AQA Trilogy GCSE Science - Science

8. Gas Pressure and Volumes

Mission Objectives

Describe the relationship between pressure and temperature

Describe Brownian motion

Explain the correlation between pressure and temperature

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Keywords

Words and meanings to learn

temperature

a measure of the average kinetic energy of the particles in a substance; it indicates how hot or cold an object is and is typically measured in degrees Celsius

pressure

the force exerted per unit area on the surface of an object

volume

the amount of space that a substance or object occupies

kinetic

refers to motion; in the context of kinetic energy, it refers to the energy that an object possesses due to its motion

Boyle’s law

states that for a fixed amount of gas at a constant temperature, the pressure of the gas is inversely proportional to its volume; this means that if the volume decreases, the pressure increases, and vice versa

This lesson has been written by

Samantha Batch

Samantha is a dedicated and accomplished science educator with over 15 years of leadership experience in the field, coupled with a strong background in scientific analysis. She has a proven track record of strategically managing educational departments, driving operational efficiencies, and nurturing collaborative relationships with stakeholders. 

Samantha previously served as the Head of Chemistry and Sixth Form Tutor, Ilkley Grammar School, Ilkley with extensive Key Stage 4 and 5 teaching experience and leadership. In addition to her teaching and leadership roles, she is also an examiner for AQA, providing her with valuable insight into assessment standards and exam specifications.

In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket, where she's enthusiastically honing her skills both on and off the pitch!

Required Resources

Selection of standard size balloons.

Plastic syringes.

Pressure gauge.

Masses.

Calculators.

Equipment to demonstrate Boyle’s Law.

Exam questions.

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