Physics

5. Solids, Liquids & Gases
5.1 Density and Pressure>5.2 Change of State>5.3 Ideal Gas Molecules>

1. Forces & Motion

1.1 Movement and Position >1.2 Forces, Movement, Shape and Momentum >

2. Electricity

2.1 Mains Electricity >2.2 Energy and Voltage in Circuits >2.3 Energy Charge >

3. Waves

3.1 Properties of Waves >3.2 The Electromagnetic Spectrum >3.3 Light and Sound >

4. Energy Resources & Energy Transfers

4.1 Energy Transfers >4.2 Work and Power >4.3 Energy Resources and Electricity Generation >

6. Magnetism & Electromagnetism

6.1 Magnetism >6.2 Electromagnetism >6.3 Electromagnetic Induction >

7. Radioactivity & Particles

7.1 Radioactivity >7.2 Fission and Fusion >

8. Astrophysics

8.1 Motion in the Universe >8.2 Stellar Evolution >8.3 Cosmology >

5.1 Density and Pressure

5.1.1 Use the following units: degree Celsius (°C), Kelvin (K), joule (J), kilogram (kg), kilogram/metre3 (kg/m3), metre (m), metre2 (m2), metre3 (m3), metre/second (m/s), metre/second2 (m/s2), newton (N) and pascal (Pa)

Temperature – degrees celsius (°C)

Temperature – kelvins (K)

Energy – joules (J)

Mass – kilograms (kg)

Density – kilograms per cubic metre (kg/m3)

Distance – metres (m)

Area – metres squared (m2)

Volume – cubic metre (m3)

Velocity – metres per second (m/s)

Acceleration – metres per second squared (m/s2)

Force – newtons (N)

Pressure – pascals (Pa)

5.1.2P Use the following unit: joules/kilogram degree Celsius (J/kg °C)

Specific heat capacity is the amount of energy required to raise the temperature of one kilogram of a substance by one degree celsius

Specific heat capacity = joules per kilogram degree celsius (J/kg°C)

5.1.3 Know and use the relationship between density, mass and volume:

5.1.4 Practical: investigate density using direct measurements of mass and volume

5.1.5 Know and use the relationship between pressure, force and area:

5.1.6 Understand how the pressure at a point in a gas or liquid at rest acts equally in all directions

5.1.7 Know and use the relationship for pressure difference:

pressure difference = height × density × gravitational field strength