Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Science 7 Unit 6
Thermal Energy
| Term | Definition |
|---|---|
| Temperature | is the average amount of kinetic energy of the particles in a substance |
| Thermal Energy | is the total energy of all the particles in an object |
| Heat | is a flow of energy between objects at different temperatures |
| Conduction | the transfer of heat energy by molecules touching each other |
| Convection | heat is transferred by movement of currents within a fluid. Particle rise and fall because of density differences. Example: Air Current (hot rises, cold sinks) |
| Radiation | is the transfer of energy by electromagnetic waves. Example: Sunlight reaching earth (Does not need particles to transfer heat) |
| thermal equilibrium | all the objects will eventually have the same temperature |
| thermometer | how temperature is measured: as particles hit the thermometer they collide and cause the thermometer's particles to move faster too. The fluid in the thermometer will expand if the particles are moving faster and a higher temperature will be recorded |
| endothermic | the molecules absorb energy from the environment to make the phase change occur |
| exothermic | the molecules release energy to the environment to make the phase change occur |
| melting | the change of a solid to a liquid by absorbing heat |
| freezing | the change of a liquid to a solid by releasing heat |
| evaporation | the change of liquid to a gas by absorbing heat (only occurs on the surface) |
| boiling | the change of a liquid to a gas by absorbing heat (occurs throughout) |
| condensation | the change of a gas to a liquid by releasing heat |
Created by:
user-1901406
Popular Chemistry sets