Particles And Pressure (9) Flashcards

1
Q

The process of turning from a solid to a liquid is called ____________

A

Melting

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2
Q

The process of turning from a liquid to a gas is called ______________

A

Evaporating

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3
Q

The process of turning from a liquid to a solid is called ____________

A

Freezing

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4
Q

The process of turning form a gas to a liquid is called ______________

A

Condensing

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4
Q

Is energy given off or taken in as a liquid turns to a solid

A

Given off

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5
Q

Is energy given off or taken in as a solid turns to a liquid

A

Taken in

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6
Q

Is energy given off or taken in as a gas turns to a liquid

A

Given off

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7
Q

Is energy given off or taken in as a liquid turns to a gas

A

Taken in

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8
Q

Is energy given off or taken in as a solid turns to a gas

A

Taken in

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9
Q

Equation for pressure

A

Pressure = force ÷ area

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10
Q

When volume is reduced, pressure ____________

A

Increases

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11
Q

Pressure is measured in _____ or _____

A

Pressure is measured in [N/M2] or in pascals [Pa]

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12
Q

What is Brownian Motion

A

The evidence of particle motion in gases

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13
Q

If smoke particles are in a small container then what happens

A

Loads of little air particles hit them and knock them about

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14
Q

What is diffusion

A

The random movement of particles from an area of high concentration to an area of low concentration

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15
Q

Air particles move _____________

A

Randomly

16
Q

What does high concentration mean when talking about diffusion

A

High concentration is where loads of particles a packed together.

17
Q

Solid particles are tightly packed and _____ vibrate

A

Solid particles DO vibrate

18
Q

True or false

Gas particles can be compressed

A

True. Gas particles can be compressed because their particles have lots of space between them.

19
Q

Solids and ______ are incompressible

A

Solids and LIQUIDS are incompressible