PHYSICS: Energy
| Front | What is elastic potential energy stores? |
| Back | Elastic potential energy stores describe the energy stored in a springy object when you stretch or squash it |
| Front | What is wasted energy? |
| Back | Wasted energy is the energy that is not useful energy and is transferred by an undesired pathway. Useful energy is energy in the place we want it and in the form need it. |
| Front | What are the impacts of coal? |
| Back | Burning produces greenhouse gases and contributes to acid rainReliable output |