IGCSEScienceCambridge (CIE)Co-ordinated Sciences (Double Award)PhysicsExam Questions2. Thermal PhysicsKinetic Particle Model of Matter

Kinetic Particle Model of Matter (Cambridge (CIE) IGCSE Co-ordinated Sciences (Double Award): Physics): Exam Questions

Exam code: 0654 & 0973

1 hour17 questions

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Kinetic Particle Model of Matter

Easy
Medium
1a
4 marks

Table 6.1 gives a list of statements about molecules in gases and solids.

table

Put one tick in every row to indicate whether each statement refers to a gas or a solid.

How did you do?

1b
4 marks

Fig. 6.1 represents a smoke particle in air. The smoke particle is moving.

molecules

Fig. 6.2 shows the path of the smoke particle and the position of the smoke particle a short time later.

molecules2

(i) State the term given to the movement of the smoke particle.

[1]

(ii) State what the motion of the smoke particle shows about air molecules.

[3]

How did you do?

2a
2 marks

A student draws diagrams that represent three states of matter, as shown in Fig. 4.1.

  Box B shows the arrangement of particles in a liquid.

18p3-2b

(i) In box A, draw the arrangement of particles in a solid.

[1] 

(ii) In box C, draw the arrangement of particles in a gas.

[1]

How did you do?

2b
2 marks

Write the correct term for each change of state below each arrow in Fig. 4.2.

 

18p3-3a

Fig. 4.2

How did you do?

2c
3 marks

A wet beaker is in a warm room. After several hours the beaker is dry.

  State and explain what happens to the water. Use your ideas about molecules in your answer.

How did you do?

3a
3 marks

All matter is made up of atoms and molecules.

Describe the arrangement, separation and motion of gas molecules.

How did you do?

3b
3 marks

The motion of smoke particles in air can be observed using a smoke cell and microscope.

Fig. 7.1 shows the arrangement.

screenshot-2022-10-20-at-10-09-23

Smoke is placed inside the glass smoke cell. Light enters from the side of the smoke cell.

A student looks through the microscope. She sees tiny spots of light moving. Each spot of light is a smoke particle.

Fig. 7.2 represents the path of a smoke particle seen in the eyepiece of the microscope.

screenshot-2022-10-20-at-10-10-54

(i) On Fig. 7.2, continue the path of the smoke particle.

[2] 

(ii) State the term used to describe the movement of the smoke particle.

[1]

How did you do?

1
4 marks

Extended Tier Only

Fig. 5.1 shows the apparatus used to observe the motion of smoke particles that are in the air in a box.

feb-march-2018-42-q5

Light from a lamp enters the box through a window in one side of the box. The smoke particles are observed using a microscope fixed above a window in the top of the box.

(i) The motion of a single smoke particle is observed through the microscope.  

In the circle shown, sketch the path of this smoke particle.

[1]  

feb-march-2018-42-q5-2

(ii) Explain why the smoke particle follows the path that is observed.

[3]

How did you do?

2a
4 marks

Extended Tier Only

Fig. 4.1 shows a smoke cell. The cell contains smoke particles and air molecules. It is lit from the side. A student views the motion of smoke particles in the cell by using a microscope.

q4a

Describe and explain what the student sees when viewing the smoke particles through the microscope.

How did you do?

2b
3 marks

Drops of water on a warm surface disappear after a short time. State the term used to describe this process. Explain the process, using your ideas about molecules.

name of process: .........................................

  explanation: ................................................

How did you do?

3a
4 marks

Extended Tier Only

Some gas molecules are in a box at room temperature.

Fig. 3.1 shows the position of some of the molecules and the direction of movement of each molecule.

cie-2020-31-5

(i) Describe the movement of the gas molecules.

[2]

(ii) Describe how the molecules exert a pressure on the walls of the box.

[2]

How did you do?

3b
1 mark

The gas in Fig. 3.1 is cooled. The gas turns into a liquid then into a solid.

State how the average separation of molecules in the gas is different from the average separation of molecules in the solid.

How did you do?

4a
3 marks

Describe the movement of the molecules in

(i) a solid.

[1]

(ii) a gas.

[2]

How did you do?

4b
4 marks

Extended tier only

A closed box contains gas molecules.

Explain, in terms of momentum, how the molecules exert a pressure on the walls of the box.

How did you do?

5a
2 marks

Fig. 4.1 represents an atom.

0Y72BVCS_q4

Representing atoms by circles approximately the same size as in Fig. 4.1, sketch

 (i) on Fig. 4.2, the arrangement of atoms in a crystalline solid

[1]

(ii) on Fig. 4.3, the arrangement of atoms in a gas.

W1NIwyd~_q4a

[1]

How did you do?

5b
3 marks

Extended Tier Only

(i) Describe the motion of the atoms in a solid.

[1]

(ii) A sculptor makes a statue from a block of crystalline rock using a cutting tool.

Explain why he must apply a large force to the tool to remove a small piece of rock.

[2]

How did you do?

5c
2 marks

Extended Tier Only

A helium-filled balloon in the room of a house suddenly bursts.

State and explain, in terms of atoms, what happens to the helium from the balloon after the balloon has burst.

How did you do?