Physics Unit 5

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Physics - Thermodynamics

mmoranwkf Created by 9 mon ago

Cards in this deck(19)

What is the term for the sum of the kinetic and potential energy of all molecules in a substance?

What measurement is directly related to the average kinetic energy of the molecules in a substance?

What is the term for the transfer of thermal energy due to a difference in temperature?

What must occur for an object to be heated up?

What must occur for an object to cool off?

What is the form of heat transfer where thermal energy is transmitted through the collision of particles?

What is the form of heat transfer where thermal energy moves upward due to the buoyancy of the fluid that contains it?

What is the form of heat transfer where thermal energy is transmitted through electromagnetic waves and can travel through a vacuum?

What occurs when heat flows between objects until they reach the same temperature?

What is the lowest possible temperature, where all particles of a substance would be at rest, measured as zero on the Kelvin scale?

A temperature measured in Kelvin can never be what?

What is the amount of thermal energy needed to raise the temperature of 1 kg of a substance by 1 degree Celsius?

What is the amount of thermal energy required to melt 1 kg of a substance that is already at the melting point?

What is the amount of thermal energy required to vaporize 1 kg of a substance that is already at the boiling point?

What law shows that you can change the thermal energy of a substance by adding heat and doing work, as a consequence of conservation of energy?

What is the measure of disorder in a system?

Which law shows that natural processes tend to increase the entropy of the universe, and work must be done to decrease the entropy of a system?

What is something that converts thermal energy into mechanical energy?

What occurs when a material heats up, causing the spaces between particles to increase and the material to expand?

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