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Questions and Answers
Which of the following is NOT a method of heat transfer?
Which of the following is NOT a method of heat transfer?
- Conduction
- Radiation
- Convection
- Mechanical work (correct)
Specific heat capacity is the amount of heat required to change the temperature of one gram of a substance by one degree Celsius.
Specific heat capacity is the amount of heat required to change the temperature of one gram of a substance by one degree Celsius.
True (A)
What is the phenomenon called when a solid turns into a liquid?
What is the phenomenon called when a solid turns into a liquid?
melting
The three primary types of nuclear radiation are _____, _____, and _____ decay.
The three primary types of nuclear radiation are _____, _____, and _____ decay.
Match the following types of heat transfer with their descriptions:
Match the following types of heat transfer with their descriptions:
Flashcards
Heat Transfer Methods
Heat Transfer Methods
The ways heat moves between objects. Conduction, convection, and radiation.
Thermal Energy
Thermal Energy
The total kinetic energy of all the particles in a substance.
Specific Heat Capacity
Specific Heat Capacity
The amount of heat needed to raise the temperature of 1 kg of a substance by 1 degree Celsius.
Nuclear Radiation
Nuclear Radiation
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Alpha Decay
Alpha Decay
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Study Notes
Thermal Energy
- Heat is a form of energy transferred between objects at different temperatures.
- Temperature measures the average kinetic energy of the particles.
- Heat capacity is the amount of heat needed to raise the temperature of a substance by one degree Celsius.
- Specific heat capacity is the amount of heat required to raise the temperature of one kilogram of a substance by one degree Celsius.
- Thermal energy exchange occurs when heat flows from a hotter object to a colder object until they reach thermal equilibrium.
Heat Transfer
- Three main methods of heat transfer: conduction, convection, radiation.
- Conduction: Heat transfer through direct contact.
- Convection: Heat transfer through the movement of fluids (liquids and gases).
- Radiation: Heat transfer through electromagnetic waves.
Latent Heat
- Latent heat of fusion is the heat absorbed or released during a phase change between solid and liquid.
- Latent heat of vaporization is the heat absorbed or released during a phase change between liquid and gas.
Nuclear Radiation
- Nuclear radiation involves the emission of particles or energy from unstable atomic nuclei.
- Ionizing radiation has enough energy to remove electrons from atoms, potentially causing damage to living tissue.
- Alpha decay: Emission of an alpha particle (helium nucleus).
- Beta decay: Emission of a beta particle (electron or positron).
- Gamma decay: Emission of gamma rays (high-energy photons).
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