vocab.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Thermal Energy | the sum of the Kinetic and Potential energy of a material.
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| Temperature | represents the average kinetic energy of the particles that make up a material. The greater the average kinetic energy of particles the greater the temperature.
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| Fahrenheit scale | water freezes at 32 degrees and boils at 212 degrees
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| Celsius scale | water freezes at 0 degrees and boils at 100 degrees (the Celsius scale is used by scientists worldwide.
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| Kelvin scale | water freezes at 273 K and boils at 373 K. The lowest possible temperature for any material is 0 K.
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| Heat | is the movement of thermal energy from a warmer object to a cooler object.
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| Radiation | the transfer of thermal energy from one material to another by electromagnetic waves. All matter including the Sun transfers thermal energy by radiation.
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| Conduction | the transfer of thermal energy between materials by the collisions of particles. Conduction continues until the thermal energy of all particles in contact is equal.
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| Thermal conductors | material through which thermal energy flows easily. Example: medals
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| Thermal insulators | material through which thermal energy does not flow easily. Ex: cloth
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| Specific Heat | amount of thermal energy required to increase the
temperature of 1 kg of a material by 1 degrees Celsius. All materials have a specific heat.
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| Thermal Contraction | is a decrease in a materials volume when its temperature decreases.
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| Thermal Expansion | is a increase in a materials volume when its temperature increases.
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| Convection | is the transfer of thermal energy by the movement of particles from one part of a material to another. Only occurs in fluids.
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| Convection Currents | movement of fluids in a cycle because of convection.
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| What plays a major rule in Earths Climate? | Convection currents
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| Heating Appliance | a device that converts electric energy into thermal energy. Examples: curling iron, coffeemakers
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| Thermostat | a device that regulates the temperature of a system. Example: refrigerator, toasters
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| Refrigerator | device that uses electric energy to transfer thermal energy from a cooler location to a warmer location.
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| Heat Engine | a machine that converts thermal energy into mechanical energy.
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Created by:
rdeller
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