Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. What is meant by the term 'internal energy', in terms of particles?
   • Energy is stored inside a system by the Particles (atoms and molecules) that make up the system. This is called internal Energy.
2. If the temperature of a system increases, what three different things does the increase in temperature depend on?
   • If the temperature of the system increases, the increase in temperature depends on the mass of the substance heated, the type of material and the Energy input to the system.
3. What is meant by the term 'internal energy', in terms of kinetic and potential energy?
   • Internal Energy is the total kinetic Energy and potential Energy of all the Particles (atoms and molecules) that make up a system.
4. What effect does heating change have on the energy stored within the system or state of matter?
   • Heating changes the Energy stored within the system by increasing the Energy of the Particles that make up the system. This either raises the temperature of the system or produces a change of state.