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GCSE Physics > P3 particle model of matter > Flashcards

P3 particle model of matter Flashcards

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1
Q

Sates of matter

A

Solid
Liquid
Gas

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2
Q

Solid

A

Fixed shape and size
Particles vibrate
Held together by bonds(strong forces of attraction)

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3
Q

Liquid

A 
Fixed size not shape
Takes shape of container
Bonds are less strong than solid
Particles close together and attract each other
Move around no regular pattern
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4
Q

Gas

A

No fixed shape or size
Particles move quickly and randomly to fill space available
Virtually free of any attraction

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5
Q

Density

A

Compares the mass of materials with the same volume

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6
Q

Required practical- to investigate the densities of regular and irregular solid objects and liquids

A

D of liquid- find volume in measuring cylinder and weigh it
D of regular object- find volume l x w x h and weigh it
D of irregular object- squish into regular shape and find v and weigh it

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7
Q

Conservation of mass

A

When substances change state and mass stays the same

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8
Q

Melting

A

Solid to liquid

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9
Q

Freezing

A

Liquid to solid

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10
Q

Boiling

A

Liquid to gas at boiling point

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11
Q

Evaporating

A

Liquid to gas when temp of liquid is lower than boiling point

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12
Q

Condensing

A

Gas to liquid

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13
Q

Sublimating

A

Solid to gas without going through liquid state

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14
Q

Internal energy

A

The total kinetic and potential energy all of the particles have

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15
Q

Temperature rise depends on

A

Mass of liquid heated
Liquid being heated
Energy input to the system

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16
Q

Specific heat capacity

A

The energy needed to raise 1Kg of a substance by 1 degree Celsius

17
Q

Latent heat

A

The energy needed for a substance to change a state without a change in temperature

18
Q

Specific latent heat of fusion

A

Change of state from solid to liquid

19
Q

Specific latent heat of vaporisation

A

Liquid to gas (vapour)

Much greater

20
Q

Pressure

A

The total force exerted by all the molecules inside the container that strike a unit area of the wall

21
Q

Increasing pressure

A

In a sealed container the mass and volume stay constant and you increase the temp the pressure will increase
Depends on volume mass and temp

22
Q

Work done on gas

A

When gas in compressed, force is required.

Energy is transferred so work is done

GCSE Physics (9 decks)

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