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WorksheetsCh2.1 & 2.2 Quiz
Total questions: 16
Worksheet time: 10mins
Which of the following physical states of water can be found in the above photo?
(1) solid
(2) liquid
(3) gas
(1) only
(1) and (2) only
(1) and (3) only
(1), (2) and (3)
Melting is
the change of liquid state to solid state at any temperature.
the change of liquid state to solid state at a fixed temperature.
the change of solid state to liquid state at any temperature.
the change of solid state to liquid state at a fixed temperature.
After raining, wet road will gradually become dry because of
boiling
evaporation
melting
condensation
Evaporation takes place slower
(1) under windy conditions.
(2) at lower temperature.
(3) when there is a smaller area of exposure.
(1) and (2) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
Wet hair dry more quickly when hairdryer is used because
(1) there is more airflow.
(2) the temperature is higher.
(3) more surface area is exposed.
(1) and (2) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
Which of the following substances is insoluble in water?
Jelly powder
Salt
Sugar
Glass
Most of the fresh water we use in Hong Kong comes from
rain water.
Dongjiang water
sea water
Which of the following is INCORRECT about freezing?
It is the change of a liquid to solid at a fixed temperature.
The process of freezing releases energy.
The temperature decreases when water freezes and becomes ice.
Freezing points of liquids are different.
Washed dishes can dry more quickly when
(1) they are placed in front of a fan.
(2) the days are hotter than usual.
(3) they are covered with wet cloths.
(1) and (2) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
The picture shows two forms of sugar — sugar cube and granulated sugar.
Granulated sugar dissolves faster in water because
it has a higher solubility than sugar cubes.
it has a higher mass compared with sugar cube.
it has a larger surface area compared with sugar cube.
it has a larger volume compared with sugar cube.
Which of the following is INCORRECT about solubility?
Solubility is the maximum amount of solute that can dissolve in a particular amount of solvent.
Solubility is higher when more solutes are added to the solvent.
The solubility of a substance changes with temperature.
Different substances have different solubilities in water.
Water can change into gas without boiling in a process called
condensation
freezing
boiling
evaporation
In the water cycle in Nature, where does the water vapour come from?
(1) rivers
(2) seas
(3) ponds
(4) land
(1) and (2) only
(2) and (4) only
(1), (2) and (3) only
(1), (2), (3) and (4)
Under which of the following factors will the rate of evaporation decrease?
(1) larger surface area exposed
(2) lower temperature
(3) windy environment
(1) only
(2) only
(1) and (2) only
(1), (2) and (3)
Some ponds in Hong Kong dried up in very hot summer. The phenomenon is due to
condensation
boiling
filtration
evaporation
Which of the following are solutions?
(1) Water
(2) Apple juice
(3) Soup
(1) and (2) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
