Mix and flow of matter

Question 1

What does WHMIS stand for?

Answer 1

Workplace Hazardous Materials Information System

Question 2

What is a fluid?

Answer 2

Anything that does not have a fixed shape and can flow, it can be a liquid or a gas.

Question 3

What is a slurry? What are three examples?

Answer 3

A slurry is a mixture of water or a liquid and a solid. Slushy, mud, cake batter, oil sands, diarea ext.

Question 4

What is a hydrometer?

Answer 4

A device used to measure the density of a liquid.

Question 5

When a mixture is saturated it means that…

Answer 5

No more solute can be dissolved

Question 6

What is a heterogenious mixture?

What are some examples?

Answer 6

It is a mechanical mixture in which you can see the seperate pieces or particles this also means that you will not get the exact same thing in every bite or scoop.
(examples: Soil, fruit salad, blood, concrete)

Question 7

What are elements?

What are examples?

Answer 7

They are a type of pure substance that are made of strictly one of the pure particles like those on the periodic table. (Examples: Gold, iron, oxygen, carbon dioxide)

Question 8

What is a compound?

What are examples?

Answer 8

They are still one pure substance but are made of more than one element on the periodic table.
(Examples:Water, sugar, salt, air)

Question 9

What is a the difference between a saturated and non-saturated mixture?

Answer 9

Once a mixture is saturated and no more solute can be added in a non-saturated mixture you could change the temperature and more could be added and dissolved but if a mixture is a satured mixture then even if the temperature is changed no more solute could be added.

Question 10

A concentraited solution in one in which…

Answer 10

There is more solute that solvent and it is stronger or more flavourful and in some cases has a thicker consistancy. Not very much more solute can be added. nw

Question 11

What is viscosity?

Answer 11

It is the rate at which a fluid flows or the measure of the resistance of a fluid flow.

Question 12

What are the four proporties of a liquid?

Answer 12

Viscosity, boyancy, compressability and density

Question 13

What is density?

Answer 13

The amount of matter in a given volume.

Question 14

A mechanical mixture is one in which…

Answer 14

You can visibly see the seperate particles or ingredients

Examples:Salad, chocolate chip cookies, fruit sald, cereal

Question 15

What is the universal sovlent?

Answer 15

Water

Question 16

What is boyancy?

Answer 16

They upward force on an object reducing the force of gravity. The object or fluid that is boyant has to be less dense than what it is sitting in/on.

Question 17

What ingrediant in toothpaste is used to keep the mixture held together?

Answer 17

Binders such as wood pulp or red sea weed

Question 18

What is a solute and what is a solvent?

Answer 18

The solute is whst you add to the solvent and it is what is being dissolved.(ex. Juice powder)
The solvent in what the solute is being added to or what is dissolving it.(ex. Water)

Question 19

A diluted solution is one in which…

Answer 19

Has more solvent that solute so it would be weaker or not as flavourful. Lots of more solute can be added and it is liquidy or thin.

Question 20

What is concentraition?

Answer 20

The measure of how much of a given substance is mixed with another substance.(Ex.75g of sugare per 100mL of water)

Question 21

What is a colloid mixture?

Answer 21

A mixture in which the particles never settle down to the bottom.(Ex. milk) (Not orange juice because the pulp sinks and settles)

Question 22

A homogonous mixture is one in which…

Answer 22

It is a solution in which particles of different substances are intermingled an all of the particles in the mixture completely disapear or dissolve. It apears to be one substance and you can not see the seperate pieces.
(Ex.Vinegar, water, air)

Question 23

What is the difference bettween a mixture and a solution?

Answer 23

A mixture is made of two or more substances
(Ex. Salad)

A solution is a type of mixture that is seperated evenly and you get the same thing in every bite/scoop
(Ex.Milk, water, juice)

Question 24

What is a pneumatic system?(gas)

Answer 24

Systems that use gas or air under pressure to move loads.(Ex. Jackhammer, Air brakes and dentist drill)

Question 25

What is a Hydrolic system?(liquid)

Answer 25

System that used liquid specificly water under pressure to move loads.(Ex.Hydrolic lift, pressure washer,

Question 26

What is solubility?

Answer 26

They ability a substance has to dissolve. How much solute can be dissolved into a specific amounth of solvent.

Question 27

What is a saturation point?

Answer 27

The point where no more solute can be dissolved into the the solvent at the given temperature.

Question 28

What is an Aqueous solution?

Answer 28

A solution where water is the solvent.

Question 29

What is thermal pollution?

Answer 29

When people take cool water out of a lake or pond and put it back in warm water.

Question 30

What is neutral bouyancy?

Answer 30

When the object or substance neither sinks no flaots it is suspended right in the middle.

Question 31

What is the plimsoll line?

Answer 31

A line painted on the side of a ship or boat to show how heavy a load can be placed in it in different water conditions. (Where the water level is on the boat or ship when it is in the water, this line may varry based on the density of the water it is in. Lake water is less dence than salt water so the boat would sind down further.)

Question 32

What is compressability?

Answer 32

When a force pushes or acted on a object.

Question 33

What does it mean if something is incompressable?

Answer 33

The substance does not have the ability to be compressed.(can not be compressed)

Question 34

What is matter?

Answer 34

Anything that has mass and takes up space.

Question 35

What is a pure substance?

Answer 35

Substances that are made up of one type of matter, they can't be seperated into different substances. A pure substance is either a compound or an element.

Question 36

What are suspensions?

Answer 36

Mixtures in which dropelets of one substance are held in another substance. Undisturbed its parts will usually seperate.(Ex.water dropelets in oil.)

Question 37

What is pressure?

Answer 37

The measure of the amount of force applied to a certain area.

Question 38

All matter can be seperated into two groups, these are...

Answer 38

Mixtures and pure substances.

Question 39

What is Pascal's law?

Answer 39

Input pressure=Output pressure (If you push an amount of water through a tube the same amount will come out the other end.)(If you change the pressure on one end it will change the other end as well)

Question 40

Explain how agitation or a disturbance can affect the solubility/rate of dissolving?

Answer 40

The particles bump into eachother and combine faster.

Question 41

Can something dissolve without stirring or a disturbance?

Answer 41

It depends on what the solute and solvent are, most won't or at least not very well however some conditions and factors in them can affect the outcomes.

Question 42

Can you combine two liquids and have a volume less than the sum of the volumes when you started?

Answer 42

yes, it depends on what the liquids you are combining and it won't affect it much but some of the particles can escape when combining.

Question 43

The particle model of matter discribes the structre of matter by using 4 main points, they are...

Answer 43

- All matter is made up of tiny particles - Tiny particles in matter are always moving and vibrating - The particles in matter may bond together - Particles constantly have space between them

Question 44

What effect does temperature have on the viscocity of a fluid?

Answer 44

Warmer fluids will must often flow must faster and have a lower viscocity than a fluid that it cooler. High viscocity=slow flowing Low viscocity=fast moving

Question 45

What is one pascal equal to?

Answer 45

One pascal is equal to one neuton.

Question 46

How does depth in the ocean affect pressure?

Answer 46

The deeper you are the greater the hight the force of pressure is from the weight of the water above.

Question 47

What are surfactants?

Answer 47

Particles that attach themselves to to dirt and oil particles. They are most often used in detergents and cleaning products like soap.

Question 48

What is "The Bends" and how is it treated?

Answer 48

A diseased caused by pressure decreasing rapidly. It happens to divers when they assend to quickly.(too much nitrogen enters the blood steam.)(Body becomes saturated with nitrogen) It is treated by placing the diver in a chamber and increasing the pressure around them so that the nitrogen can be released.

Question 49

What is the function of a pump?

Answer 49

It moves fluid from one place to another. (Ex. pump water out of a well of a pump used to blow up a basket ball)