Physics Topic Practice

Boyle's Law (Pressure and Volume) | GCSE Physics

At a constant temperature, the volume of a gas is inversely proportional to its pressure.

If you double the volume of a gas, what happens to the pressure?

What is Boyle's Law (Pressure and Volume) | GCSE Physics?

"The law stating that for a fixed mass of gas at constant temperature, pressure is inversely proportional to volume."

Question 1

What is the formula for density?

Question 2

Why does a crisp packet puff up when taken on an airplane flight?

Question 3

Calculate the pressure at a depth of 2m in water (density = 1000 kg/m³, g = 9.8 N/kg).

Question 4

Specific heat capacity is the energy needed to raise 1kg of a substance by ____.

Pressure-Volume Law

If volume decreases, particles are closer together.

They collide more frequently with the walls.

This increases the pressure of the gas.

Equation: Pressure x Volume = Constant ($P_1V_1 = P_2V_2$).

Exam Tip

Graph Feature: A graph of Pressure vs Volume is a curve (hyperbola). A graph of Pressure vs 1/Volume is a straight line.

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