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Physical Science Unit Review

Total questions: 33

Worksheet time: 17mins

Name
Class
Date
1.
What is the smallest unit of a chemical compound that still has the properties of that compound?
a)

A nucleus.

b)

A molecule

c)

An element.

d)

An atom.

2.
What is an element?
a)

A type of atom with the same number of protons.

b)

A type of atom with the same number of neutrons.

c)

A substance made of the same type of atom.

d)

A substance made of many types of atoms.

3.
What do we call the center region of an atom?
a)

The eye.

b)

The epicenter

c)

The nucleus.

d)

The center.

4.
Which part of the atom has a positive charge?
a)

The electron.

b)

The proton.

c)

The nucleus.

d)

The neutron.

5.
An atom is mostly made of ___.
a)

protons

b)

neutrons

c)

electrons

d)

empty space

6.
What term is used to describe the point at which a gas changes state and becomes a liquid?
a)

Condensation

b)

Evaporation

c)

Melting

d)

Freezing

7.
How long was Teddy gone before he realized he should return home?
a)

5 seconds

b)

45 seconds

c)

2 seconds

d)

10 seconds

8.
Marcus and Jacob competed in a bicycle race. Read the scenarios listed below and choose which one best matches the graph.
a)

Marcus gave Jacob a 10km head start.

b)

Marcus and Jacob finished the race at the same time

c)

Jacob didn’t need to bike as far as Marcus.

d)

Marcus and Jacob both biked 50km.

9.
When water evaporates, it is considered a ___.
a)

plasma

b)

solid

c)

liquid

d)

gas

10.
Subatomic particles with a negative charge, these are found circling the nucleus of the atom.
a)

Electrons

b)

Neurons

c)

Neutrons

d)

Protons

11.
___ doesn’t have a fixed shape or a fixed volume.
a)

A solid

b)

A liquid

c)

A gas

d)

Plasma

12.
Which container is most representative of a solid?
a)
A
b)
B
c)
C
d)
D
13.
What would cause water to change from a solid (ice) to a liquid?
a)

Decrease its temperature.

b)

Increase its temperature.

c)

Decrease its energy.

d)

Increase the attractive force between atoms.

14.
Which of the following describes the molecules in a liquid?
a)

Atoms are tightly packed together.

b)

Atoms are loosely packed and able to slide around.

c)

Lots of free space between molecules.

d)

At very high temperatures the atoms lose their electrons.

15.
A baseball player hits the baseball with his bat. The bat is transferring ___.
a)

static energy

b)

potential energy

c)

the energy of motion to the ball

d)

wave energy to the ball

16.
As a heavy metal ball rolls down a hill, it goes faster and faster. Which statement is true?
a)

The ball’s potential energy is changing to kinetic energy.

b)

The ball is gaining potential energy from the hill.

c)

The ball is rapidly losing kinetic energy as it rolls down the hill.

d)

The ball will continue gaining kinetic energy until it stops.

17.
Noah carried a skateboard up a hill and then rode the skateboard down the hill. When Noah reached the bottom of the hill, he rolled to a stop. When did Noah have the most potential energy?
a)

While carrying the skateboard up the hill.

b)

While standing on the skateboard at the top of the hill.

c)

While riding the skateboard down the hill.

d)

While standing on the skateboard at the bottom of the hill.

18.
Potential energy can exist because of the ___ of something.
a)

size

b)

location

c)

age

d)

motion

19.
At which point will the cannonball have the most potential energy?
a)

A

b)

B

c)

C

d)

D

20.
According to the graph, ___. (hint: the x-axis is labeled time and the y-axis is labeled distance)
a)

the car is stopped

b)

the car is traveling at a constant speed

c)

the car is speeding up

d)

the car is slowing down

21.
Gasoline and the food we eat both have potential or ___ energy.
a)

mechanical

b)

kinetic

c)

stored

d)

used

22.
Which object has the most kinetic energy?
a)

A feather dropped from 3 feet.

b)

A basketball sitting on the ground.

c)

A boy sitting at the top of a steep hill.

d)

A truck falling off a cliff.

23.
Bob rode his motorcycle to visit his grandfather. How far did he travel before stopping for lunch?
a)

2 hours

b)

1 hour

c)

75 miles

d)

125 miles

24.
Abigaile is riding her bike down the street at 15m/sec. If it takes her 60 seconds to get to the end of the street, then how long was the street?
a)

4 meters

b)

45m/sec

c)

900 meters

d)

75 meters

25.
Tiffany rode her bike to town and back again. How long did it take Tiffany to ride home?
a)

2 hours

b)

3 hours

c)

4 hours

d)

5 hours

26.

What happens to the kinetic energy of a car as it comes to a stop?

a)

It remains constant.

b)

It transforms into potential energy.

c)

It decreases.

d)

It increases.

27.

Which of the following best describes a gas?

a)

It has neither a fixed shape nor a fixed volume.

b)

It has a fixed shape but no fixed volume.

c)

It has no fixed shape but a fixed volume.

d)

It has a fixed shape and volume.

28.

What is the primary factor that determines the state of matter of a substance?

a)

Shape

b)

Color

c)

Weight

d)

Temperature

29.

Which of the following best describes the process of sublimation?

a)

Gas to liquid

b)

Solid to gas

c)

Liquid to gas

d)

Solid to liquid

30.

What is the primary reason a ball thrown upwards eventually falls back to the ground?

a)

Friction

b)

Air resistance

c)

Gravity

d)

Magnetic force

31.

What is the process called when a liquid turns into a solid?

a)

Freezing

b)

Condensation

c)

Evaporation

d)

Sublimation

32.

Which of the following best describes a solid?

a)

It has neither a fixed shape nor a fixed volume.

b)

It has no fixed shape but a fixed volume.

c)

It has a fixed shape but no fixed volume.

d)

It has a fixed shape and a fixed volume.

33.

What happens to the potential energy of an object as it is lifted higher off the ground?

a)

It transforms into kinetic energy.

b)

It increases.

c)

It remains constant.

d)

It decreases.