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Physics Particles Key Words > Definitions > Flashcards

Definitions Flashcards

1
Q

Liquid

A

A state of matter where particles have some connection but can flow freely

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2
Q

Internal energy

A

The energy of the particles of a substance due to their motion and positions

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3
Q

Freezing point

A

The temperature at which a substance freezes

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4
Q

Latent heat

A

The energy transferred to or from a substance when it changes state

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5
Q

Evaporation

A

Change of state from liquid to gas happens at the surface of liquids only

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6
Q

Gas

A

A state of matter where particles have high energy, move rapidly and are far apart

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7
Q

Condensation point

A

The temperature at which a substance changes from a gas to a liquid

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8
Q

Boiling

A

Change of state from liquid to gas happens throughout the liquid

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9
Q

Gas pressure

A

Collision of gas particles with the walls of a container

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10
Q

Brownian motion

A

Random movement of particles

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11
Q

Boiling point

A

The temperature at which a substance changes from liquid to gas

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12
Q

Melting point

A

The temperature at which a substance changes from solid to liquid

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13
Q

Solid

A

State pf matter where particles are ordered and vibrate only

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14
Q

Potential energy

A

Energy associated with the position of particles

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15
Q

Kinetic energy

A

Energy associated with movement

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16
Q

Specific heat capacity

A

Energy required/released when 1 kg of a substance is heated/cooled by 1 degree celsius

17
Q

Specific latent heat of fusion

A

Energy needed to melt 1kg of a substance with no change in temperature

18
Q

Specific latent heat of vaporisation

A

Energy needed to boil away 1kg of substance with no change in temperature

19
Q

Density

A

A measure of mass divided by volume

20
Q

Condensation point

A

The temperature at which a substance condenses

21
Q

Freezing

A

Change of state from liquid to solid

22
Q

Melting

A

Change of state from solid to liquid

Physics Particles Key Words (1 decks)

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