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IGCSE Physics2.1.1 States of matterQuestion Bank

Question 9

[Maximum number: 1]

In which process does a gas turn into a liquid?

A

boiling

B

condensing

C

freezing

D

melting

Question 9

[Maximum number: 1]

What are the correct terms for each change of state?

liquid to solid

liquid to gas

solidification

condensation

melting

condensation

solidification

evaporation

melting

evaporation

Question 9

[Maximum number: 1]

A man puts some ice into a glass of water on a warm day.
After a short time, he notices that the ice disappears and that water droplets appear on the outside of the glass.

Question image

Which two changes of state are taking place?

A

condensation and freezing

B

condensation and melting

C

boiling and melting

D

freezing and evaporation

Question 9

[Maximum number: 1]

Which statement correctly describes a change of state?

A

A gas condenses to form a liquid.

B

A liquid melts to form a solid.

C

A solid condenses to form a liquid.

D

A solid boils to form a gas.

Question 15

[Maximum number: 1]

A substance can exist in three different states: solid, liquid or gas.
Each of the two statements below describes a change of state.
change 1: Particles move much closer together but continue to travel throughout the substance.
change 2: Particles stop travelling throughout the substance and just vibrate about fixed positions.
Which changes of state do these statements describe?

change 1

change 2

condensation

melting

condensation

solidification

solidification

condensation

solidification

melting

Question 4

[Maximum number: 1]

Fig. 4.1 shows a liquid-in-glass thermometer without a temperature scale. The liquid inside the thermometer has a melting point of 39C-39^{\circ} \mathrm{C}.

Question 4(b)

(a)

A scientist is measuring temperatures at the South Pole. These temperatures have a minimum value of 90C-90^{\circ} \mathrm{C}.

State why the liquid used in the thermometer in Fig. 4.1 would not be suitable for this scientist.

[ 1 ]

Question 5

Question 5(a)

Question 5(a)(ii)

(a)
(i)

Give one example of a change of state which does not involve boiling or evaporation.

[ 1 ]
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