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Heat/Energy Review
| Question | Answer |
|---|---|
| Fahrenheit | The measurement unit for temp. used in the US |
| Conduction | Heat transfer through solids-by colliding(direct contact, touch |
| Radiation | Heat transfer through space |
| Heat Mover | Moves thermal energy from one place to another |
| Heat Engine | Device that converts thermal energy to mechanical energy |
| Insulator | Material that heat does not flow easily through |
| Potential Energy | Energy that is stored due to position |
| Kelvin | Unit used to measure very cold temperature |
| Joule | Unit used to measure energy |
| kinetic energy | Energy of motion |
| Conductor | Material that allows heat to flow easily |
| gravitational Potential | Energy stored in object above the Earth's surface(rock on mountain) Ex: Apple falls out of a tree |
| Law of Conservation of Energy | Energy changes form but none is lost-energy remains constant |
| Absolute Zero | Temp where molecules slow to almost stop |
| Sun bather | Radiation |
| iron on clothes | Conduction |
| soda can burns my hand | Conduction |
| sitting near a fire | Radiation |
| the current crated by warm air rising and cold air sinking | Convection |
| Air rising up the chimney | Convection |
| snow melting in your hand | conduction |
| Nuclear fission | Nucleus splitting |
| fusion | Nucleus coming together |
| what is being created in a nuclear reaction | Energy |
| what 2 factors determine potential energy | Height and mass |
| what is the phase change called when a substance changes from a solid to a liquid | Melting |
| Does the temperature increase during melting? What happens to the heat energy . | no, increases |