1a1 mark
A depth of 10 m of water exerts the same amount of pressure as the entire Earths atmosphere, which is ~120 km deep.
Suggest why.
1b2 marks
A diver takes pressure readings at different depths.
The results are in the table.
| Depth of water (m) |
Pressure (standard units) |
| 0 | 1 |
| 10 | 2 |
| 20 | 3 |
| 30 | 4 |
| 40 | 5 |
| 50 | 6 |
Use the results to describe the relationship between the depth of water and pressure.
1c1 mark
Suggest why there is pressure at 0 metres.
1d4 marks
d)
A container of vegetable oil has 3 holes in it (A, B and C).
The vegetable oil has a density of 9.1 × 102 kg/m3.
Calculate the change in pressure from A to B.
Show your working and give your answer to two significant figures
The vegetable oil has a density of 9.1 × 102 kg/m3.Calculate the change in pressure from A to B.
Show your working and give your answer to two significant figures
Answer = ......................... Pa [4]
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