3-4 Energy from combustion (p.112)

• Natuurkunde
• Middelbare school
• havo, vwo
• Leerjaar 2

Energy from combustion 

(p. 112)

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Lessongoals:

• Explain the three factors neccesary to explain combustion.
• I can explain that food is a neccesary source of energy for the body.

Fighting fire

• Prevent oxygen from getting to the fire
• Cool the fuel down until it is below the ignition temperature
• Remove the fuel

What are the three factors neccesary to sustain flamability?

Which factor of combustion can you best remove when cooking oil on a stove caches fire?

1. Oxygen
2. Fuel
3. Heat

Products of combustion

combustion with excess oxygen:

water vapour and carbon dioxide

Incomplete combustion:

water vapour and carbon monoxide

CO​2​​

CO​​​

Combustion of food

Food is an energy source for your body.

your body combusts food and therefore we breathe our carbon dioxide.

What are the products of combustion in your body?

1. Carbon dioxide and water vapor
2. Carbon monoxide and water vapor

Oxygen is always needed for combustion

1. True
2. False

During combustion fuel and oxygen are used and other substances are produced.

1. True
2. False

With sufficient oxygen a fire will continue to burn endlessly

1. True
2. False

Incomplete combustion produces only CO2 and water vapor.

1. True
2. False

Opgaven

22 t/m 27 (blz. 115)

Insert a photo of your answer to Q26

Insert a photo of your answer to 27

What did you think of the lesson? Anything I can do to improve?