States Of Matter- By Archie Wilko

Front 1

What is the definition of a solid?

Back 1

A solid is when the particles are close together, the particle bonds are strong, and there are only tiny vibrations of the particles.

Front 2

What is an example of a solid?

Back 2

Metal, people, etc.

Front 3

What is the definition of a liquid?

Back 3

A liquid is when the particles are close together, but the bonds are weak, and they can move about a bit.

Front 4

What is an example of a liquid?

Back 4

Water, juice, etc.

Front 5

What is the definition of a gas?

Back 5

A gas is when the particles can move freely, and the bonds are very weak (they are still just there though).

Front 6

What is an example of a gas?

Back 6

Oxygen, etc

Front 7

What state is this?

Back 7

Liquid

Front 8

What state is this?

Back 8

Liquid

Front 9

What state is this?

Back 9

Gas

Front 10

What state is this?

Back 10

Solid

Front 11

What do particles do when they are heated?

Back 11

They move around more.

Front 12

What do particles do when they are cooled?

Back 12

They slow down and stop moving around as much

Front 13

Think about how to draw states of matter.

Back 13

Okay, you can do it now

Front 14

What is the equation/formula for figuring out density?

Back 14

The equation/formula is: mass divided by volume, so for us it's: grams divided by cm3

Front 15

How is the density written?

Back 15

(number)g/cm3

Front 16

What is the density if it is:

4g, 5cm3

Back 16

0.8g/cm3

Front 17

Density if:

9g, 7cm3

(round it to nearest 100th)

Back 17

1.29g/cm3

Front 18

Density if:

1cm3, 3g

Back 18

3g/cm3

Front 19

Density if:

49123cm3, 20134g

(round to nearest 100th)

Back 19

0.41g/cm3

Front 20

What is it called when something changes states from a liquid to a solid?

Back 20

Freezing

Front 21

What is Freezing?

Back 21

Freezing is the change of state from liquid to solid. It happens when heat is extracted.

Front 22

What is it called when something changes states from a solid to a liquid?

Back 22

Melting

Front 23

What is melting?

Back 23

Melting is the change of state from solid to liquid. It happens when heat is added

Front 24

What is it called when something changes states from a liquid to a gas?

Back 24

Evaporation

Front 25

What is evaporation?

Back 25

Evaporation is the change of state from liquid to gas. It happens when heat is added

Front 26

What is it called when something changes states from a gas to a liquid?

Back 26

Condensation

Front 27

What is condensation?

Back 27

Condensation is the change of state from liquid to solid. It happens when heat is extracted.

Front 28

What is it called when something changes states from a gas to a solid?

Back 28

Deposition

Front 29

What is deposition

Back 29

Deposition is the change of state from gas to solid. It happens when heat is extracted. It only happens in some substances like carbon dioxide (co2), and iodine. And it only happens if it is the right temperature and pressure is right.

Front 30

What is it called when something changes states from a solid to a gas?

Back 30

Sublimation

Front 31

What is sublimation?

Back 31

Sublimation is the change of state from solid to gas. It happens when heat is added. It only happens in some substances like carbon dioxide (co2), and iodine. And it only happens if it is the right temperature and pressure is right.

Front 32

What is expansion?

Back 32

Expansion is when an object becomes bigger, this happens when heat is added. They become bigger (the object, not the particles) because when the heat is added the particles move around more, meaning they are more spread out.

Front 33

What is contraction?

Back 33

Contraction is when an object becomes smaller, this happens when heat is extracted. They become smaller (the object, not the particles) because when the heat is extracted the particles move around less, meaning they are less spread out

Front 34

Give an example of when you need to take into consideration expansion and contraction

Back 34

Concrete slab, railway

Front 35

What is air pressure?

Back 35

Air pressure is when the particles of air are pushing on something. For example, a tire uses air pressure to stay inflated.

Front 36

What is diffusion?

Back 36

Diffusion is when the particles spread throughout a container (it can happen for gasses, liquids, and solids). As an example: if you open a bottle of perfume, it will spread throughout the room evenly (eventually), or if you put food dye in water, it will eventually be evenly coloured (even without stirring)

Front 37

Name the three types of heat transfer

Back 37

Conduction, convection, and radiation

Front 38

What is conduction?

Back 38

Conduction is when heat is transferred through a solid. It is done by the heat going into one particle, which crashes into another particle and transfers the heat, and this process goes on.

Front 39

What is convection?

Back 39

Convection is when heat is transferred through gasses or liquids. It happens when the particles are heated, so they rise, then more particles are heated, then they start to cool down so the descend, and then they are heated again and they rise and this process is repeated.

Front 40

What is radiation?

Back 40

Radiation is the heat transfer for anything (except for things which can block it out, like lead, or a big slab of concrete), it is used to transfer heat through space (how the sun's heat reaches us). It is also emitted out of everything (though not in big quantities), and the hotter something is the more radiation it emits/radiates.

Front 41

Is radiation hot?

Back 41

No, it's not, it isn't until it is absorbed that it makes things feel hot, because while it isn't hot it makes particles move faster, making things hotter.

Front 42

What does being a good conductor mean?

Back 42

Being a good conductor means that the substance is good at transferring heat quickly.

Front 43

What is an example of a good conductor?

Back 43

Solids are generally better but in particular metals (because they are more dense meaning it takes less time for the heat to be transferred from one particle to the next)

Front 44

What does being an insulator mean

Back 44

An insulator is a substance that isn't good at conducting heat, gasses and liquids are generally good insulators (because of being less dense)

Front 45

Why are saucepans and frypans made of metal, with plastic or rubber handles?

Back 45

Because metal is a good conductor of heat (so you can cook your food), and plastic and rubber are insulators (so you don't burn yourself)

Front 46

Give yourself a pat on the back

Back 46

Did you do it?