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Thermal Energy

Thermal Energy. What is it and how do we measure it?. Thermal Energy. It is Heat Transferred from one substance to another Determined by measuring the change in temperature of a substance Can be found using a known mass of water as an absorber. Measuring.

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Thermal Energy

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  1. Thermal Energy What is it and how do we measure it?

  2. Thermal Energy • It is Heat • Transferred from one substance to another • Determined by measuring the change in temperature of a substance • Can be found using a known mass of water as an absorber

  3. Measuring • Heat is measured using the unit- calorie • calorie- amount of heat needed to raise the mass of 1 gram of water by 1ºC • Different than food calorie • Kilocalorie is the food Calorie and is 1,000 calories or the amount of heat needed to raise 1kg or water by 1ºC • It is written as Calorie with a capital C

  4. Calculating Thermal Energy • What you Need to Have • Mass • Change in Temperature • Specific Heat of Substance

  5. Specific Heat • Some substances take more energy than others to change temperatures • They have a higher specific heat • Specific Heat is the capacity for storing energy • It is different for each substance • For water it is high- 1cal/gºC

  6. q = m x c x T • q= thermal energy or heat in calories • m= mass in grams • c= specific heat in calories divided by (grams x degrees celcius) • T= change in temperature, which is the difference between your ending and beginning temperature

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