Thermal Physics Heat and Temperature
Question 1 of 60
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A sealed syringe contains air at atmospheric pressure. The nozzle is blocked and the plunger is pushed in slowly, reducing the volume. Why does the pressure increase (particle theory)?
Select one option.
A
Air particles become larger when compressed.
B
The mass of air increases during compression, raising pressure.
C
Compression stops random motion so particles push more strongly.
D
Air particles strike the syringe walls more frequently (and there is greater total momentum change per second), increasing force per unit area.
E
Pressure increases only because gravity increases inside the syringe.
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