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Thermal Energy &Heat
Key terms & study info for heat unit
Question | Answer |
---|---|
The total amount of energy in the particles of an object | Thermal Energy |
The measure of the average amount of energy of the particles of an object | Temperature |
The Temperature at which no more energy can be removed from matter | Absolute Zero |
Thermal energy that is transferred from one object to another | Heat |
The transfer of heat by movement of a fluid | Convection |
The transfer of heat from one particle to another by direct contact | Conduction |
The transfer of energy by electromagnetic waves | Radiation |
The movement of a fluid caused by differences in temperature that transfers heat from one part of the fluid to another | Convection Current |
A material that does not conduct heat well | insulator |
A material that conducts heat well | Conductor |
In what direction is heat always transferred? | From a warmer object to a cooler object |
The state when two objects reach the same temperature | Equilibrium |
What happens to the molecules in a substance as it is heated? | They move faster |
Which is a better conductor of heat, metal or plastic? | Metal |
Which is a better insulator, glass or cotton? | Cotton |
What causes the frying pan on a stove to get hot? | Conduction |
What causes a can of soda to get warm if you leave it in the sun? | Radiation |
What happens to the volume (size) of a substance as it is heated? | It Expands |
What type of heat transfer causes warm air to rise? | Convection |
Why would a winter coat be made of wool instead of plastic? | Wool is a better insulator and will keep you warm |