| A | B |
|---|
| Conduction happens in | solids, liquids and gases |
| Convection happens in | liquids and gases |
| Radiation | is energy carried by waves |
| Conduction | is passing on vibrations |
| Convection | is heat rising and cooling in circles |
| Thermal radiation is also called | infra-red |
| Glass prisms split white light into a | spectrum |
| The best absorber of thermal radiation is a | dull black surface |
| Shiny silver surfaces | are the best reflectors of thermal radiation |
| Metals | are good conductors |
| Conservation of energy | tells us that energy cannot be created or destroyed |
| Wasted energy | is energy that is not usefully transferred or transformed |
| Weight is measured in | Newtons |
| Efficiency = | Useful energy / total energy |
| Hydroelectric power stations use | Water |
| Solar power uses | Sunlight |
| Non-renewable energy uses | Coal, oil and gas |
