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Revision > Science ~ Particles > Flashcards

Science ~ Particles Flashcards

1
Q

How many materials are made of particles?

A

every material in the world

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2
Q

What determines whether they are solid, liquid or gas?

A

The arrangement of the particles

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3
Q

Every material has different properties. What does this determine?

A

The behaviour of the material.

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4
Q

What are some of the different properties?

A

Shiny
Hard
Conducts energy

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5
Q

What type of substance only has one type of particle?

A

A pure substance

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6
Q

What type of substance has more than one type of particle?

A

A mixture

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7
Q

What material is stronger than pure metals because of its different sized atoms?

A

Alloys

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8
Q

What two factors does density rely on?

A

Mass and volume

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9
Q

What is mass measured in?

A

Grams or Kilograms

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10
Q

What is volume measured in?

A

Cm3

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11
Q

How do you calculate the volume of an object?

A

Height X Width X Depth

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12
Q

How do you calculate density?

A

Mass
————
Volume

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13
Q

Which substances flow?

A

Gas and liquid

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14
Q

Which substances can be compressed?

A

Gas

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15
Q

Which substances are in a fixed shape?

A

Solid

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16
Q

Which state of matter has the most energy?

A

Gas

17
Q

Which state of matter has the least energy?

A

Solid

18
Q

Which two states of matter have a high density?

A

Liquid and Solid

19
Q

What is the transition between solid to liquid called? 

A

Melting

20
Q

What is the transition from liquid to solid called? 

A

Freezing

21
Q

What is the transition from liquid to gas called?

A

Evaporation 

22
Q

What is the transition from gas to liquid called?

A

Condensation

23
Q

What is the transition from solid to gas called?

A

Sublimation

24
Q

What is the transition from gas to solid called?

A

Deposition

25
Q

If the temperature is above the boiling point, what state of matter is it? 

A

Gas

26
Q

If the temperature is between the melting and boiling points, what state of matter is it? 

A

Liquid

27
Q

If the temperature is below the melting point, what state of matter is it? 

A

Solid

28
Q

What is diffusion? 

A

Diffusion is the movement of particles from an area of high concentration to an area of low concentration down a concentration gradient, it requires no energy 

29
Q

What are four of the factors that affect diffusion? 

A
  1. This state of matter as only gases and liquids can diffuse
  2. the temperature: if the particle has more heat has more energy that thought it will move quicker.
  3. The size of the particle the bigger The particle the slower it diffuses
  4. concentration gradient is the bigger, the difference between high and low areas. The faster diffusion is 
30
Q

What can you do to increase the gas pressure in something?

A
  1. Heat up the particles so they move faster
  2. Add more air
31
Q

What can you do to decrease the gas pressure in something?

A
  1. Cool the particles down so they move slower
  2. Let some air out

Revision (9 decks)

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