Thermal Energy Flashcards

1
Q

Thermal energy

A

Sum of the kinetic and potential energy of the particles that make up an object

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2
Q

Thermal insulator

A

A material through which thermal energy moves slowly

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3
Q

Thermodynamics

A

Study of the relationship between thermal energy heat and work

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4
Q

Specific heat

A

Amount of heat needed to raise the temperature of 1kg of a material

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5
Q

Solar collector

A

Device used in an active solar heating system that transforms radiant energy from the sun into thermal energy

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6
Q

Radiation

A

Transfer of energy by electromagnetic waves

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7
Q

Heat

A

Energy that is transferred between objects due to a temperature difference between those objects

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8
Q

Conduction

A

Transfer of thermal energy by collisions between the particles that make up matter

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9
Q

Convection

A

Transfer of thermal energy in a fluid by the movement of warmer and cooler fluid from one place to another

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10
Q

Second law of thermodynamics

A

States that energy spontaneously spreads from regions of higher concentration to regions of lower concentration

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11
Q

First law of thermodynamics

A

States that if the mechanical energy of a system is constant the increase in the thermal energy of the system equals the sum of the thermal energy transferred into the system and the work done on the system

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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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