Free Printable Yr 8 big energy quiz

1.

Potential energy is...

a)

energy in motion

b)

stored energy

2.

What two factors affect an object's potential energy?

a)

area and volume

b)

area and height

c)

mass and height

d)

mass and velocity

3.

The least amount of potential energy is at

a)

a

b)

b

c)

c

d)

d

4.

The most potential energy is at

a)

a

b)

b

c)

c

d)

d

5.

Where would a person have to be located to have the minimum potential energy?

a)

up on the roof

b)

down in the basement

c)

in the middle

d)

outside

6.

Where would a person have to be located to have the maximum potential energy?

a)

up on the roof

b)

down in the basement

c)

in the middle

d)

outside

7.

Which object has more gravitational potential energy?

a)

the watch

b)

the pen

c)

the camera

d)

the mug

8.

When a pendulum swings, at which point is potential energy at its greatest?

a)

1

b)

2

c)

3

d)

4

9.

Which object will have the largest value for its potential energy?

a)

b)

c)

d)

10.

A natural resource that can be replaced at the same rate at which it is consumed.

a)

Nonrenewable

b)

Renewable

c)

Inexhaustable

11.

A resource that forms much slower than it is consumed, such as fossil fuel.

a)

Nonrenewable

b)

Renewable

c)

Inexhaustable

12.

A nonrenewable resource formed from the buried remains of plants and animals that lived long ago.

a)

Geothermal Energy

b)

Hydroelectric Energy

c)

Fossil Fuel

d)

Nuclear Energy

13.

A nonrenewable resource that is formed when energy is released from the nuclei of atoms that are split or combined.

a)

Geothermal Energy

b)

Hydroelectric Energy

c)

Fossil Fuel

d)

Nuclear Energy

14.

The splitting of an atomic nucleus to release energy.

a)

Fusion

b)

Fission

15.

The process of fusing two atom nuclei together to create energy. This action happens naturally in the sun.

a)

Fusion

b)

Fission

16.

Petroleum

a)

Renewable Energy Resource

b)

Nonrenewable Energy Resource

17.

Select all which are action energy

a)

heat

b)

light

c)

sound

d)

elastic

e)

electric

18.

Select all which are potential energy

a)

kinetic

b)

electrical

c)

gravitational

d)

nuclear

e)

heat

19.

The law of conservation of energy is:

a)

Energy can be created or destroyed

b)

Energy cannot be created or destroyed

c)

Energy can be used up and created

d)

Energy is always changing

20.

chemical energy is...

a)

stored in springs

b)

stored above the ground

c)

stored in food

d)

stored in batteries

e)

stored in a stretched rubber band

21.

True or false - the total amount of energy in the universe is always changing

a)

true

b)

false

22.

wasted energy is...

a)

energy that goes away and is destroyed

b)

energy that we use

c)

energy that is not transformed into a useful form

d)

the extra energy used when you leave the lights on

23.

The type of energy stored in a stretched spring is....

a)

electrical energy

b)

heat energy

c)

kinetic energy

d)

elastic energy

e)

sound energy

24.

They type of energy stored in a ball lifted above your head is...

a)

action energy

b)

kinetic energy

c)

gravitational energy

d)

heat energy

e)

chemical energy

25.

Useful energy is...

(select all that are correct)

a)

energy for operating a device

b)

energy that does something

c)

heat and light

d)

energy that does something useful

e)

energy that does not do anything useful

26.

Select all types of energy involved in jumping on a trampoline

a)

elastic

b)

nuclear

c)

kinetic

d)

gravitational

e)

light

27.

What is the energy stored in food?

a)

heat

b)

light

c)

electrical

d)

chemical

e)

kinetic

28.

You run an experiment about the period of a pendulum. Select reasonable independent variables

a)

Mass of the bob

b)

Length of the string

c)

The time taken for a full string

d)

The angle of release

e)

The height off the ground (floor vs desk

29.

The energy transformation moving from the top to the bottom of a roller coaster is...

a)

Kinetic (potential energy) -> Gravitational (action energy)

b)

Kinetic (action energy) -> Gravitational (kinetic energy)

c)

Gravitational (action energy) -> Kinetic (potential energy)

d)

Gravitational (potential energy) -> Kinetic (action energy)

30.

The energy transformation when burning a potato chip is...

a)

heat energy (potential energy) $\rightarrow$ chemical energy (action energy) + light energy (action energy)

b)

chemical energy (potential energy) $\rightarrow$ heat (action energy) + light (action energy)

c)

chemical energy (action energy) $\rightarrow$ heat (action energy) + light (action energy)

d)

heat energy (potential energy) $\rightarrow$ light (action energy)

31.

The energy transformation in a pendulum is...

a)

gravitational -> kinetic

b)

kinetic -> gravitational

c)

kinetic -> heat

d)

gravitational -> heat

32.

The WASTED energy of a light bulb is...

a)

light

b)

electrical

c)

heat

d)

sound

33.

The useful energy of a laptop is....

a)

Light

b)

Sound

c)

Gravitational

d)

Heat

e)

Electrical

34.

Energy is measured in...

a)

millilitres

b)

degrees Celsius

c)

kilojoules

d)

grams

35.

The energy transformation of a lightbulb is

a)

heat -> light + sound

b)

electrical -> heat

c)

heat -> light + electrical

d)

electrical -> heat + light

36.

The energy transformation in a car is

a)

chemical -> kinetic + heat + sound + light

b)

kinetic -> sound

c)

electrical -> kinetic + gravitational

d)

chemical -> kinetic + electrical

37.

The energy transformation when a ball is dropped is

a)

kinetic -> gravitational

b)

chemical -> kinetic

c)

gravitational -> kinetic

d)

height energy -> sound energy

38.

True or false - the sun provides all of the earth's energy

a)

True

b)

False

39.

Light, Sound, Heat (or thermal), Kinetic, Electrical are examples of...

a)

potential energy

b)

action energy

40.

Energy due to the motion of an object is called

a)

movement energy

b)

gravitational energy

c)

kinetic energy

d)

elastic energy

41.

An action energy that travels in waves. Waves of different frequencies will appear in different colours. E.g. sunlight which is how plants get their energy.

a)

heat

b)

light

c)

sound

d)

kinetic

42.

The unit of energy is....

a)

metres

b)

minutes

c)

kilojoules

d)

grams

43.

When a bicycle screeches to a stop, its kinetic energy is transformed mostly into

a)

heat and sound

b)

potential energy

c)

sound energy

d)

heat and light

44.

The faster an object moves...

a)

The more potential energy it has

b)

The more kinetic energy it has

c)

The faster it vibrates

d)

The cooler it gets

45.

Which object has the greatest elastic potential energy?

a)

A boy on a trampoline who is touching the mat but has not yet bounced

b)

A girl who has stretched a hair elastic 20 cm

c)

A boy who has dropped a ball from a height of 1 metre

d)

A girl who has bounced and has risen into the air by 150 cm

46.

Which object has the highest gravitational potential energy?

a)

A boy on a trampoline who is touching the mat but has not yet bounced

b)

A girl who has stretched a hair elastic 20 cm

c)

A boy who has dropped a ball from a height of 1 m

d)

A girl who has bounced and has risen into the air by 150 cm

47.

Which globe is the MOST energy efficient

a)

1

b)

2

c)

3

d)

4

48.

Which globe is the LEAST energy efficient

a)

1

b)

2

c)

3

d)

4

49.

It takes 6kJ/minute of energy to sit in class quietly. How much energy is used during a 70 minute lesson

a)

11mins

b)

420kJ

c)

11kJ

d)

420mins

50.

A student makes a peanut butter sandwich using 2 slices of white bread and 2 tablespoons of peanut butter. How much energy does this sandwich contain?

(a)

51.

30 minutes of walking a dog burns 312 kilojoules. How many minutes of walking are needed to burn the energy in a mars bar? (round to to the nearest whole number)

(a)

52.

Cycling for one hour burns 1595kJ. How much energy would a person use if they cycled for 30 minutes

(a)

53.

Cycling for one hour burns 1595kJ. How much energy would a person use if they cycled for 3 hours?

(a)

54.

1 minute of jogging burns 24 kilojoules. How much energy would 20 minutes of jogging use?

(a)

55.

250mL of juice contains 450kJ. How much energy is in 50mL of juice?

(a)

56.

A 300mL bottle of coca-cola contains 540kJ. How much energy is in 100 mL of coca-cola?

(a)

57.

An iced coffee from a cafe contains 2210 kJ. 1 minute of jogging uses 24 kilojoules. How many minutes of jogging are needed to use all the energy in an iced coffee?

(a)

58.

3 chocolate cookies contain 583 kilojoules. How much energy is in one single chocolate cookie?

(a)

59.

A large fries from McDonalds contains 1530 kilojoules. 1 minute of walking your dog uses 10kJ. How many minutes of walking the dog would it take to use all the energy in a large fries?

(a)

60.

1 cupcake contains 778 kilojoules. If you cut the cupcake in half and only ate half, how much energy would you be consuming?

(a)

61.

In the burning of fireworks during New Year displays, chemical potential energy is converted into:

a)

heat, light and sound energy.

b)

light and sound energy.

c)

sound and heat energy.

d)

gravitational potential energy and light.

62.

The energy needed to make a car move along a flat road, to launch a rocket into outer space and to operate a small calculator is converted from:

a)

kinetic energy

b)

chemical energy

c)

elastic potential energy

d)

gravitational potential energy

63.

Which graph most closely describes where the skater is?

a)

b)

c)

d)

64.

Which graph most closely describes where the skater is?

a)

b)

c)

d)

65.

Which graph most closely describes where the skater is?

a)

b)

c)

d)

66.

Which graph most closely describes where the skater is?

a)

b)

c)

d)

67.

The law of conservation of energy states that energy cannot be__________________

a)

transformed or transferred

b)

created or destroyed

c)

used or wasted

d)

input or output

68.

Input energy is...

a)

How well a device converts input energy into useful energy

b)

Energy that is not used for something useful/ something we want

c)

Energy that is used for something useful

d)

Energy that goes into a device/ process

69.

The law of conservation of energy states that energy cannot be__________________

a)

transformed or transferred

b)

created or destroyed

c)

used or wasted

d)

input or output

70.

Input energy is...

a)

How well a device converts input energy into useful energy

b)

Energy that is not used for something useful/ something we want

c)

Energy that is used for something useful

d)

Energy that goes into a device/ process

71.

Useful energy is...

a)

How well a device converts input energy into useful energy

b)

Energy that is not used for something useful/ something we want

c)

Energy that is used for something useful

d)

Energy that goes into a device/ process

72.

Wasted energy is...

a)

How well a device converts input energy into useful energy

b)

Energy that is not used for something useful/ something we want

c)

Energy that is used for something useful

d)

Energy that goes into a device/ process

73.

Energy efficiency is...

a)

How well a device converts input energy into useful energy

b)

Energy that is not used for something useful/ something we want

c)

Energy that is used for something useful

d)

Energy that goes into a device/ process

74.

The units of energy are...

a)

Joules

b)

Grams

c)

Watts

d)

%

75.

Energy efficiency should be expressed as....

a)

Joules

b)

Grams

c)

Watts

d)

%

76.

Power is measured in...

a)

Joules

b)

Grams

c)

Watts

d)

%

77.

The input energy is....

a)

heat

b)

light

c)

electrical

78.

The wasted energy is....

a)

heat

b)

light

c)

electrical

79.

The useful energy is....

a)

heat

b)

light

c)

electrical

80.

The input energy is...

a)

heat

b)

electricity

c)

light

d)

sound

81.

The useful energy is...

a)

heat

b)

electricity

c)

light

d)

sound

82.

The power of an electronic device is measured in....

a)

Pascals

b)

Joules

c)

Watts

d)

Volts

83.

Energy efficiency (%) =

a)

$\frac{Useful\ energy}{Input\ energy\ }\times100$

b)

$\frac{Input\ energy}{Useful\ energy}\ \times\ 100$

c)

$\frac{Useful\ energy}{Wasted\ energy}\ \times\ 100$

d)

$\frac{Input\ energy}{Wasted\ energy}\times100$

84.

The efficiency of this light bulb is

a)

40 %

b)

60 %

c)

100 %

d)

1.67 %

e)

0.0167 %

85.

The useful energy of a kettle =

a)

power x time to boil

b)

final temperature - initial temperature

c)

4.2 x volume of water x change in temperature

d)

useful energy / input energy x 100

86.

The change in temperature of the water in a kettle is

a)

power x time to boil

b)

final temperature - initial temperature

c)

4.2 x volume of water x change in temperature

d)

useful energy / input energy x 100

87.

The input energy for a kettle is

a)

power x time to boil

b)

final temperature - initial temperature

c)

4.2 x volume of water x change in temperature

d)

useful energy / input energy x 100

88.

Energy efficiency =

a)

power x time to boil

b)

final temperature - initial temperature

c)

4.2 x volume of water x change in temperature

d)

useful energy / input energy x 100

89.

A toaster has an efficiency of 82%, an air fryer has an efficiency of 87%, and a kettle has an efficiency of 78%. Which appliance is the MOST efficient?

a)

toaster

b)

air fryer

c)

kettle

90.

A toaster has an efficiency of 82%, an air fryer has an efficiency of 87%, and a kettle has an efficiency of 78%. Which appliance is the LEAST efficient?

a)

toaster

b)

air fryer

c)

kettle

91.

The Russell and Hobbs kettle had a starting temperature of 24 degrees and a final temperature of 100 degrees. The power of this kettle is 2400 watts. It took 84 seconds to boil. 500mL of water was boiled. What is the CHANGE IN TEMPERATURE?

(a)

92.

The Russell and Hobbs kettle had a starting temperature of 24 degrees and a final temperature of 100 degrees. The power of this kettle is 2400 watts. It took 84 seconds to boil. 500mL of water was boiled. CALCULATE THE USEFUL ENERGY

(a)

93.

The Russell and Hobbs kettle had a starting temperature of 24 degrees and a final temperature of 100 degrees. The power of this kettle is 2400 watts. It took 84 seconds to boil. 500mL of water was boiled. CALCULATE THE INPUPT ENERGY

(a)

94.

The Russell and Hobbs kettle had a starting temperature of 24 degrees and a final temperature of 100 degrees. The power of this kettle is 2400 watts. It took 84 seconds to boil. 500mL of water was boiled.. CALCULATE THE EFFICIENCY AS A PERCENTAGE

(a)

95.

The Abalone brand kettle takes 83 seconds to boil. The starting temperature was 24 degrees and the final temperature was 97 degrees. The power of the kettle is 2200 watts. 500mL of water was boiled. CALCULATE THE CHANGE IN TEMPERATURE.

(a)

96.

The Abalone brand kettle takes 83 seconds to boil. The starting temperature was 24 degrees and the final temperature was 97 degrees. The power of the kettle is 2200 watts. 500mL of water was boiled. CALCULATE THE USEFUL ENERGY

(a)

97.

The Abalone brand kettle takes 83 seconds to boil. The starting temperature was 24 degrees and the final temperature was 97 degrees. The power of the kettle is 2200 watts. 500mL of water was boiled. CALCULATE THE INPUT ENERGY

(a)

98.

The Abalone brand kettle takes 83 seconds to boil. The starting temperature was 24 degrees and the final temperature was 97 degrees. The power of the kettle is 2200 watts. 500mL of water was boiled. CALCULATE THE EFFICIENCY AS A PERCENTAGE

(a)

99.

The energy of a runner....

a)

Chemical energy

b)

Kinetic energy

c)

Elastic energy

d)

Nuclear energy

100.

The energy of a stretched elastic band

a)

kinetic potential energy

b)

kinetic action energy

c)

elastic potential energy

d)

elastic action energy

101.

The useful energy of a kettle.....

a)

heat

b)

light

c)

sound

d)

electrical

102.

Select the correct energy chain for a microwave

a)

electrical potential-> heat, kinetic (action

b)

Chemical potential -> elastic potential -> kinetic, sound

c)

chemical potential -> heat, light, sound

d)

electrical -> light -> heat

103.

Select the correct energy chain for fireworks

a)

electrical potential-> heat, kinetic (action

b)

Chemical potential -> elastic potential -> kinetic, sound

c)

chemical potential -> heat, light, sound

d)

electrical -> light -> heat

104.

Select the correct energy chain for a computer screen

a)

electrical potential-> heat, kinetic (action

b)

Chemical potential -> elastic potential -> kinetic, sound

c)

chemical potential -> heat, light, sound

d)

electrical -> light -> heat

105.

Select the correct energy chain for a hair dryer

a)

electrical potential

-> heat, sound

b)

Chemical potential -> elastic potential -> kinetic, sound

c)

chemical potential -> heat, light, sound

d)

electrical -> light

-> heat

106.

An engine has an energy input of 100J and gives out 42J of useful, kinetic energy. What is the efficiency of the engine?

(a)

107.

Select all that are true about RENEWABLE energy

a)

Does not run out

b)

Will eventually run out

c)

Examples are coal, gas, oil

d)

Examples are solar, wind, hydroelectricity

108.

Select all that are true about NON RENEWABLE energy

a)

Does not run out

b)

Will eventually run out

c)

Examples are coal, gas, oil

d)

Examples are solar, wind, hydroelectricity

109.

Select all the things you could do to have a FAIR TEST

a)

Change only one thing (ONE independent variable)

b)

Change multiple things (more than one independent variable)

c)

Control other variables or factors which could affect the results

d)

Take precise measurements

110.

Consider the pendulum experiment. Select variables which could be changed to investigate an effect on the period of a pendulum

a)

mass of bob

b)

length of pendulum

c)

angle of release

d)

height off the ground

e)

how many students run the experiment

Yr 8 big energy quiz

Total questions: 110

Worksheet time: 6hrs 30mins

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