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WorksheetsPhysical Science GMAS Review 2023
Total questions: 28
Worksheet time: 14mins
Which part of a circuit starts and stops the flow of electric current?
battery
lightbulb
wire
switch
Which type of material DOES NOT allow electric current to flow through it?
an insulator
a magnet
a conductor
a metal
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
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
Electric current DOES NOT flow in
an open circuit
a closed circuit
an electromagnet
a complete circuit
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.
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.
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
Which material is a conductor?
wood
glass
rubber
aluminum
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
When a liquid evaporates,
it melts.
it freezes.
it becomes a gas.
it becomes a solid.
What happens when a liquid freezes?
A chemical change takes place.
A physical change takes place.
New substances form.
The mass of the liquid changes.
John changed the texture of a wooden box by rubbing it with sandpaper. What did John do to the box?
He changed the wood to a different substance.
He changed a physical property of the box.
He changed a chemical property of the box.
He made no change to the box.
Eric wants to study the pattern on a butterfly's wings a little more closely. Which tool would be BEST for him to use?
eyeglasses
a hand lens
a microscope
a mirror
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?
tip toward the bunch of bananas
tip toward the separate bananas
dip back and forth
stay level
Hannah has a stack of 20 blocks. The mass of each block is 100 grams. What is the mass of the stack?
200 grams
80 grams
2000 grams
120 grams
Which observation is MOST LIKELY evidence that a chemical change is taking place?
a material changes temperature after being cooled or heated.
Bubbles form when a liquid is heated.
A material changes temperature without being heated or cooled.
A solid changes shape when it is bent.
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?
the total mass of the oil and beaker
the mass of the oil
the mass of the beaker
the amount of space the oil and beaker take up
Which of these causes static electricity?
electrical circuits
electrons floating in the air
electrical outlets
electrons moving from one object to another
Which of these will cause a chemical change?
dissolving salt in water
boiling water that has salt dissolve in it
mixing vinegar and baking soda
mixing sand and iron filings
Which of these is a way to separate a mixture of sand, salt, and water?
Filter the salt from the sand and water, and then let the water evaporate.
Filter the sand from the salt and water, and then let the water evaportate.
Filter the sand and salt from the water, and then use a magnet to separate the salt from the sand.
Let the water evaporate, and then filter the sand from the salt.
Which of these is NOT a chemical property?
whether a substance burns
whether a substance rusts
whether a substance is a solid, a liquid, or gas
whether a substance reacts with oxygen
An object with a negative charge will
attract an object with a positive charge.
repel an object with a positive charge.
attract the north pole of a magnet.
attract and object with a negative charge.
Which of these is a physical change?
tarnishing
sting
burning
dissolving
The switch in an electrical circuit
must be an insulator.
must be magnetic.
must be a conductor.
can be either an insulator or a conductor.
How could you observe the tiny cells that make up a leaf?
with a hand lens
with eyes alone
with a microscope
with eyeglasses
Which one is a physical change due to temperature?
evaporating
burning
dissolving
becoming magnetized
Which of these clues can be a sign of either a physical or a chemical change?
the way the smell of the substance changes
bubble form in a substance
a new solid is formed
a new gas is formed
