnet

Answer

a paper clip

Answer

the north pole of another magnet

Answer

an iron nail

Question 4

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

Accepted Answer

iron fillings

Answer

sand

Answer

sugar

Answer

aluminum scraps

Question 5

Electric current DOES NOT flow in

Accepted Answer

an open circuit

Answer

a closed circuit

Answer

an electromagnet

Answer

a complete circuit

Question 6

When water freezes, what happens?

Accepted Answer

The water changes from a liquid to a solid.

Answer

The water changes from a solid to a gas.

Answer

The water changes from a liquid to a gas.

Answer

The water changes from a solid to a liquid.

Question 7

How are a bar magnet and an electromagnet the same?

Accepted Answer

They both need electric current.

Answer

They both can be turned on and off.

Answer

They both have two opposite poles.

Answer

They both have the same shape.

Question 8

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

Accepted Answer

increasing the electric current flowing through the wire

Answer

replacing the iron core with a copper wire

Answer

replacing the copper wire with plastic wire

Answer

wrapping the wire around the iron core fewer times

Question 9

Which material is a conductor?

Accepted Answer

aluminum

Answer

wood

Answer

glass

Answer

rubber

Question 10

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?

Accepted Answer

It will stay the same

Answer

It will increase

Answer

It will decrease

Answer

It will not be able to be measured

Question 11

When a liquid evaporates,

Accepted Answer

it becomes a gas.

Answer

it melts.

Answer

it freezes.

Answer

it becomes a solid.

Question 12

What happens when a liquid freezes?

Accepted Answer

A physical change takes place.

Answer

A chemical change takes place.

Answer

New substances form.

Answer

The mass of the liquid changes.

Question 13

John changed the texture of a wooden box by rubbing it with sandpaper. What did John do to the box?

Accepted Answer

He changed a physical property of the box.

Answer

He changed the wood to a different substance.

Answer

He changed a chemical property of the box.

Answer

He made no change to the box.

Question 14

Eric wants to study the pattern on a butterfly's wings a little more closely. Which tool would be BEST for him to use?

Accepted Answer

a hand lens

Answer

eyeglasses

Answer

a microscope

Answer

a mirror

Question 15

Kevin places bananas on a pan balance. He puts a bunch of five bananas in one pan. He puts five separate bananas in the other pan. All the bananas are the same size. What will the balance MOST LIKELY do?

Accepted Answer

stay level

Answer

tip toward the bunch of bananas

Answer

tip toward the separate bananas

Answer

dip back and forth

Question 16

Hannah has a stack of 20 blocks. The mass of each block is 100 grams. What is the mass of the stack?

Accepted Answer

2000 grams

Answer

200 grams

Answer

80 grams

Answer

120 grams

Question 17

Which observation is MOST LIKELY evidence that a chemical change is taking place?

Accepted Answer

A material changes temperature without being heated or cooled.

Answer

a material changes temperature after being cooled or heated.

Answer

Bubbles form when a liquid is heated.

Answer

A solid changes shape when it is bent.

Question 18

Layla pours oil into a beaker. She then places the beaker on a balance. What measurement will she MOST LIKELY use the balance to find?

Accepted Answer

the total mass of the oil and beaker

Answer

the mass of the oil

Answer

the mass of the beaker

Answer

the amount of space the oil and beaker take up

Question 19

Which of these causes static electricity?

Accepted Answer

electrons moving from one object to another

Answer

electrical circuits

Answer

electrons floating in the air

Answer

electrical outlets

Question 20

Which of these will cause a chemical change?

Accepted Answer

mixing vinegar and baking soda

Answer

dissolving salt in water

Answer

boiling water that has salt dissolve in it

Answer

mixing sand and iron filings

Question 21

Which of these is a way to separate a mixture of sand, salt, and water?

Accepted Answer

Filter the sand from the salt and water, and then let the water evaportate.

Answer

Filter the salt from the sand and water, and then let the water evaporate.

Answer

Filter the sand and salt from the water, and then use a magnet to separate the salt from the sand.

Answer

Let the water evaporate, and then filter the sand from the salt.

Question 22

Which of these is NOT a chemical property?

Accepted Answer

whether a substance is a solid, a liquid, or gas

Answer

whether a substance burns

Answer

whether a substance rusts

Answer

whether a substance reacts with oxygen

Question 23

An object with a negative charge will

Accepted Answer

attract an object with a positive charge.

Answer

repel an object with a positive charge.

Answer

attract the north pole of a magnet.

Answer

attract and object with a negative charge.

Question 24

Which of these is a physical change?

Accepted Answer

dissolving

Answer

tarnishing

Answer

sting

Answer

burning

Question 25

The switch in an electrical circuit

Accepted Answer

must be a conductor.

Answer

must be an insulator.

Answer

must be magnetic.

Answer

can be either an insulator or a conductor.

Question 26

How could you observe the tiny cells that make up a leaf?

Accepted Answer

with a microscope

Answer

with a hand lens

Answer

with eyes alone

Answer

with eyeglasses

Question 27

Which one is a physical change due to temperature?

Accepted Answer

evaporating

Answer

burning

Answer

dissolving

Answer

becoming magnetized

Question 28

Which of these clues can be a sign of either a physical or a chemical change?

Accepted Answer

bubble form in a substance

Answer

the way the smell of the substance changes

Answer

a new solid is formed

Answer

a new gas is formed

Physical Science GMAS Review 2023

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