1. Physics Chapter 3 – Particle model of matter – particle model, changes of state, internal energy and motion in gases.
Draw the particle model of matter to show solid, liquids and gases.
Define the terms:
Sublimation
Evaporation
Melting
Freezing
Boiling
Condensation
Deposition
Describe the properties of solids, liquids and gases.
Draw the triangle showing the changes of states and state the name of the change.
Define gas pressure and describe the affect of temperature on a gases pressure when the mass and volume of gas is kept constant.
Define internal energy
Sketch a graph to show a temperature time graph for heating water. (starting as ice) Label your graph to show the changes of state and the state.
Describe why changes of states occurs in:
Liquid cooling into a solid
Liquid turning into a gas
Describe how a temperature change can affect internal energy.

2. Physics Chapter 3 – Particle model of matter – specific heat capacity and latent heat
Define specific heat capacity.
Define specific latent heat.
Describe what this graph is showing.
Write the equation, including units, for specific heat capacity.
Write the equation, including units, for specific latent heat.
Define the terms:
Latent heat of fusion
Latent heat of vaporisation
Rearrange the equation to have c as the focus.
Rearrange the equation to have L as the focus.
A change in thermal energy of 21kJ was supplied to a 5kg block of ice and its temperature raised from -21oC to -9oC. Calculate the specific heat capacity of the ice. Show your working out.
Calculate the energy change for when water turns from ice to water when it has a mass of 100g and a latent heat of J/kg. Show your working out.
Use both equations. Calculate the energy transferred when 350g of ice cubes at 0oC are changed to steam at 100oC. Show your working out.

3. Physics Chapter 3 – Particle model of matter – density, RP and maths skill
Define density.
Describe a method used to investigate the density for both regular (e.g. a cube) and irregular (e.g. a fork) shaped objects.
Independent variable –
Dependent variable –
Control variables -
Write the equation, including the units, for density.
Write a risk assessment for this practical. Include the risk, hazard and control for at least 1 risk.
Calculate the density of a block of aluminium that is 560kg with a volume of 5m3. Show your working out.
Sketch a graph to show the heating of paraffin wax for when it changes state from a solid to a liquid and then heating continues. Label the graph.
Calculate the density of a block of wood which a length of 4cm, height of 4cm and a width of 4cm. The mass is 8g. Show your working out.
Calculate the density of a cork which has a mass of 8.2g and displaces 15cm3 of water. Show your working out.