Thermal Energy Flashcards

1
Q

Thermal energy

A

Energy a substance or system as related to its temperature

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2
Q

Specific energy

A

Energy per unit mass also called energy density more precisely means energy per unit volume

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3
Q

Heat

A

The quality of being hot ; high temperature

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4
Q

Conduction

A

Heat or electricity is directly transmitted through a substance when there is a difference of temp. Or of electrical potential between adjoining regions ,without movement of the material

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5
Q

Convection

A

Within a fluid by the tendency of hotter and therefore less dense material to rise ,and colder,transfers to heat

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6
Q

Radiation

A

Electromagnetic waves or as moving subatomic particles especially high energy particles that cause ionization

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7
Q

Thermal insulator

A

1.transferring of heat

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8
Q

Solar collector

A

Heating buildings or water or the production of electricity

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9
Q

Thermodynamics

A

The branch of physical science that deals with the relations between heat and other forms of energy such as mechanical electrical or chemical energy

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10
Q

1st law of thermodynamics

A

Energy that can be transformed from one another but can’t be created or destroyed

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11
Q

2nd law of thermaldynamics

A

The entropy of the world only increases and never decreases

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12
Q

Temperature

A

Measure of the average kinetic energy of all the particles that make up an object

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