Y8: Energy Revision

Energy
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Slide 1: Slide
PhysicsLower Secondary (Key Stage 3)

This lesson contains 87 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 35 min

Items in this lesson

Energy

Slide 1 - Slide

What is the unit of energy?
A
Joules
B
Watts
C
Seconds
D
Newtons

Slide 2 - Quiz

How many joules in 1 kilojoule?
A
0.1
B
1000
C
100
D
10

Slide 3 - Quiz

How many kJ are there in 4000J?
A
400000
B
0.4
C
40
D
4

Slide 4 - Quiz

Energy cannot be created or destroyed, but it can be stored and transferred between stores.

Slide 5 - Slide

Name 3 things that have a thermal energy store.

Slide 6 - Open question

Energy cannot be created or destroyed, but it can be stored and transferred between stores.

Slide 7 - Slide

Name 3 things that have a kinetic energy store.

Slide 8 - Open question

Energy cannot be created or destroyed, but it can be stored and transferred between stores.

Slide 9 - Slide

Name 3 things that have a chemical energy store.

Slide 10 - Open question

Energy cannot be created or destroyed, but it can be stored and transferred between stores.

Slide 11 - Slide

Name 3 things that have a gravitational potential energy store.

Slide 12 - Open question

Energy cannot be created or destroyed, but it can be stored and transferred between stores.

Slide 13 - Slide

Name 3 things that have an elastic potential energy store.

Slide 14 - Open question

A bonfire has a large ............... energy store.
A
Kinetic
B
Thermal
C
Chemical
D
Elastic potential

Slide 15 - Quiz

A racing formula one car has a large ............... energy store.
A
Kinetic
B
Thermal
C
Chemical
D
Gravitational potential

Slide 16 - Quiz

A flying bird has a large ............... energy store.
A
Kinetic
B
Thermal
C
Chemical
D
Gravitational potential

Slide 17 - Quiz

A stress ball has a large ............... energy store.
A
Elastic potential
B
Thermal
C
Chemical
D
Gravitational potential

Slide 18 - Quiz

A bag of sweets has a large ............... energy store.
A
Elastic potential
B
Thermal
C
Chemical
D
Gravitational potential

Slide 19 - Quiz

Complete the table.
Chemical energy store
Elastic potential energy store
Gravitational potential energy store
Kinetic energy store
Objects moving fast
Hot objects
Stretched or compressed objects
Wood and coal
A rock on a cliff
Boiling water

Slide 20 - Drag question

Energy can be transferred between stores.
Chemical
Kinetic

Slide 21 - Slide

Energy can be transferred between stores.
Gravitational potential
Kinetic

Slide 22 - Slide

Label the energy store that is being transferred from and to.
Thermal
Kinetic
Chemical
Gravitational potential
Elastic potential

Slide 23 - Drag question

Label the energy store that is being transferred from and to.
Thermal
Kinetic
Chemical
Gravitational potential
Elastic potential

Slide 24 - Drag question

Label the energy store that is being transferred from and to.
Thermal
Kinetic
Chemical
Gravitational potential
Elastic potential

Slide 25 - Drag question

Slide 26 - Slide

Slide 27 - Slide

Energy is transferred from the chemical store of the wood to the thermal store of the air by ........................... (you can pick more than one).
Sound
Light
Electricity
Force
Heating

Slide 28 - Drag question

Energy is transferred from the gravitational potential store of the platform diver to the kinetic store of the falling diver by ........................... 
Sound
Light
Electricity
Force
Heating

Slide 29 - Drag question

Complete the sentence.
Thermal
Chemical
Kinetic
Elastic
Gravitational
Heating
Sound
Light
Electricity
Force

Slide 30 - Drag question

Complete the sentence.
Thermal
Chemical
Kinetic
Elastic
Gravitational
Heating
Sound
Light
Electricity
Force

Slide 31 - Drag question

Complete the sentence.
Thermal
Chemical
Kinetic
Elastic
Gravitational
Heating
Sound
Light
Electricity
Force

Slide 32 - Drag question

Complete the sentence.
Thermal
Chemical
Kinetic
Elastic
Gravitational
Heating
Sound
Light
Electricity
Force

Slide 33 - Drag question

Challenge: Describe the energy stores in a hairdryer. How is energy transferred to and from the hairdryer?

Slide 34 - Open question

Thermal is a....
A
Store
B
Transfer

Slide 35 - Quiz

Heating is a....
A
Store
B
Transfer

Slide 36 - Quiz

Electricity is a....
A
Store
B
Transfer

Slide 37 - Quiz

Kinetic is a....
A
Store
B
Transfer

Slide 38 - Quiz

Sort the keywords into stores or transfers.
Store
Transfer
Force
Thermal
Kinetic
Light
Sound
Gravitational
Heating
Elastic
Chemical
Electricity

Slide 39 - Drag question

How many examples of stores and transfers can you find?

Slide 40 - Open question

Conservation of energy demo?
Conservation of Energy: What energy stores does a swinging pendulum have?

Slide 41 - Slide

Slide 42 - Slide

As the pendulum swings towards the ground, what happens to the amount of gravitational potential energy (GPE)?
A
It increases
B
It decreases

Slide 43 - Quiz

As the pendulum swings towards the ground, what happens to the amount of kinetic energy?
A
It increases
B
It decreases

Slide 44 - Quiz

How is the energy transferred from the gravitational store to the kinetic store?
A
Heating
B
Wave
C
Force
D
Electricity

Slide 45 - Quiz

A pendulum has 20 J of energy. 16 J is in the gravitational potential store, how much is in the kinetic store?

Slide 46 - Open question

In reality, a pendulum will not keep swinging forever. Why?

Slide 47 - Open question

Where does the energy we use in our homes come from?

Slide 48 - Open question

Name some energy resources.

Slide 49 - Open question

What is the difference between renewable and non-renewable?

Slide 50 - Open question

Slide 51 - Slide

Tidal
Solar
Wind
Biomass
Waves
Hydroelectric
Geothermal

Slide 52 - Drag question

Slide 53 - Slide

Slide 54 - Slide

Why might we choose to use fossil fuels as an energy resource?

Slide 55 - Open question

Why might we NOT choose to use fossil fuels as an energy resource?

Slide 56 - Open question

Slide 57 - Slide

Slide 58 - Slide

Why might we choose to use renewable energy resources?

Slide 59 - Open question

Why might we choose NOT to use renewable energy resources?

Slide 60 - Open question

Slide 61 - Slide

Non-renewable 
Renewable
Solar
Wind
Nuclear
Geothermal
Oil
Tidal
Gas
Coal
Hydroelectric
Biomass
Wave

Slide 62 - Drag question

Match the resource to the energy store it uses.
Geothermal
Hydroelectric
Fossil fuels
Wind
Solar
Biomass
Tidal/Wave

Slide 63 - Drag question

Which of these is NOT a fossil fuel resource?
A
Oil
B
Gas
C
Solar
D
Coal

Slide 64 - Quiz

Which of these is NOT a renewable energy resource?
A
Tidal
B
Geothermal
C
Nuclear
D
Hydroelectric

Slide 65 - Quiz

Which type of energy still involves burning a fuel, but not a fossil fuel?
A
Geothermal
B
Biomass
C
Hydroelectric
D
Nuclear

Slide 66 - Quiz

Which type(s) of energy might significantly effect the surrounding wildlife?
A
Hydroelectric
B
Solar
C
Geothermal
D
Wind

Slide 67 - Quiz

Tidal
Wind
Solar
Hydroelectricity

Slide 68 - Drag question

Give an advantage of renewable energy resources.

Slide 69 - Open question

Give an advantage of non-renewable resources.

Slide 70 - Open question

Name 2 non-renewable energy resources.

Slide 71 - Open question

Slide 72 - Slide

Slide 73 - Slide

Slide 74 - Slide

Slide 75 - Slide

Slide 76 - Slide

Slide 77 - Slide

Slide 78 - Slide

Suggest the effect of not putting enough coal in the furnace.

Slide 79 - Open question

Label the coal power station to show how it works.
Fossil fuel
Heat
Boiler
Spinning turbine
Spinning generator
Electric current
Carbon dioxide and other gases

Slide 80 - Drag question

What is power?

Slide 81 - Open question

Slide 82 - Slide

What is the unit of power?
A
Joules
B
Watts
C
Kilojoules
D
Newtons

Slide 83 - Quiz

How many watts in a kilowatt?
A
10
B
0.1
C
100
D
1000

Slide 84 - Quiz

How many watts in a 4 kilowatts?
A
40
B
0.4
C
400
D
4000

Slide 85 - Quiz

How many watts in a 0.5 kilowatts?
A
50
B
0.5
C
500
D
5000

Slide 86 - Quiz

A kettle transfers 100 J in 5 seconds. Calculate the power of the kettle.
A
20 W
B
500 W
C
0.05 W
D
50 W

Slide 87 - Quiz