States of Matter

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Kinetic particle theory

Subtopic

Kinetic particle theory under States of Matter for Grade 12 IGCSE.

About Topic & Revision

Preview questions (no answers)

1.
$When a gas is cooled, its particles lose energy. What is the eventual result of this cooling?$
A. $The particles move further apart$
B. $The particles move closer together and may eventually condense$
C. $The particles increase in speed$
D. $The particles disappear$
2.
$Which of the following is not a property of a gas?$
A. $It can flow$
B. $It has a high density$
C. $It is easily compressed$
D. $It fills its container$
3.
$Which observation provides direct evidence that matter is made of moving particles?$
A. $Ice is cold to the touch$
B. $A liquid has a fixed volume$
C. $Diffusion of a colored gas$
D. $A solid has a regular shape$

Download the worksheet for States of Matter - Kinetic particle theory to practice offline. It includes additional chapter-level practice questions.

Diffusion

Subtopic

Diffusion under States of Matter for Grade 12 IGCSE.

About Topic & Revision

Preview questions (no answers)

1.
$If gas A has a molecular mass of 32 and gas B has a molecular mass of 16, which statement is true?$
A. $Gas A diffuses twice as fast as Gas B.$
B. $Gas B diffuses faster than Gas A.$
C. $Gas A and Gas B diffuse at the same rate.$
D. $Gas B cannot diffuse because it is too light.$
2.
$Which of these is an example of diffusion in everyday life?$
A. $Water boiling in a kettle$
B. $Sugar dissolving and spreading in a cup of tea without stirring$
C. $Ice melting in a drink$
D. $A balloon popping$
3.
$What type of motion is primarily responsible for diffusion in gases?$
A. $Vibrational motion$
B. $Translational (random) motion$
C. $Rotational motion in a fixed spot$
D. $No motion at all$

Download the worksheet for States of Matter - Diffusion to practice offline. It includes additional chapter-level practice questions.

Changes of state

Subtopic

Changes of state under States of Matter for Grade 12 IGCSE.

About Topic & Revision

Preview questions (no answers)

1.
$Which of the following defines the 'Boiling Point' of a liquid?$
A. $The temperature at which it starts to evaporate$
B. $The temperature at which its vapor pressure equals atmospheric pressure$
C. $The temperature at which it turns into a solid$
D. $The temperature at which its particles stop moving$
2.
$Which state of matter has the strongest attractive forces between its particles?$
A. $Liquid$
B. $Gas$
C. $Solid$
D. $Vapor$
3.
$What happens to the motion of particles in a solid as it is cooled?$
A. $They vibrate faster$
B. $They vibrate more slowly$
C. $They start to slide past each other$
D. $They stop moving immediately$

Download the worksheet for States of Matter - Changes of state to practice offline. It includes additional chapter-level practice questions.

States of Matter - Grade 12 Chemistry (IGCSE) | Krit.club