Fuels
Fuels
What is a fuel?
A fuel can be thought of as a concentrated source of energy. The energy is stored in the fuel as c____________ energy. When the fuel is burnt, h__________ energy and l________ energy is released.
CHALLENGE : Complete the worksheet called “Jenny’s holiday diary” to learn about some everyday fuels.
We use different fuels for different jobs.
CHALLENGE: Place the fuels in the correct columns to show where they are used
|Candle |Car |Cooker |Fire |Central heating |BBQ |
| | | | |system | |
| | | | | | |
| | | | | | |
| | | | | | |
What makes a good fuel?
Put a ✓by the qualities you think make a good fuel:
All fuels have their pros and cons!
The properties of a selection of fuels which could be used for heating a house were compared. More ✓ were awarded to those considered better.
|Fuel |Storage and |Energy produced per |Pollution produced |Cost |Ash or water |
| |convenience |gram | | | |
|Natural gas |✓✓✓✓✓ |✓✓✓✓✓ |✓✓✓✓✓ |✓✓✓ |✓✓✓✓✓ |
|Paraffin |✓✓ |✓✓ |✓✓✓ |✓✓✓ |✓✓✓✓✓ |
|Wood | |✓ |✓ |✓✓✓✓✓ |✓✓ |
|Coke |✓✓ |✓✓✓ |✓✓✓ |✓✓ |✓✓✓ |
|Coal |✓✓ |✓✓✓ |✓✓ |✓✓ |✓✓ |
1) Give 4 properties of natural gas which makes it a good fuel for heating a house.
____________________________________________________________________________________________________________________________________________________________________________________
2) Name the worst fuel for the house ____________. Give 3 reasons for your choice;
____________________________________________________________________________________________________________________________________________________________________________________
Extension work:
There is energy in food. We measure energy in joules. There are 1000 joules (J) in 1 kilojoule (kJ)
How many joules (J) are in:
2.3kJ _____ 6.8kJ _________ 0.6kJ ________
4.7kJ _____ 20.1kJ _________ 0.01kJ ________
How many kilojoules (kJ) are in:
2345J ________ 1678J__________ 200J _________
Which do you think contains the most joules – a sausage or a banana? ___________
What happens to you if you eat too many energy rich foods? ____________________
-----------------------
Petrol, wood, coal, gas, oil, diesel, wax, charcoal
Gives out a lot of heat Burn with a clean flame Give off toxic fumes
Burn with a smoky yellow flame Give off a lot of smoke Are easy to transport
Are easy to light[?]
¸ÄÌáâíîG I u v € Ä Å ù ú
ðâÒÄ Burn steadily Are very expensive
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.