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Physics > 5 Solids, Liquids and Gases > Flashcards

5 Solids, Liquids and Gases Flashcards

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1
Q

Equation for density

A

Mass/volume

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2
Q

How to find the volume of random objects

A

Displacement Method

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3
Q

Equation for pressure

A

Force/area

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4
Q

How does the pressure at a single point in a gas or liquid act?

A

In all directions

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5
Q

Equation for pressure difference

A

density x gravitational field strength x height

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6
Q

Solids

A

Regular arrangement
Strong bonds between particles
Particles vibrate around in fixed positions
Particles are close together

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7
Q

Liquids

A

Random arrangement
Slightly weaker bonds between particles compared to solid
Particles can move + slide over each other
Little space between particles

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8
Q

Gases

A

Random arrangement
Negligible bonds between particles
Particles can move freely
Larger space between particles

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9
Q

Specific Heat Capacity

A

Energy required to increase the temperature of an object by 1 degrees celsius per kg of mass (J/oc)

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10
Q

Energy equation

A

mc delta t

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11
Q

What happens when a gas is heated?

A

Speed of gas particles increases
Collide with sides of container
Increase in pressure

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12
Q

What happens when a gas is cooled?

A

Speed of gas particles decreases
When the gas particles have stopped moving, they can’t cool any further = absolute zero

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13
Q

What relationship do Kinetic Energy and Temperature have

A

Directly proportional

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14
Q

Pressure Law

A

P1/T1 = P2/T2

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15
Q

When is the pressure law true?

A

The mass + volume of the gas are fixed
The temperature is in Kelvin

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16
Q

Relationship between pressure and volume

A

Volume is inversely proportional to pressure

17
Q

Boyles Law

A

P1V1 = P2V2

18
Q

When is Boyles Law true?

A

Fixed mass of gas
At a constant temperature

19
Q

Brownian Motion

A

Random movement of large particles as a result of collisions with surrounding small gaseous particles

20
Q

Example of Brownian Motion

A

Smoke particles (large particles)
Air particles (small particles)

21
Q

What does the Brownian motion show about air particles?

A

Small
Moving quickly since they can change the path of a larger particle
Random movement

Physics (8 decks)

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