Pressure In Gases (physics Only) (GCSE Physics)

The pressure of a gas is caused by

A physics teacher demonstrates a syringe connected to a pressure gauge. Pushing the plunger slowly increases pressure. Which explanation is physics-based and correct?

A syringe with a fixed amount of air is pushed slowly so the plunger moves in and reduces the volume. The air temperature stays constant. The pressure inside the syringe

Which is the best description of temperature in the particle model of matter?

At higher altitudes the atmospheric pressure is lower because

A closed container of gas has pressure p and volume V. If the volume is reduced to V/4 at the same temperature, the pressure becomes

A sealed rigid container holds a gas at 2.0 × 10^5 Pa. The container is heated so the gas pressure becomes 3.0 × 10^5 Pa. The factor by which the average kinetic energy of the particles changes is

Which device measures atmospheric pressure?

A student places a closed syringe in a freezer so the air inside cools. The plunger moves in slightly. This happens because cooling the air

Which statement best describes Boyle’s law for a fixed mass of gas at constant temperature?

The SI unit of pressure is the pascal. One pascal equals