GCSE AQA Physics Topic 3 Particles of Matter Questions and answers graded A+ 2025/2026

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GCSE AQA Physics Topic 3 Particles of Matter Questions and answers graded A+ 2025/2026

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Institution ADVANCED AQA GCSE PHYSICAL ACTIVITY IN SOCIETY

Course ADVANCED AQA GCSE PHYSICAL ACTIVITY IN SOCIETY

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GCSE AQA Physics Topic 3 Particles of Matter Questions and answers graded A+ 2025/2026

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GCSE AQA Physics Topic 3 Particles of
Matter
What is the definition of density? State the relevant equation with units. - ANS-The mass per
unit volume of a material.

⍴=m/v

Density (kg/m³), Mass (kg), Volume (m³)

State the different states of matter in order (least to most) of density of atoms - ANS-Least
dense: Gas
Liquid
Most dense: Solid

Describe the particle arrangement of a solid. - ANS-Tightly packed in a regular arrangement.
Particles can only vibrate on the spot.

Describe the particle arrangement of a liquid - ANS-Close together, but with an irregular
arrangement. They can flow over each other.

Describe the particle arrangement of a gas. - ANS-Separated, with no regular arrangement.
Particles can move freely.

What is always conserved when a substance undergoes a change of state? - ANS-Mass

How does a change of state differ from a chemical change? - ANS-In a change of state, the
material can return to having its previous properties if the change is reversed

What is sublimation? - ANS-When a solid changes into a gas without passing through a liquid
state

What is evaporation? - ANS-When a liquid changes into a gas state.

Explain the processes involved when a bathroom mirror mists up. - ANS-Hot water evaporates
to form water vapour

This water vapour lands on the cooler mirror

The vapour condenses and returns to liquid state on the mirror's surface

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Uploaded on: July 23, 2025
Number of pages: 4
Written in: 2024/2025
Type: Exam (elaborations)
Contains: Questions & answers

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