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Group C1 NW GW - Temperature, Thermal Energy, and Heat (Specific Heat…
Group C1 NW GW - Temperature, Thermal Energy, and Heat
Temperature
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Measuring Tempurature
When a tube is heated the particles of the liquid speed up, so they take up more space.
Temperature Scales
Three common scales for measuring temperature are the Fahrenheit, celsius, and kelvin scales.
On the Celsius scale the freezing point of water is 0 degrees, and the boiling point is 100 degrees.
The kelvin scale, the units are the same size of degree on the Celsius scale.
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The freezing point of water on the kelvin scale is 273K, and the boiling point is 373K.
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Thermal Energy and Heat
Thermal energy and heat are closely related, but they are different.
Thermal Energy
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The thermal energy of an object depends on the number of particles, the temperature, and the number of particles in the object.
Heat
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Thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature is called heat.
Since work and heat are both energy transfers, they are both measured in joules.
Ex: When you hold an ice cube, you are transferring the heat from your hand to the ice cube.
Specific Heat
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The amount of heat required to to raise the temperature of an object depends on the object's chemical makeup.
the amount of energy required to raise the temperature of 1 kilogram by 1 kelvin is called specific heat
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A material with a high specific heat can absorb a lot of thermal energy without a lot of change in temperature.