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Y8 Energy revision

Total questions: 102

Worksheet time: 57mins

Name
Class
Date
1.

Sound is produced when an object...

a)

Moves

b)

Makes a noise

c)

Vibrates

d)

Falls

2.

When something vibrates, it passes the vibration to...

a)

its surrounding environment

b)

your ears

c)

your hands

d)

itself

3.

Sound energy travels in...

a)

Longitudinal waves

b)

Transverse waves

4.

When objects vibrate, they create regions of space in which the air particles are bunched together called...

a)

Conductions

b)

Compressions

c)

Rarefactions

d)

Close vibrations

5.

When objects vibrate, they create regions of space in which the air particles are spread out called...

a)

Conductions

b)

Compressions

c)

Rarefactions

d)

Loose vibrations

6.

In a longitudinal wave, the particles move...

a)

In an up and down motion

b)

In the same direction that the wave is moving

7.

True or False:

Sound energy needs a medium (solid, liquid or gas) to travel through.

a)

True

b)

False

8.

True or False:

Sound energy can travel through outer space (a vacuum).

a)

True

b)

False

9.

Reorder the following:

Which medium does sound travel further through, highest to lowest distance.

a)

Solids

b)

Liquids

c)

Gases

1)
2)
3)
10.

Why does sound travel a longer distance through solids?

a)

Because the particles are loosely bonded

b)

Because the particles are spread out

c)

Because the particles are tightly packed together

11.

Why does sound travel the shortest distance through gases?

a)

Because the particles are loosely bonded

b)

Because the particles are spread out

c)

Because the particles are tightly packed together

12.

Which two materials will absorb sound?

a)

Wooden or tiled floors

b)

Cushions/pillows

c)

Fabric curtains

d)

Glass

13.

What type of noise would this sound wave make?

a)

Loud noise

b)

Quiet noise

c)

High pitch noise

d)

Low pitch noise

14.

What type of noise would this sound wave make?

a)

Loud noise

b)

Quiet noise

c)

High pitch noise

d)

Low pitch noise

15.

What type of noise would this sound wave make?

a)

Loud noise

b)

Quiet noise

c)

High pitch noise

d)

Low pitch noise

16.

Elephants can hear a range of frequencies lower than our own hearing range called...

a)

Infrasound frequencies

b)

Ultrasound frequencies

17.

Dogs can hear a range of frequencies higher than our own hearing range called...

a)

Infrasound frequencies

b)

Ultrasound frequencies

18.

What is Energy?

a)

The ability to do anything

b)

The ability to cause change or do work

c)

The investigation of nature

d)

A fact of life

19.

What is an example of kinetic energy?

a)

An apple in a tree

b)

A bouncy ball on the table

c)

A car driving on the highway

d)

A stretched out rubber band

20.

What is an example of potential energy?

a)

A bowling ball rolling down a lane

b)

A car parked in a lot

c)

An apple falling from a tree

d)

Sunlight heating up the atmosphere

21.

What is an example of potential energy?

a)

A bowling ball rolling down a lane

b)

A car parked in a lot

c)

An apple falling from a tree

d)

Sunlight heating up the atmosphere

22.

Energy cannot be created or destroyed.

a)

True

b)

False

23.

What is the definition of friction?

a)

A force that resists the sliding of two objects that are touching

b)

A force that increases sliding between two objects

c)

The change from potential to kinetic energy

d)

A transformation from radiant to mechanical energy

24.

Which of the following describes an energy transformation?

a)

When energy is lost due to friction

b)

An electric motor moving a car

c)

A solar panel powering a home

d)

A television projecting a show

25.

What transformation occurs in a toaster?

a)

Electrical to light

b)

Electrical to thermal

c)

Thermal to mechanical

d)

Solar to electrical

26.

What type of energy transformation occurs when a piece of wood burns?

a)

Electrical energy is released as radiant energy

b)

Stored chemical energy is released as thermal energy

c)

Mechanical energy is stored as chemical energy

d)

No transformation occurs

27.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
28.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
29.

Which of the following is an example of a change of kinetic energy into gravitational potential energy?

a)
a person parachuting out of a plane
b)
a car racing around an oval track
c)
a person skiing down a hill
d)
a person walking up a hill
30.

Which of the following is an example of a change of kinetic energy into gravitational potential energy?

a)
a person parachuting out of a plane
b)
a car racing around an oval track
c)
a person skiing down a hill
d)
a person walking up a hill
31.
What would have the greatest kinetic energy?
a)
A car driving down a hill.
b)
A person running down a hill. 
c)
A ball rolling down a hill. 
32.
Food has _________ energy. 
a)
Potential 
b)
Kinetic 
c)
None of the above 
d)
All of the above 
33.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
34.

Which object shows an energy transformation from electrical to mechanical?

a)
b)
c)
d)
35.

What sort of energy transformation is this?

a)

Chemical to Thermal

b)

Thermal to chemical

c)

Kinetic to potential

d)

Open to closed

36.

Energy is ​ (a)   and within everything. It is the ability to do ​ (b)   and make things ​ (c)  

Choose from the below words
everywhere
work
happen
37.

Kinetic energy and potential energy are two types of ​ (a)   ​

Choose from the below words
energy
physics
science
chemistry
egg drop
38.

______ energy is that associated with movement

a)

kinetic

b)

potential

39.

______ energy is stored energy

a)

Kinetic

b)

Potential

c)

Light

d)

Heat

40.

Define energy...

a)

Energy explains how things get hot or cold.

b)

energy is how people move around the world.

c)

energy is an experience.

d)

Energy is the ability to do work and make things happen.

41.

A penguin pushes a penguin into the water, does this count as work?

a)

Yes

b)

No

c)

Poor penguin

42.

What unit is used to measure energy?

a)

Joules

b)

Watts

c)

Newtons

d)

Celsius

43.

Which form of energy is possessed by a stretched rubber band?

a)

Kinetic

b)

Potential

c)

Thermal

d)

Electrical

44.

What is the primary source of energy for the Earth's climate system?

a)

Wind energy

b)

Geothermal energy

c)

Solar energy

d)

Nuclear energy

45.

What type of energy conversion occurs in a battery?

a)

Chemical to Electrical

b)

Kinetic to Potential

c)

Thermal to Electrical

d)

Electrical to Mechanical

46.

Which of the following is a renewable source of energy?

a)

Coal

b)

Natural Gas

c)

Solar

d)

Nuclear

47.

What type of energy is primarily used by plants to perform photosynthesis?

a)

Kinetic energy

b)

Thermal energy

c)

Solar energy

d)

Electrical energy

48.

Heat transfer within OR between materials 

Key idea: touching

Ex: The spoon is warming up from the pot because they are touching

a)

Conduction

b)

Radiation

c)

Heat

d)

Convection

49.

Heat transfer by movement 

Key idea:  hot rises, cool fills the space

Ex: The heat goes in a loop within the soup pot

a)

Insulator

b)

Heat conductor

c)

Convection

d)

Temperature

50.

Transfer of heat through

space

Key idea: NO touching

Ex: Sunlight warms earth's surface 

a)

Insulator

b)

Radiation

c)

Heat

d)

Convection

51.

Transfer of thermal energy 

(heat always moves from hot to cold)

Ex: Hot to Cold

a)

Temperature

b)

Heat Conductor

c)

Conduction

d)

Heat

52.

_Measurement  of average kinetic energy (energy of motion)

Ex: The hotter something is, the faster the molecules move

a)

Temperature

b)

Heat

c)

Condcution

d)

Insulator

53.

Material that 

slows down the process of heat transfer

Ex: The wool sock

a)

Heat

b)

Insulator

c)

Radiation

d)

Heat Temperature

54.

Material that allows heat to transfer easily

Ex: Metal Spoon

a)

Radiation

b)

Convection

c)

Heat conductor

d)

Temperature

55.

Fill in the blanks.

An iron sheet will _________ when heated and will ________ when left to cool.

a)

expand, contract

b)

contract, expand

c)

gains heat, loses heat

d)

loses heat, gains heat

56.

Fill in the blanks.

Copper has a higher coefficient of thermal expansion than iron. If a copper sheet is heated, it will ________ more than _________.

a)

contract, iron sheet

b)

expand, iron sheet

c)

contract, copper sheet

d)

expand, copper sheet

57.

Which of the following are the three states of substances ?

a)

Liquid

b)

Solid

c)

Vapor

d)

Gas

58.

Substances can change in state when heated. When a solid turns into a liquid, this is called ?

a)

Fusion

b)

Vaporization

c)

Sublimation

d)

Condensation

59.
The law of conservation of energy states that when one form of energy is converted into another,
a)
energy is destroyed in the process
b)
no energy is destroyed in the process
c)
energy is created in the process
d)
some amount of energy cannot be accounted for
60.
In energy transformations, "wasted energy" usually takes what form?
a)
heat
b)
chemical energy
c)
light
d)
sound waves
61.

Efficiency is calculated by useful energy output divided by total energy input, expressed as a percentage

a)

False

b)

True

62.

Solar photovoltaic panels on homes and other building areas create ?

a)

Heat energy

b)

Polaroids

c)

Electrical energy

63.
The law of conservation of energy states that when one form of energy is converted into another,
a)
energy is destroyed in the process
b)
no energy is destroyed in the process
c)
energy is created in the process
d)
some amount of energy cannot be accounted for
64.

Heat energy is also called ______ energy.

a)

chemical

b)

electrical

c)

mechanical

d)

thermal

65.
The process of energy changing from one form into another
a)
efficency
b)
law of conservation of energy
c)
energy transformation
d)
thermal energy
66.
A material that transfers energy easily.
a)
insulator
b)
heat
c)
conduction
d)
conductor
67.
True or false: as you move along the spectrum, radio to gamma waves, the wavelengths decrease in size (get smaller)
a)
true
b)
false
68.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
69.
Select the correct order of waves on the EMS from the longest wavelength to the shortest wavelength
a)
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
b)
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
c)
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
d)
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
70.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
71.
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy
a)
Radio waves
b)
Ultraviolet Rays
c)
Gamma Rays
d)
X-rays
72.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
73.
How are electromagnetic waves different from other waves? 
a)
They have very short wavelengths 
b)
They transmit energy instead of matter 
c)
They can travel through empty space
d)
They can change direction by reflection 
74.
Which of the following electromagnetic waves has the lowest energy?
a)
gamma ray
b)
infrared wave
c)
visible light wave
d)
microwave
75.
As the frequency of an electromagnetic wave increases, the amount of energy in that wave...
a)
increases.
b)
decreases.
c)
stays the same.
76.
High frequency waves have _________ wavelengths.
a)
varying
b)
long
c)
the same
d)
short
77.
The distance between two crests or two troughs of a wave is called:
a)
frequency
b)
amplitud
c)
wavelength
d)
hertz
78.
How much of the electromagnetic spectrum is visible?
a)
All of it
b)
None of it
c)
Most of it
d)
Only a small part
79.
True or false: as you move along the spectrum, radio to gamma waves, the wavelengths decrease in size (get smaller)
a)
true
b)
false
80.
What is a repeating pattern that can transfer energy?
a)
Motif
b)
Prism
c)
Radio
d)
Wave
81.
What is the distance from the peak of one wave to the next peak?
a)
Amplitude
b)
Frequency
c)
Period
d)
Wavelength
82.
What is the height of a wave from its resting point?
a)
Amplitude
b)
Frequency
c)
Period
d)
Wavelength
83.
What is the number of waves that pass a point in one second?
a)
Amplitude
b)
Frequency
c)
Period
d)
Wavelength
84.
These waves make water molecules vibrate and warm up.
a)
Gamma
b)
Microwaves
c)
Radio
d)
Ultraviolet
85.
These high-energy waves are given off by radioactive materials.
a)
Gamma
b)
Microwaves
c)
Radio
d)
Ultraviolet
86.
These waves are used to send signals, including WiFi and text messages.
a)
Gamma
b)
Microwaves
c)
Radio
d)
Ultraviolet
87.
These waves from the sun cause sunburn.
a)
Gamma
b)
Microwaves
c)
Radio
d)
Ultraviolet
88.
Increasing the amplitude of a wave, _________ the wave's energy.
a)
increases
b)
decreases
c)
does not change
89.

Reflection is when light...

a)

Bends

b)

Bounces

c)

Absorbs

d)

transmits

90.

Refraction is when light...

a)

Bounces

b)

Transmits

c)

Bends

d)

Absorbs

91.

___________ travels in a straight line until something changes its path

a)

Medium

b)

Refract

c)

Reflect

d)

Light

92.

What is happening in this picture?

a)

Reflection

b)

Refraction

93.

An object that allows light to go through ________ light.

a)

Absorbs

b)

Transmits

c)

Reflect

d)

Refract

94.

An object that absorbs light is called a

a)

Refractor

b)

Reflector

c)

Transmitter

d)

Medium

95.

Which of the following best models how light is reflected?

a)

An arrow hitting a target

b)

A ball bouncing off a wall

c)

An apple falling from a tree

d)

A marble rolling down a ramp

96.

Light traveling through the air moves in a straight line. An object viewed through water looks different because light rays that travel through water are –

a)

bent.

b)

bounced.

c)

reflected.

d)

absorbed.

97.

What happens when light hits a shiny or smooth surface?

a)

It disappears.

b)

It is refracted.

c)

It is absorbed.

d)

It is reflected.

98.

What is the angle of incidence?

a)

The angle at which light bends in water.

b)

The angle at which light hits a surface.

c)

The angle at which light is absorbed by an object.

d)

The angle at which light bounces off a surface.

99.

When you look into a mirror, what is happening to the light?

a)

It is increasing in wavelengths.

b)

It is being refracted.

c)

It is being absorbed.

d)

It is being reflected.

100.

What is the angle of reflection equal to?

a)

The angle of refraction

b)

The angle of incidence

c)

The angle of absorption

d)

The angle of light

101.
According to the Law of reflection, a light ray striking a mirror
a)
continues moving through the mirror in the same direction
b)
moves into the mirror at a slightly different angle
c)
bounces off the mirror toward the direction it came from
d)
bounces off the mirror at the same angle it hits.
102.

A beam of light bends when it passes from air into water, and more when it passes from water into glass. What can you conclude from this fact?

a)

Air is denser than glass

b)

Water is denser than glass

c)

Glass is denser than water

d)

Air is denser than water

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