Air is trapped in a syringe with a sealed outlet. The plunger is pushed in slowly while the temperature remains constant. Which statement explains why the air can be compressed?
The individual air particles become smaller in size.
The number of air particles becomes smaller overall.
The spaces between the air particles become smaller.
The mass of each air particle becomes smaller overall.
108 exam-style questions on Edexcel GCSE Physics 14.3 Gas pressure and temperature, covering 14.3.1 Gas pressure and particle motion, 14.3.2 Temperature and pressure at constant volume, 14.3.3 Absolute zero and the kelvin scale, 14.3.4 Compressing and expanding gases, 14.3.5 Volume and pressure at constant temperature, and 14.3.6 Doing work on a gas. Each one has a worked solution and a mark scheme showing where the marks go.