Cambridge IGCSE Physics2.2 Thermal properties and temperature Worksheet
24 questions · 50 marks · Word
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What objectives does this worksheet meet?
Core
- I can describe, qualitatively, the thermal expansion of solids, liquids and gases at constant pressure.
- I can describe some everyday applications and consequences of thermal expansion.
- I can describe melting and boiling in terms of an energy input with no change in temperature.
- I know the melting temperature and the boiling temperature of water at standard atmospheric pressure.
- I can describe evaporation in terms of more-energetic particles escaping from the surface of a liquid.
- I know that evaporation cools a liquid.
Extended
- I can describe a rise in the temperature of an object in terms of a rise in the average kinetic energies of all the particles in the object.
- I can define specific heat capacity as the energy needed per unit mass per unit temperature increase, and I can recall and use the equation c = ΔE/(mΔθ).
- I can describe the differences between boiling and evaporation.
- I can describe how temperature, surface area and air movement over a surface affect evaporation.
- I can explain why an object in contact with an evaporating liquid cools down.