1. Teacher’s Notes Energy Transfer Circus:- Burning Demo:- Fuel Demos:-
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Energy Transfer Circus:-
Wind up toys
Kettle
Balloons and duster cloth
Torch
Energy Transfer Unit (from MUTR)
Electric Motor pulling up weights
Lamp and Solar Cell connected to a fan
Fan and Windmill connected to a light bulb
Burning Demo:-
Pouring CO2 Demo (can be done as a class practical). Vinegar, candle light, baking soda.
Burning Hands Demo
Fuel Demos:-
Ethanol in sealed test tube and Large Drinking Water container
Large Hydrogen Balloon (pre-prepared) and meter ruler with a candle stuck at the end
Model Power Station with fire lighter fuel
OPTIONAL LITERACY EXTENSION TASK:-
Three candles of different lengths, Large beaker.
CAMS HILL WRITING FRAMES

2. 22/02/2019
Energise
Yourself

3. L1-Types of Energies and
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L1-Types of Energies and
Combustion

4. HOMEWORK Design two posters with the following titles: Due
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Design two posters with the following titles:
How Coal was made
How Petrol was made
Due

5. 22/02/2019
What do you know
about Energy?

6. Energy Transfers and Combustion Lesson Outcomes
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Energy Transfers and Combustion Lesson Outcomes
Key Words:- Electrical, Potential, Joule, Fuel, Combustion, Transfer, Conservation, Thermal, Sankey Diagram
To be able to list at least 3 different types of energies and give examples of energy transfers.
To be able to explain the combustion triangle.
To be able to explain the difference between a good and a bad fuel.

7. The Nine Types of Energy
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Chemical
Gravitational
Kinetic
Energy
Elastic
Types of
Energies
Potential
Energy
Light
Thermal
Energy
Sound
Nuclear

8. Gravitational potential
The 9 types of energy
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Type
3 example sources
Type
3 example sources
Heat
Kinetic (movement)
Nuclear
Sound
Light
Chemical
Electrical
Gravitational potential
Elastic potential

9. Electricity Light + heat
Energy changes
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To describe an energy change for a light bulb we need to do 3 steps:
1) Write down the starting energy:
3) Write down what energy types are given out:
2) Draw an arrow
Electricity Light + heat
What are the energy changes for the following…?
An electric fire
A rock about to dropping through the air
An arrow being fired

10. Energy Transfer Circus
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Either Demonstrate or students go around the energy transfer circus.
At each station/demo students draw an appropriate Energy Transfer diagram.
If demonstrating students can write Energy transfer diagrams on mini white boards.

11. How energy is transferred
Energy itself is invisible. This activity should help you to understand that you can track energy by what it does, and to start to understand where energy comes from and goes to.
Equipment
Around the room there are 10 stations. At each one is some equipment set up. Your teacher will tell you which station to start at.
Safety
Keep Bunsen burner flames turned to the yellow safety flame.
Obtaining evidence
Draw up a table like the one shown below.

12. Bunsen burner Chemical Heat Light Sound Cooker Example Station 1
name of device
energy input
useful energy output
waste energy output
Another example of the same energy transfer
Example
Bunsen burner
Chemical
Heat
Light
Sound
Cooker
Station 1
Types of energy
thermal (heat)
kinetic (movement)
sound
light
electrical
chemicalgravitational potential
strain

13. 80 J/s heat energy (given to the surroundings)
Sankey diagrams
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Consider a light bulb. Let’s say that the bulb runs on 100 watts (100 joules per second) and transfers 20 joules per second into light and the rest into heat. Draw this as a diagram:
“Input” energy
“Output” energy
20 J/s light energy
100 J/s electrical energy
80 J/s heat energy (given to the surroundings)

14. Example questions Consider a computer: Consider a kettle:
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Consider a computer:
150 J/s electrical energy
10 J/s wasted sound
20 J/s wasted heat
Useful light and sound
How much energy is converted into useful energy?
What is the computer’s efficiency?
Consider a kettle:
Work out each energy value.
What is the kettle’s efficiency?
Sound energy
Wasted heat
Heat to water
2000 J/s electrical energy

15. Energy Transfers and Combustion Lesson Outcomes
22/02/2019
Energy Transfers and Combustion Lesson Outcomes
Key Words:- Electrical, Potential, Joule, Fuel, Combustion, Transfer, Conservation, Thermal, Sankey Diagram
To be able to list at least 3 different types of energies and give examples of energy transfers.
To be able to explain the combustion triangle.
To be able to explain the difference between a good and a bad fuel.

16. The Combustion Reaction
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The Combustion Reaction

17. What are the things needed for something to burn?
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What are the things needed for something to burn?
Watch some of these demos and see if you can explain what is going on.

18. What are the things needed for something to burn?
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What are the things needed for something to burn?
Burning Demo – watch this demo / do it as a class. Can you explain why the flame goes out? What does this tell you about what is needed for something to burn?
Burning Hands Demo

19. The fire triangle
Click Image

20. Watch this clip and explain why it shows some bad science.
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Watch this clip and explain why it shows some bad science.

21. Optional Extension Activity
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Light three candles of different lengths and ask students to predict which one will go out first when you cover it with a beaker.
You can use CAMs Hill writing frames to get students to explain this in detail.

22. Energy Transfers and Combustion Lesson Outcomes
22/02/2019
Energy Transfers and Combustion Lesson Outcomes
Key Words:- Electrical, Potential, Joule, Fuel, Combustion, Transfer, Conservation, Thermal, Sankey Diagram
To be able to list at least 3 different types of energies and give examples of energy transfers.
To be able to explain the combustion triangle.
To be able to explain the difference between a good and a bad fuel.

23. 22/02/2019
What is a fuel?

24. Fuel demos
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Ethanol Rocket – Pour some Ethanol in the large Water Container and shake about for a few minutes. Pour out the Ethanol and carefully light the top of the bottle.
Light a large Hydrogen balloon using a meter ruler with a candle stuck at the end.

25. Fuels
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A “fuel” is something that can be burned to release heat and light energy. The main examples are:
Coal, oil and gas are called “fossil fuels”. In other words, they were made from fossils.

26. Oil and gas formation

27. Coal formation

28. Energy Transfers and Combustion Lesson Outcomes
22/02/2019
Energy Transfers and Combustion Lesson Outcomes
Key Words:- Electrical, Potential, Joule, Fuel, Combustion, Transfer, Conservation, Thermal, Sankey Diagram
To be able to list at least 3 different types of energies and give examples of energy transfers.
To be able to explain the combustion triangle.
To be able to explain the difference between a good and a bad fuel.