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2.1 Kinetic particle model of matter

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Question 20
a.

Match each description with the correct state of matter.

Write the correct letter in the table.

  • P – Particles are far apart and move rapidly in all directions.
  • Q – Particles are closely packed in a regular arrangement and vibrate about fixed positions.
  • R – Particles are close together but can slide/move past each other in random directions.
State of matterDescription letter
solids
liquids
gases
[3]
b.

Some students heat a solid sample of wax in a test tube. They measure the temperature every minute. They heat the wax for 10 minutes until it begins to melt, and then continue to heat it for a further 6 minutes while it changes from a solid to a liquid.

Describe and explain how the temperature of the wax changes during these 16 minutes.

[4]
Markscheme

2.1 Kinetic particle model of matter Questions

  1. IGCSE
  2. /Physics
  3. /2.1 Kinetic particle model of matter

321 exam-style questions on CIE IGCSE Physics 2.1 Kinetic particle model of matter, covering 2.1.1 States of matter and changes of state, 2.1.2a Particle structure and motion in solids, liquids and gases, 2.1.2b Gas pressure and particle collisions, 2.1.2c Brownian motion, 2.1.3a The absolute scale of temperature, and 2.1.3b Pressure, volume and temperature of a gas. Each one has a worked solution and a mark scheme showing where the marks go.

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