Thermal Energy and Kinetic Energy Flashcard

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What is kinetic energy?

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Kinetic energy is the energy that an object possesses due to its motion. It depends on the mass of the object and the speed at which it is moving.

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How can the average kinetic energy of particles in a substance be increased?

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The average kinetic energy of particles can be increased by raising the temperature of the substance, which causes the particles to move faster.

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What is thermal energy?

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Thermal energy is the total energy of all the particles in a substance, which is related to its temperature.

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What is conduction?

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Conduction is the transfer of thermal energy through direct contact between materials, where heat moves from the hotter object to the cooler one.

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What is convection?

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Convection is the transfer of thermal energy through the movement of fluids (liquids or gases) caused by differences in temperature and density.

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What is radiation?

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Radiation is the transfer of energy through electromagnetic waves, such as heat from the sun reaching the Earth.

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What happens during thermal equilibrium?

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During thermal equilibrium, two objects at different temperatures come into contact, and thermal energy is transferred until both objects reach the same temperature.

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What is the relationship between temperature and kinetic energy?

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As the temperature of a substance increases, the average kinetic energy of its particles also increases.

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Why might the final temperature of mixed liquids be lower than expected?

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The final temperature may be lower than expected due to thermal energy loss to the environment through radiation and conduction.

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What is the formula for kinetic energy?

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The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

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