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2nd quarter revision sheet grade 4 2024

Total questions: 168

Worksheet time: 4hrs 22mins

Name
Class
Date
1.
What type of potential energy is shown in the image?
a)
chemical
b)
gravitational
c)
elastic
2.
What type of potential energy is shown in the image?
a)
elastic
b)
gravitational
c)
chemical
3.
Energy that is stored in the nucleus of an atom is called _________ energy.
a)
Chemical
b)
Nuclear
c)
Gravitational
d)
Elastic
4.
Which of these is not a source of chemical energy?
a)
Spaghetti
b)
The Sun
c)
Battery
d)
Petroleum
5.
What type of energy can chemical transform into?
a)
Heat
b)
Light
c)
Electrical
d)
All of the above
6.
When you lit a matchstick, the chemical bonds in the top of the match are
a)
Combined with oxygen
b)
Stay the same
c)
Broken
7.
When plants convert the sun's energy into food, which type of energy is it?
a)
kinetic
b)
chemical
c)
thermal
d)
radiant
8.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
9.

The batteries in a flashlight contain _____energy that is converted into_______energy and _______energy when its on.

a)

Electrical

b)

Solar

c)

Chemical

d)

Mechanical

e)

Light

10.

A car converts the ______energy in gasoline into _______when it moves.

a)

thermal

b)

Electrical

c)

chemical

d)

Mechanical

e)

Solar

11.

The logs contain_______energy and is converted into________energy

a)

Solar

b)

Electrical

c)

Chemical

d)

Electrical

e)

Thermal

12.

What has to happen before chemical energy can be seen?

a)

Electrical shock

b)

chemical spill

c)

chemical reaction

d)

heat energy

13.

Which is an example of a chemical reaction?

a)

burning wood

b)

stretching a rubberband

c)

holding a ball up high

d)

rolling a car down a ramp

14.

Examples of stored chemical energy are ______________________.

a)

coal

b)

oil

c)

natural gas

d)

all of these

15.

smallest unit of any object

a)

atom

b)

molecule

c)

bond

d)

cell

16.

When we burn coal, the chemical energy is converted into...

a)

light & heat.

b)

energy.

c)

solar energy.

d)

calories.

17.

When we eat food, the chemical energy is converted into...

a)

light & heat.

b)

other forms of energy that are useful for our cells.

c)

solar energy.

d)

calories.

18.

Chemical energy is important for us...is it true or false?

a)

TRUE

b)

FALSE

c)

I don't know...

19.

True/False: energy is required to break chemical bonds.

a)

True

b)

False

20.

True/False: In a chemical reaction, old bonds break and new bonds form.

a)

True

b)

False

21.

what is chemical energy?

a)

energy stored in the bonds between particles

b)

a type of energy kinetic energy

22.

The energy that holds the particles together and it can be found in food:

a)

Nuclear energy

b)

Chemical energy

c)

Sound energy

23.

Reaction in the nucleus of an atom

a)

Electron

b)

Nuclear Reaction

c)

Potential Energy

d)

Kinetic Energy

24.

Nuclear energy comes from splitting a nucleus of an atom

a)

True

b)

False

25.

Nuclear energy doesn’t depend on fossil fuels

a)

True

b)

False

26.
Energy is stored in the ___ of an atom.
a)
proton
b)
neutron
c)
electron cloud
d)
nucleus
27.

The total kinetic energy of all the particles in a matter is called —————

a)

Total Energy

b)

Thermal Energy

c)

Particle Energy

28.

Thermal energy is transferred from————-

a)

A cooler object to a hotter one

b)

A hotter object to a cooler one

29.

paricles with more kinetic energy move ———- than particles with less kinetic energy

a)

Lower

b)

Faster

c)

Higher

d)

Slower

30.

What are the two main forms of energy?

a)

Kinetic and potential energy

b)

kinetic and electricity

c)

Potential energy and wind energy

d)

Potential energy and electricity

31.

Generators transform kinetic energy into:

a)

Running water

b)

Potential energy

c)

Electricity

d)

Wind energy

32.

When particles in matter move, they create __________.

a)

a thermometer

b)

frozen energy

c)

thermal energy

d)

water

33.

The energy of moving particles is called _____.

a)

sound energy

b)

heat or thermal energy

c)

light energy

d)

mechanical energy

34.

When particles are heated they begin to ____.

a)

move faster

b)

mover slower

c)

move up

d)

jump out of the pot

35.

A large amount of matter needs ______ thermal energy to warm up than a small amount of matter.

a)

less

b)

the same amount of

c)

more

d)

no

36.

Thermal energy comes from ________________.

a)

how hot something is

b)

the movement of particles

c)

the flow of electrons

37.

If the molecules in an object move faster, the object becomes _______.

a)

bigger

b)

colder

c)

hotter

38.

Which one of the following is not a source of thermal energy?

a)

sound energy

b)

chemical energy

c)

electrical energy

39.

The energy given off by the sun

a)

solar energy

b)

heat

c)

fuel

d)

conduction

40.

Air temperature rises when the particles in the air move

a)

Faster

b)

Slower

41.

The particles in water move faster when the water is

a)

frozen

b)

boiling

c)

room temperature

42.

The particles in water move slowest when the water is

a)

boiling

b)

room temperature

c)

frozen

43.
A device that makes electricity by using chemical reactions, stores energy until it is needed
a)
circuit
b)
battery
c)
insulator
d)
copper wire
44.

________________ is a form of kinetic energy.

a)

Light

b)

Electricity

c)

chemical

45.

The movement of which particle is necessary for electricity?

a)

Electrons

b)

Protons

c)

Neutrons

d)

Nucleus

46.

Electrons have what type of charge?

a)

Postive

b)

Negative

c)

Neutral

47.

What kind of energy makes a hair dryer, television, computer, and refrigerator works?

a)

thermal

b)

electrical

c)

chemical

d)

mechanical

48.

Which of the following is NOT an example of electricity turning into another form of energy?

a)

radio

b)

toaster

c)

windmill

d)

light bulb

49.
Vibrating vocal chords causes sound energy when a person speaks.
a)
True
b)
False
50.
What is vibration?
a)
how loud a sound is
b)
the back and forth movement of matter
c)
how high or low a sound is
d)
the loudness or softness of a sound
51.
All sounds are made by ____ objects.
a)
warm
b)
cold
c)
reflecting
d)
vibrating
52.
Sound is a kind of energy that travels in ___.
a)
waves
b)
currents
c)
wires
d)
groups
53.

Which kind of kinetic energy is represented by the picture?

a)

magnetic

b)

sound

c)

thermal

54.

The center of an atom is called the ______________.

a)

electron

b)

nucleus

c)

liquid

d)

neutron

55.

Nuclear energy is released through a _____________________.

a)

chemical reaction

b)

physical change

c)

nuclear reaction

d)

chemical change

56.

Objects that are very ________ have a lot of thermal energy.

a)

hot

b)

cold

c)

big

d)

small

57.

Energy of electric charges.

a)

mechanical energy

b)

electrical energy

c)

thermal energy

d)

electromagnetic radiation

58.

Which types of energy are only potential energy?

a)

thermal

b)

electrical

c)

chemical

59.

What is not true about electric energy:

a)

electrons move

b)

moving electrons make an electric current

c)

your brain and nerves use electric energy

d)

it is a kind of potential energy

60.

When you play music on your phone, electricity turns into ___________.

a)

work

b)

heat

c)

sound

61.

Also known as heat energy

a)

thermal

b)

thermos

c)

electrical

d)

electricity

62.

We receive ________ and heat energy from the Sun.

a)

sound

b)

mechanical

c)

light

d)

kinetic

63.

Vibrations produce _______ energy.

a)

chemical

b)

sound

c)

potential

d)

light

64.

Energy released when atoms split or join together is called

a)

Gravitational

b)

Nuclear

c)

Elastic

d)

Chemical

65.

Energy that is produced when something moves back and forth (vibrates) is called:

a)

thermal energy

b)

light energy

c)

sound energy

66.

Energy you can see is called:

a)

light energy

b)

thermal energy

c)

sound energy

67.

Energy that comes from electric currents is called:

a)

light energy

b)

electrical energy

c)

sound energy

68.

The amount of heat in an object is called

a)

chemical energy

b)

thermal energy

c)

sound energy

69.

T or F: Wind and water turbines cannot turn kinetic energy into electrical energy.

a)

True

b)

False

70.
How does sound travel?
a)
in only one direction
b)
in waves
c)
it doesn't travel
71.
What causes sound?
a)
when the pitch is high
b)
when something vibrates
c)
when the volume is loud
72.
My vocal cords ___________ when air passes through them.  This allows me to speak.
a)
stop
b)
vibrate
c)
close
d)
open
73.
How does light travel?
a)
in a wavy path
b)
in a straight path
c)
in a zig zag path
74.

The different forms of radiations all together are known as

a)

electrons

b)

electromagnetic spectrum

75.

A kind of energy that travels in waves that you hear

a)

Sound

b)

Crest

c)

Light

d)

Pitch

76.

Each low point of a sound wave

a)

crest

b)

frequency

c)

dip

77.

Each high point of a sound wave

a)

wavelength

b)

peak

c)

frequency

78.

Sound waves travel fastest through a ______

a)

solid

b)

liquid

c)

gas

79.

Sound waves move faster when the medium is

a)

warm

b)

cold

80.

Sound waves move slower when the medium is

a)

warm

b)

cold

81.
The ______ of a sound depends on the medium through which it's moving.
a)
pitch
b)
vibration
c)
speed
d)
sound
82.
Matter that carries sound waves is called a _________
a)
low
b)
high
c)
medium
d)
surface
83.
Sound travels through the air as waves.
a)
True
b)
False
84.
Why is sound able to travel faster through a solid than a gas?
a)
Gas molecules are packed tightly.
b)
Sound does not travel faster through a solid than a gas.
c)
Solid molecules are packed tightly.
85.
Sound does not travel in space because
a)
Space is too far away.
b)
There is no matter in space.
c)
Space has planets.
86.
You stand outside a room that has the doors and windows closed. Why can you still hear sounds made inside the room?
a)
Vibrations are absorbed in the doors and windows
b)
Vibrations travel through the door and the window
87.
Why do we see lightning before we hear the thunder?
a)
Light travels faster than sound
b)

they travel at the same speed

88.

Which of these is NOT a medium?

a)

light

b)

air

c)

wood

d)

metal

89.

How can I produce a sound?

a)

heating an object

b)

hitting an object

c)

moving the mouth

d)

looking an object

90.
Which of the following is an example of sound traveling through a solid?
a)
When you hear people in another room
b)
When you hear things underwater
c)
Sound cannot travel through solids
91.

When people speak their ________ vibrate.

a)

ear drums

b)

vocal chords

c)

ears

d)

tongue

92.
An object that does not vibrate cannot produce
a)
sound
b)
light
c)
heat
d)
electricity
93.
Sound is a form of? 
a)
energy
b)
pitch
c)
volume
94.
Sound travels FASTEST through which of these materials?
a)
Air
b)
Empty space
c)
Metal
d)
Water
95.

Sound needs a medium in order to travel.

a)

True

b)

False

96.

A sound wave looks most like:

a)

a long rope

b)

a coiled spring

c)

a short rope

97.

Sound waves

a)

don't travel

b)

travel in all directions

c)

travel in only one direction

d)

travel only north

98.

A place where no sound exists is

a)

in the air

b)

space

c)

under water

d)

all of the above

99.

Energy that can travel through space and medium

a)

energy

b)

light energy

c)

shadow

d)

reflect

100.

Can a glass produce light energy?

a)

yes

b)

no

101.

Can a fire give off light energy?

a)

yes

b)

no

102.

Can a flashlight give off light energy?

a)

yes

b)

no

103.

Can a newspaper give off light energy?

a)

yes

b)

no

104.

Can the sun give off light energy?

a)

yes

b)

no

105.
Light is ___________ energy. 
a)
sound
b)
nuclear 
c)
radiant 
d)
liquid
106.
Light can move though _______________.
a)
water
b)
air
c)
space
d)
all of the above 
107.
An example of natural light are ________.
a)
florescent light bulbs  
b)
stars 
c)
lasers 
108.

Another word for solar cells is-

a)

cells

b)

plant cell

c)

Photovoltaic cells

109.

In the word "photovoltaic" the word "photo" means-

a)

light

b)

sun

c)

current

d)

energy

110.

In the word photovoltaic, the word "voltaic" means-

a)

electricty

b)

energy

c)

thermal heat

d)

sun rays

111.

It converts light into electricity.

a)

solar cell

b)

water cell

c)

light cell

d)

electric cell

112.

What particles from the sun help to generate power from solar cells?

a)

Electrons

b)

Photons

c)

Neutrons

113.

Waves transfer _____ , not matter.

a)

time

b)

water

c)

energy

d)

space

114.

Do waves transfer ENERGY or MATTER?

a)

Energy

b)

Matter

115.

What type of wave is sound?

a)

transverse

b)

longitudinal

116.
How would you describe the movement of a longitudinal wave?
a)
Up and down
b)
Back and forth
c)
In zigzags
d)
Linear
117.
Sound is an example of which type of wave?
a)
Transverse
b)
Longitudinal
c)
Both
d)
Neither
118.
Which wave can only travel using a medium?
a)
Transverse
b)
Longitudinal
c)
Both
119.
What are the parts of a longitudinal wave?
a)
Compressions and rarefactions
b)
Compressions and crests
120.
Which wave is pictured?
a)
Transverse
b)
Longitudinal
c)
Both
d)
Neither
121.
Compression means.....
a)
Far apart
b)
Close together
122.
Rarefaction means.....
a)
Far apart
b)
Close together
c)
Reflect
123.

Property of longitudinal wave where particles are close together is called ___________?

a)

Wavelength

b)

Rarefaction

c)

Compression

124.

The place in a longitudinal wave where particles are far from each other is called_______________?

a)

Compression

b)

Rarefaction

c)

Amplitude

125.

What is 'current electricity'?

a)

A current passing through material.

b)

A current.

c)

The flow of electrical charge through a material.

126.

its save to touch an electric machine with wet hand , while its connected to electric current

a)

true

b)

false

127.

Material that allows electric current to flow through easily.

a)

electromagnetic field

b)

conductor

c)

open circuit

d)

electric current

128.
Prevents electric current from flowing.
a)
open circuit
b)
conductor
c)
electricity
d)
closed circuit
129.
Material that PREVENTS electric current or heat from flowing.
a)
electromagnetic field
b)
electric current
c)
insulator
130.
a)
insulator
b)
open circuit
c)
electric current
d)
closed circuit
131.

Which of the following is an insulator?

a)

aluminum foil

b)

copper penny

c)

teddy bear

d)

coin

132.

The flow of electric charge in a circuit is called _______.

a)

Heat

b)

Sound

c)

Electric Current

d)

Magnetic

133.

If the light is on, the circuit is _________________.

a)

closed

b)

open

134.

Electric wires are covered with plastic because

a)

It is a poor insulator of electricity

b)

It is a good insulator of electricity

c)

It is a metal

d)

it is a good conductor of electricity

135.

This circuit called

a)

An open circuit

b)

A closed circuit

c)

A lemon circuit

d)

A potato circuit

136.

The inner part of the connecting wire is

a)

Plastic

b)

Copper

c)

Wood

d)

Water

137.

We can connect all the circuit components by using

a)

Bulb

b)

Switch

c)

Cell

d)

Wires

138.

............ is a tool that closes and opens the circuit

a)

electric wire

b)

electric circuit

c)

battery

d)

switch

139.

All the following work by the current electricity except…………………….

a)

mixer

b)

television

c)

fan

d)

comb

140.

The source of electric current in the electric circuit is...........

a)

lamp

b)

electric wire

c)

battery

d)

switch

141.

......................... is the electric charges that flow through connecting wires.

a)

Static electricity

b)

current electricity

142.

The washing machine and the electric heater work by …………………………

a)

Static electricity

b)

current electricity

143.
____________ allows electricity to flow.
a)
A conductor
b)
An insulator
c)
A magnet
144.
____________ stops the flow of electricity.
a)
A conductor
b)
An insulator
c)
A magnet
145.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
146.
When the switch is closed, the light
a)
comes on
b)
stays off
c)
burns out
147.
Two batteries in a circuit make the lights in the circuit brighter than one battery.
a)
true
b)
false
148.
If the lights are on, the circuit is
a)
closed
b)
open
149.
If the lights are off, the circuit is
a)
closed
b)
open
150.
Two types of circuits are
a)
parallel and magnetic
b)
electromagnetic and series
c)
series and parallel
151.
An example of a parallel circuit is
a)
the wiring in a house
b)
a flashlight
c)
a single circular path
152.
Rubber is a good insulator.
a)

true

b)
false
153.
Copper is a good conductor of electricity.
a)
true
b)
false
154.
You shouldn't stand in an open field during a lightning storm.
a)
true
b)
false
155.

What are the parts of a series circuit?

a)

the energy source and wires

b)

the switch and resistors.

c)

energy source, switch, resistor and wire

d)

energy source, light bulb, conductor and transistor

156.

What is an example of a resistor?

a)

a switch

b)

a battery

c)

the wires in a circuit

d)

A light bulb

157.

In a parallel circuit, there are multiple............

a)

resistors

b)

switches

c)

energy sources

d)

transistors

158.

Which of the following is a parallel circuit?

a)
b)
159.

Which of the following is a series circuit?

a)
b)
160.

Which has a higher resistance?

a)

Conductors

b)

Insulators

161.
What supplies the energy in an electric circuit?
a)
light bulb
b)
conductor
c)
wire
d)
battery
162.
The image on the left is a 
a)
series circuit
b)
parallel circuit
c)
a weird circuit
163.
Something that uses some of the electricity in a circuit is called a
a)
battery
b)
light bulb
c)
fan
d)
resistor
164.
Electricity flows from which side of the battery?
a)
negative
b)
positive
c)
I have no idea
165.
Electrical energy can make heat energy. 
a)
True
b)
False
166.

Look at the diagram. What is the term for "B"?

a)

Wire

b)

Switch

c)

Resistor

d)

Voltage source/Battery

167.

Look at the diagram. What is the term for "C"?

a)

Wire

b)

Switch

c)

Resistor/lightbulb

d)

Battery

168.

Why is electrical wiring usually made from copper?

a)

Because copper is shiny

b)

Because copper conducts electricity

c)

Because copper is not magnetic

d)

Because copper insulate electricity

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