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One term, and every place the course uses it — the revision notes that teach it, the multiple choice questions that check it, and the detailed questions that examine it.
6 sub-topics use inflation
Edexcel · Physics · 14 Particle model
14.3Gas pressure and temperature
barrel, warming it. Explain why the barrel of a bicycle pump becomes warm when a tyre is inflated. The pump does not warm up mainly because of friction between the piston and the barrel. The examinable
in Increasing the pressure of a gas
Edexcel · Physics · 7 Astronomy
7.2The Big Bang and red-shift
Used in 1 question on this sub-topic.
Edexcel · Physics · 14 Particle model
14.2Specific heat capacity and latent heat
Used in 1 question on this sub-topic.
Edexcel · Physics · 2 Motion and forces
2.4Momentum
momentum is the same; only the time over which it happens changes. data_table Air bag Inflates and compresses as the driver moves into it, so the driver stops over a longer time Seat belt Stretches
in Changes in momentum
Edexcel · Physics · 2 Motion and forces
2.5Stopping distances and reaction times
Used in 1 question on this sub-topic.
Edexcel · Physics · 8 Energy – forces doing work
8.2Power and efficiency
Used in 1 question on this sub-topic.