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1.1 The particle model

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Question 8
F

A gas syringe contains 100 cm3 of air. The end of the syringe is sealed so that no air can get in or out.

The mass of the air in the syringe is 0.12 g.

a.

Calculate the density of the air in g/cm3\text{g/cm}^3g/cm3.

[2]
b.

The plunger is pushed in until the volume of the air is 40 cm3.

Calculate the new density of the air in g/cm3\text{g/cm}^3g/cm3.

[2]
c.

Explain, in terms of particles, why the density of the air increases.

[2]
Markscheme

1.1 The particle model Questions

  1. GCSE
  2. /Physics
  3. /1.1 The particle model

44 exam-style questions on OCR GCSE Physics 1.1 The particle model, covering 1.1.1 Development of the atomic model, 1.1.2 Structure of the atom, 1.1.3 The size of atoms and small molecules, 1.1.4 Density, 1.1.5 Density and the states of matter, and 1.1.6 Density, mass and volume. Each one has a worked solution and a mark scheme showing where the marks go.

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