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Energy
Question | Answer |
---|---|
Energy | The ability to do work. |
Potential Energy | Energy that is stored. |
Kinetic Energy | Energy that is in motion. |
Law of Conservation of Energy | Energy can be neither created nor destroyed. It is transferred from one form to another. |
Gravitational potential energy | Potential energy based by the weight and height of an object. GPE = Weight times height. |
Thermal Energy | All the kinetic energy due to the motion of particles in an object (Heat) |
Chemical Energy | Energy of a compound that changes as its atoms are rearranged (Food, Battery) |
Electrical Energy | Energy of moving electrons. |
Sound Energy | Energy caused by an object's vibrations. |
Light Energy (Radiant) | Energy formed by electromagnetic waves. Energy that can be seen. |
Nuclear Energy | Energy produced by changes in the nucleus. |
Conduction | Transfer of thermal energy by direct contact. (Jiffy Pop, pot on a stove) |
Convection | Transfer of thermal energy by circulation or movement of air or liquids. (Hot air popper, boiling water) |
Radiation | Transfer of thermal energy by electromagnetic waves. (Microwave, light) |
Thermal Conductor | Material through with energy can be transferred easily (steel, copper) |
Thermal Insulator | Material that reduces or prevents the transfer of heat (wood, Styrofoam) |
Joule | Standard unit of energy. |
Elastic Potential Energy | Energy stored in elastic (rubber band) |
Celsius | Standard unit used for temperature where freezing is 0 degrees and boiling is 100 degrees. |
Fahrenheit | Unit of measuring temperature where freezing is 32 degrees and boiling is 212 degrees. |
Kelvin | A scale of temperature beginning at absolute zero (−273.15°C or −459.67°F). |
Temperature | a measure of the average kinetic energy of the particles in an object |
Mechanical Energy | potential plus kinetic energy |
Heat | the energy transferred between objects that are at different temperatures |
Absolute zero | the temperature at which molecular motion stops ( 0 Kelvin) |