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Heating and Cooling
Year 8 Heating and Cooling
| Question | Answer |
|---|---|
| The units for measuring temperature. | degrees Celsius (°C) |
| A form of energy, measured in joules. | heat energy |
| The units for measuring energy. | joules (J) |
| How hot something is, measured in °C. | temperature |
| Another name for heat energy. | thermal energy |
| The way heat travels through solids. | conduction |
| A material which lets energy flow through it easily. | conductor |
| A material which does not let energy flow through it easily. | insulator |
| To take in energy. | absorb |
| Get smaller. | contract |
| The transfer of heat in fluids. | convection |
| A current created by heat causing changes in the density of a fluid. | convection current |
| To give out energy. | emit |
| Get bigger. | expand |
| A gas or a liquid. | fluid |
| A type of wave in the electromagnetic spectrum. It can travel through transparent things and a vacuum (empty space). | infrared radiation |
| Any substance. | medium |
| The force caused by particles hitting a certain area. | pressure |
| The transfer of heat energy by electromagnetic waves. | radiation |
| A material that does not let heat energy flow through it easily. | heat insulator |
| When a liquid is at its point it is as hot as it can get. It is evaporating as fast as it can. | boiling point |
| When a gas turns into a liquid. | condense |
| When a liquid turns into a gas. | evaporate |
| Something made of particles that are very spread out and not attached to each other. A gas does not have a fixed shape or volume and is easy to squash. | gas |
| The hotter something is, the more of this type of energy it has. | heat energy |
| Something made of particles that are fairly close together, but attached weakly so that they can move past each other. It has a fixed volume but not a fixed shape. | liquid |
| When a solid turns into a liquid. | melt |
| Something made of particles that are very close together and attached so that they cannot move past each other. It has a fixed shape and volume. | solid |
Created by:
Zigs.uk
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