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Chapter 6
Vocab
Term | Definition |
---|---|
Freezing | Changing from liquid to solid |
Evaporation/Vaporization | Changing liquid to gas |
Energy | The ability to move matter |
Kinetic energy | Energy of a moving object |
Potential energy | Energy in a stored object (Energy of an object sitting still) |
Temperature | Average kinetic energy of molecules which tell us how hot or cold something is. Measures heat |
Heat | A form of energy that flows between two objects that have different temperatures |
Radiation | Transfer of energy by electromagnetic waves (Sun) |
Conduction | Movement of energy through direct contact(solids) |
Convection | Transfer of energy by flow of a liquid or a gas |
Insulation | Preventing heat from flowing in or out of a material(poor conductor) |
Thermal expansion | Matter expands when the temperature is raised |
Pressure | The force on each unit of area of a surface |
Melting | Changing from solid to liquid |
Condensation | Changing from gas to liquid |
Forms of energy | Solar, wind, geothermal, nuclear, hydroelectric |
Solar cell | Captures sunlight to make energy |
Hydroelectricity | Electricity from falling water |
Geothermal energy | Energy from heat within the Earth |
Nuclear energy | Energy from atoms colliding or being split apart |
Wind energy | Energy collected from big turbines standing tall |