Exit to G3 Physics and O-Level Thermal Physics Hub

Check what I know: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

Check what you know about the particle model, practise what needs work, then check your progress and return for a later review.

SEC G3 Physics 2027

Learning goals

Work through the questions and use the feedback to plan revision.

Check what I know

Check what I know: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

A text-first particle-model assessment with explicit states, observations, temperatures and particle behaviour.

About 8 minutes

Check what I know

Answer 5 short questions. This starting check helps choose what to work on; it does not prove mastery.

Recent attempts

History is stored only in this browser.

No completed attempts are saved yet.

This check needs JavaScript to record answers. The reviewed questions are listed below for study.

Sample P has a fixed volume but no fixed shape. Which state is P?

Liquid
Solid
Gas
It cannot be classified from these properties.

Why can a trapped gas be compressed substantially without removing particles?

There are large gaps between its particles that can decrease.
Each gas particle shrinks.
The particles stop existing temporarily.
The gas becomes a vacuum.

A body's temperature rises. What happens to the average kinetic energy of all its particles?

It increases.
It decreases.
It must stay unchanged.
It becomes zero.

In a Brownian-motion experiment, why does a visible smoke particle follow an irregular zig-zag path?

It is a single air molecule moving between other molecules.
A steady current carries it along a smooth path.
The particle expands and contracts as it is heated.
Unequal, continually changing collisions by randomly moving molecules push it in different directions.

What produces the pressure of a gas in a sealed container?

The particles expand until they press continuously on the walls.
The container creates new particles at its surface.
Gas particles collide with the walls and exert a force per unit area.
The weight of the gas presses only on the bottom wall.

Practise

Practise: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

A text-first particle-model assessment with explicit states, observations, temperatures and particle behaviour.

About 10 minutes

Practise

Questions are selected when you start. Use the feedback to decide what to practise next; this does not prove mastery.

Recent attempts

History is stored only in this browser.

No completed attempts are saved yet.

This check needs JavaScript to record answers. The reviewed questions are listed below for study.

Substance Q fills a sealed container and occupies the whole available volume. Which state is Q?

Gas
Liquid
Solid
Both liquid and solid

Which particle model explains why a solid keeps its shape?

Its particles are held in an ordered arrangement and vibrate about fixed positions.
Its particles move freely through the whole container.
Its particles continually move past one another.
Its particles have no forces between them.

Particles in sample R have a greater average kinetic energy than particles in sample S. Which sample has the higher temperature?

Sample R
Sample S
They must have the same temperature.
Their temperatures cannot be compared.

What valid inference follows from observing Brownian motion?

Molecules in the surrounding fluid move randomly and collide with the visible particle.
The visible particle is a molecule magnified by the microscope.
The fluid has a steady current in alternating directions.
Molecules move only when they hit a visible particle.

A learner answers the question “Which change directly exerts force on a gas-container wall?” with “The weight of the gas presses continuously on every wall equally.” Which correction gives the particle-model explanation?

A colliding particle changes momentum and transfers momentum to the wall, producing a force on that wall.
The gas’s downward weight acts outward on every wall equally, producing the force without any particle impacts.
A particle grows to fill the gap next to the wall, producing a continuous force without any change of momentum.
A collision creates an extra particle at the wall, producing the force by increasing the number of particles.

Practise

Practise after feedback: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

A text-first particle-model assessment with explicit states, observations, temperatures and particle behaviour.

About 10 minutes

Practise

Questions are selected when you start. Use the feedback to decide what to practise next; this does not prove mastery.

Recent attempts

History is stored only in this browser.

No completed attempts are saved yet.

This check needs JavaScript to record answers. The reviewed questions are listed below for study.

Substance Q fills a sealed container and occupies the whole available volume. Which state is Q?

Gas
Liquid
Solid
Both liquid and solid

Which particle model explains why a solid keeps its shape?

Its particles are held in an ordered arrangement and vibrate about fixed positions.
Its particles move freely through the whole container.
Its particles continually move past one another.
Its particles have no forces between them.

Particles in sample R have a greater average kinetic energy than particles in sample S. Which sample has the higher temperature?

Sample R
Sample S
They must have the same temperature.
Their temperatures cannot be compared.

Which observation is Brownian motion?

All suspended particles drift steadily with a current.
Every suspended particle moves steadily in the same direction.
A visible suspended particle follows an irregular zig-zag path.
A visible molecule follows a smooth circular path.

Which change directly exerts force on a gas-container wall?

Particle momentum changes during collisions with the wall.
The weight of the gas presses continuously on every wall equally.
Particles grow until no gaps remain.
The wall creates extra particles at every collision.

Check my progress

Check my progress: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

A text-first particle-model assessment with explicit states, observations, temperatures and particle behaviour.

About 10 minutes

Check my progress

Answer 5 questions. If accepted, this result can contribute to your course progress.

Recent attempts

History is stored only in this browser.

No completed attempts are saved yet.

Check again

Check again: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

A text-first particle-model assessment with explicit states, observations, temperatures and particle behaviour.

About 10 minutes

Check again

Answer 5 questions. If accepted, this result can contribute to your course progress.

Recent attempts

History is stored only in this browser.

No completed attempts are saved yet.

Review

Review: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

A text-first particle-model assessment with explicit states, observations, temperatures and particle behaviour.

About 10 minutes

Review

Answer 5 questions. A scheduled review can contribute to your course progress only when it is due and the result is accepted.

Recent attempts

History is stored only in this browser.

No completed attempts are saved yet.

Course and syllabus information

Course: SEC G3 Physics
Edition: SEC G3 Physics 2027

Check what I know: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

Check what I know: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

Starting check complete

Practise: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

Practice complete

Practise after feedback: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

Practice complete

Check my progress: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

Progress check complete

Check again: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

Progress check complete

Review: Kinetic Particle Model of Matter · G3 Physics and O-Level Physics

Review complete