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WorksheetsKinetic Particle Theory
Total questions: 26
Worksheet time: 23mins
Which of the following is a correct description for solids?
closely arranged and in fixed positions
closely arranged and vibrate in fixed positions
closely arranged and can move around
When something goes from gas to liquid, it is called...
Evaporation
Condensation
Deposition
Freezing
Something that goes from liquid to gas is...
Evaporation
Melting
Freezing
Sublimation
This diagram represents particles in a ______________ state.
Solid
Liquid
Gas
The particles of a substance gain energy and change from a regular ordered structure to a disordered structure with large distances between the particles. Which change of state is described?
boiling
evaporation
melting
sublimation
In which changes do the particles move further apart?
W and X
W and Z
X and Y
Y and Z
The diagram shows a sugar lump in a cup of tea. Which two processes must happen to spread the sugar evenly in the tea?
First process: diffusion; Second process: dissolving
First process: dissolving; Second process: diffusion
First process: dissolving; Second process: melting
First process: melting; Second process: diffusion
Two gas jars each contain a different gas. The gas jars are connected and the cover slips are removed. The diagram shows what happens to the particles of the gases. Which process has occurred?
chemical reaction
condensation
diffusion
evaporation
Which diagram shows the process of diffusion?
A
B
C
D
The diagrams show the arrangement of particles in three different physical states of substance X. Which statement about the physical states of substance X is correct?
Particles in state 1 vibrate about fixed positions.
State 1 changes to state 2 by diffusion.
State 2 changes directly to state 3 by condensation.
The substance in stage 3 has a fixed volume.
The diagram shows how the molecules in the exhaust gases diffuse into the air. Which statement describes what happens to these molecules next?
The molecules fall to the ground because they are heavier than air molecules.
The molecules go back together as they cool.
The molecules spread further into the air.
The molecules stay where they are.
When there is no wind, the scent of flowers can be detected more easily on a warm evening than on a cold evening. This is because the molecules of the scent ……1…… ……2…… than in colder conditions. Which words correctly complete gaps 1 and 2?
A
B
C
D
‘Particles moving very slowly from an area of higher concentration to an area of lower concentration.’ Which process is being described?
a liquid being frozen
a solid melting
a substance diffusing through a liquid
a substance diffusing through the air
Which statement is an example of diffusion?
A kitchen towel soaks up some spilt milk.
Ice cream melts in a warm room.
Pollen from flowers is blown by the wind.
The smell of cooking spreads through a house.
An attempt was made to compress a gas and a solid using the apparatus shown. Which substance would be compressed and what is the reason for this?
Substance = gas; reason = the gas particles are close together
Substance = gas; reason = the gas particles are far apart
Substance = solid; reason = the gas particles are close together
Substance = solid; reason = the gas particles are far apart
What are the processes W, X, Y and Z in the following diagram?
W = condensing; X = boiling; Y = freezing; Z = melting
W = condensing; X = freezing; Y = melting; Z = boiling
W = melting; X = boiling; Y = freezing; Z = condensing
W = melting; X = freezing; Y = condensing; Z = boiling
In which substance are the particles close together and slowly moving past each other? Which statement must be correct?
air
ice
steam
water
Oxides of nitrogen from car exhausts can spread through the atmosphere. This occurs because gas molecules move from a region of ……1…… concentration to a region of ……2…… concentration by a process called ……3…… . Which words correctly complete the gaps?
1 = high; 2 = low; 3 = diffusion
1 = high; 2 = low; 3 = evaporation
1 = low; 2 = high; 3 = diffusion
1 = low; 2 = high; 3 = evaporation
