GCSE Physics - Particle Model of Matter - 1 - Exam Style Questions with Answers

Created on February 17, 2023 By

paruppts12

GCSE_AQA_PHY_3_PARTICLE_1

1 / 10

A

C

B

2 / 10

Figure 1 shows water being heated. Eventually the water changed into steam
Complete the sentences.
The distance between the particles in steam is __________________________ the
distance between the particles in liquid water.
The density of steam is __________________________ the density of liquid water.

the same as ; the same as

greater than ; the same as

greater than; less than

less than; less than

3 / 10

0.270

0.027

2.70

0.0027

4 / 10

Two students investigated the change of state of stearic acid from liquid to solid.
They measured how the temperature of stearic acid changed over 5 minutes as it changed from liquid to solid.
Figure 1 shows the different apparatus the two students used.
Student B removed the thermometer from the liquid each time he took a temperature reading.
What type of error would this cause?

A systematic error

A zero error

A random error

5 / 10

The figure below shows a Bunsen burner heating some water in a beaker.
Eventually the water changes into steam.
How is the particle model used to explain the difference in density between a liquid and a gas?

Particles in a gas have more potential energy than particles in a liquid.

Particles in a liquid are larger than particles in a gas.

Particles in a liquid are further apart than particles in a gas.

Particles in a gas have less kinetic energy than particles in a liquid.

6 / 10

Another way to keep roads clear of ice is to spread salt on them.
When salt is added to ice, the melting point of the ice changes.
A student investigated how the melting point of ice varies with the mass of salt added.
The figure below shows the equipment that she used.
The student added salt to crushed ice and measured the temperature at which the ice melted.
During the investigation the student stirred the crushed ice.
Suggest two reasons why

To raise the melting point of the ice

To distribute the salt throughout the ice

To lower the melting point of the ice

To reduce energy transfer from the surroundings to the ice

7 / 10

Two students investigated the change of state of stearic acid from liquid to solid.
They measured how the temperature of stearic acid changed over 5 minutes as it changed from liquid to solid.
Figure 1 shows the different apparatus the two students used.
Choose one advantages of using student A’s apparatus.

Student A’s measurements had a higher resolution.

Student B’s apparatus only measured categorise variables.

Student A’s apparatus made sure the test was fair.

8 / 10

X

Y

Z

9 / 10

A student investigated the cooling effect of evaporation.
She used the equipment (data logger and probe) shown in Figure 1 to measure how the temperature of a liquid changed as the liquid evaporated.
Which type of variable was the temperature in this investigation?

independent

dependent

control

10 / 10

The figure shows a balloon filled with helium gas.
What name is given to the total kinetic energy and potential energy of all the particles of helium gas in the balloon?

Internal energy

External energy

Movement energy

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