Thermal Energy
NIOS · Class 10 · Science & Tech
Summary of Thermal Energy for NIOS Class 10 Science & Tech. Key concepts, important points, and chapter overview.
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Thermal energy is a form of energy associated with hotness and coldness. Heat can do work and also flows from a body at higher temperature to a body at lower temperature. Temperature measures the degree of hotness or coldness of a body and helps determine the direction of heat flow. Heating can caus
Key Concepts
Heat is a form of energy
Heat is a form of energy. Temperature is the degree of hotness or coldness of a body. Heat flows from higher temperature to lower temperature, so temp
J
J. P. Joule showed that work and heat are equivalent. One Calorie of heat is equivalent to 4.2 Joule of work. Work done against friction is always con
Clinical thermometers measure body temperature
Clinical thermometers measure body temperature, laboratory thermometers measure experiment temperatures, maximum-minimum thermometers record daily ext
The relation among the three scales
The relation among the three scales is (C)/(100) = (F-32)/(180) = (K-273)/(100). This allows conversion from one scale to another.
When a substance changes state
When a substance changes state, heat may be absorbed without a rise in temperature. Latent heat of fusion is the heat needed to convert 1 kg of a soli
Learning Objectives
- Distinguish between heat and temperature
- Explain how heat can do work and how mechanical work can be converted into heat
- Describe the measurement of temperature using different thermometers
- Compare Celsius, Fahrenheit, and Kelvin scales
- Explain latent heat, melting point, boiling point, evaporation, and boiling
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