This Homework requires GRAPH PAPER!
In your jotter write the DATE in the margin. |
A road tanker delivers unleaded petrol and diesel to a filling station. The volume of unleaded petrol in the tanker is 6 600 litres.
The total volume of fuel in the tanker is 11000 litres. |
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a) | Calculate the volume of diesel delivered. Remember to show your working. |
b) | |
Petrol is sold at £1.20 per litre and diesel at £1.25 per litre.
How much money will the garage owner collect when he has sold all the fuel delivered? |
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c) | The garage makes 5% profit per litre of petrol. What is the garage’s profit? |
Question 3. |
A plumber fitted a 12 kg water tank in a house. He connected 4 copper pipes to the tank. Each pipe had a mass of 2 kg.
What is the total mass of the water tank and the four pipes? |
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Question 4. |
The wreck of a Spanish galleon was found by divers. The divers found five gold coins.
The total mass of the five coins was 125 g. Calculate the mass of one coin. |
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Question 5. | |
Mira decided to find out if it was true that adding salt to water makes it boil at a higher temperature. She conducted an experiment at home using salt water.
Mira heated salt water and measured the temperature every minute. |
a) | Plot a line graph to show Mira’s results. |
b) | What term would describe the salt water between 7 and 10 minutes? |
c) | What conclusion can Mira draw on the effect of adding salt to water? |
Question 6. |
Air is a mixture of different gases.
Air is made up of oxygen (21%), Nitrogen (78%) and other gases (1%). |
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In your jotter construct a pie chart to show the composition of the air. |