Skip to content

Course home

Sign up

5.5 Pressure and pressure differences in fluids

EasyMediumHard
123456789101112131415161718192021222324252627282930
Question 11
H

A weather balloon is filled with helium and released at ground level. It rises through the atmosphere and expands as it rises.

Figure: A weather balloon rising through the atmosphere

image

a.

Explain why the balloon expands as it rises.

[2]
b.

At launch the balloon is only partly filled with helium. Suggest why the balloon is not completely filled at launch.

[2]
c.

The balloon rises until the upthrust on it is equal to its weight. Explain what happens to the balloon after this point.

[2]
Markscheme

5.5 Pressure and pressure differences in fluids Questions

  1. GCSE
  2. /Physics
  3. /5.5 Pressure and pressure differences in fluids

41 exam-style questions on AQA GCSE Physics 5.5 Pressure and pressure differences in fluids, covering 5.5.1 Pressure in a fluid and 5.5.2 Atmospheric pressure. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank