AQA GCSE Physics Energy Stores and System

AQA GCSE Physics Paper 1

Focus Questions

1. What is meant by a system? A group of ____________. 
2. There are changes in the way energy is stored when a system changes. Describe the energy changes and energy stores in the following examples. 
   1. an object projected upwards
   2. a moving object hitting an obstacle
   3. an object accelerated by a constant force
   4. a vehicle slowing down
   5. bringing water to a boil in an electric kettle.