Unit A Mix and Flow of Matter Flashcards
(128 cards)
1
Q
Fluid
A
anything that has no fixed shape and can flow
ex: liquids and gases
2
Q
Label any ______
A
containers you put chemicals in
3
Q
report all ____
A
incidents or spills to a teacher
4
Q
When using chemicals with _______
A
WHIMIS symbols make sure you understand what the mean.
5
Q
Properties of Fluids
A
- Viscosity
2.buoyancy
3.density - compressability
6
Q
________ are relitivly easy to move
A
fluids
7
Q
some solids start out as a ______
A
fluids
8
Q
Identify all 10 WHIMIS symbols of 2015
A
- Gas Cylinder 2. Flame 3. Flame over circle
4.Exclamation mark 5. health Hazard 6. Biohazoudous
- Corrosion 8.Exploding Bomb 9. Skull and crossbones
- Enviornment
9
Q
Scientific medod steps
A
- make an observation
2.Form a question with research
3.form a hypothesis - Conduct an experiment
- Analize data
- draw an conclusion
10
Q
what do these dangour level of whimiss classifications mean
1.Triangle
2. Hexagon
3. Diamond
4.Circle
A
- Caution
2.Warning - danger
4.Biohazourdous
11
Q
WHMIS
A
workplace hazourdous material information system
12
Q
Read all written ______
A
instructions before doing an activity
13
Q
Listen carefully to all ____
A
instructions and follow them
14
Q
wash your _______
A
hands before an experiment, after an experiment, and after handling chemicals
15
Q
A risk of the gas cylinder
A
gas under pressure
16
Q
A risk of the Flame
A
flammable products
17
Q
A risk of the flame over circle
A
oxidizer
18
Q
A risk of the Exclamation Mark
A
poisonous material
19
Q
A risk of health Hazard
A
materials with dangour to health
20
Q
A risk of the biohazordous
A
Infectous material
21
Q
A risk of the corrosion
A
Material which reacts with metal/ skin
22
Q
A risk of the exploding bomb
A
Explosive device
23
Q
A risk of the skull and crossbone
A
acute toxicity
24
Q
A risk of the enviornment
A
aquatic toxity
25
Wear safty equitment such as ________
googles, glooves, aprons, etc
26
Think before you _______
touch substances may be hot and dangourous
27
Smell a substance by ______
wafting smell with hand to nose.
28
Do not _______ anything
taste
29
Tie back _______ and roll up _______
hair
sleeves
30
When puring a substance _______
into a container put the contaner on a rack not in your hands
31
Clean up any _______
spilled substances imedditly and safely
32
Never look into a test tube from the _______
top, look from the side
33
Never use ______
cracked or broken glassware follow teachers instructions to deal with broken glass
34
How do you change the concentration of a substance?
add more solute to incerease add more solvent to decrease
35
Unsaturated Solution
solute can continue to be added and dissolved
36
saturated Solution
a salution in which no mire solute can be dissolved into solvent
37
solubility
maximum amount of solute that can be dissolved at given temp
38
True or false
Every Solution has the same saturation point for each tempature
false
39
Insoluble
solute will not dissolve
40
How do you calculate solubility?
the mass of the solute will be divided by the mass of the solvent then multiplyed by 100 you right it as your awnser g/the amount of solvent ml
ex: 1600g/100ml 1600 divided by 100 = 16 multiplyed by 100 = 160
then you write it as 160g/100ml
41
Solubility Curves
a graph which shows how much solute can be dissolved into a solvent at a specific tempature
42
solubility increases with ____ (most of the time)
tempature
43
Solubility is _____ for each substance
unique
44
An example universal solvent is
water
45
Solubilty depends on
type of solute, type of solvent, and tempature
46
Particle model of matter
particles are to small to be scene by the naked eye
particles have attraction to one another
particles are always moving and vibrating
particles have spaces in between
47
why do particles dissolve?
particles in solute are attracted to particles in solvent
48
How does tempature increase the rate of dissolving?
increase of temp. makes particles move faster causing more collisionm
49
How does the size of particles increase the rate of dissolving?
smaller pieces of the solute will dissolve faster because more surface area
50
How does stirring (agitation) increase the rate of dissolving?
it moves the particles around and increases collision
51
Matter
anything in our universe that takes up space and has mass
52
the three states of matter are ____
solid, liquid, gas
53
matter can be classified as _____
pure substances and mixtures
54
Pure substances are made up by _____
1 kind of matter
55
Pure substances have unigue set of -______
charecteristics
56
True or false
You can seperate pure substances into different substances
false
57
mixtures are made up by _____
2 or more kinds of matter/substance
58
each substance in a mixture _______ it's own properties
keeps
59
True or false
Sometimes you are able to identify substances in a mixture
true
60
can mechanical mixtures be difficult to determine it pure substance or mixture?
yes
61
2 types of mechanical mixtures
homogenous'
heterogenous
62
homogenous mixture
it looks like one substance but it is not (aka solution) its all mixed together ex: blood
63
heterogenous mixture
you can see the different parts that make up the mixture
ex: salad
64
Suspensions
cloudy mixtures where tiny droplets of one substance are held within another substance. ex: fruiot juice
65
colloid
cloudy mixture exept droplets are so small they do not seperate
ex: milk
66
paper chromatography
something used to test if something is a pure substance or a mixture
67
solutions
one substance dissolved in another one (aka homogenous mixture)
68
solute
the substance that dissolves
69
solvent
the substance that does the dissolving
70
Concentration
The concentration of a solution can teel you how much solute dissolved into how much solvent
71
To compare concentration you need _____
to have the volume of the solvent the same for both solutions then look at the amount of solute
72
concentration is stated as _____
of grams of solute dissolved in how much solvent
ex: 50g/100ml
73
How do you calculate concentration?
divide amount of solute by the amount of solvent
50g/100ml = 0.5g/100ml
74
flow
how we describe fluid movement
75
True or false
Individual particles can move past each other.
true
76
The movement of a flow is ________
continuous and unbroken
77
Fluids form a _____ not a ______
puddle
pile
78
Friction
a force that results when 2 objects rub or touch causing resistance
79
Flow Rate
Volume of a fluid flowing past a certain point in a certain amount of time
80
Viscosity
the resistance of a fluid to flow
A high viscous substance is slow and a low viscous substance is fast
81
Which one of these fluids would flow the fastest? which would be second and which would be last?
Dish soap
water
Corn syrup
1.Water
2. Dish soap
3.corn sryup
82
internal friction
when individual particles have friction
83
What causes a resistance to flow?
internal friction
84
Flow rate _____ as viscosity _______
decreases
increases
85
How does tempature affect viscosity?
As temp increases, viscosity decrease in liquids but for gases its the opposite
86
How does the type of particle affect viscosity?
different particles are more prone to resistance than other particles
87
Density
a property that describes how close together particles in matter are close.
88
Formula for Density
d = m/v
d = #g/ml
89
If something is more dense it will _____ in something less dense
sink
90
If something is less dense it will _____ in something more dense
float
91
true or false
different substances have different size shape particles
true
92
size of particles affect how many can fit into a given
volume
93
the more space between particles the lower the
density
94
three states of matter in order of most dense to least.
1.Solid
2.Liquid
3.gas
*water is an exeption*
95
As tempature increases density
decreases
96
______ is less dense than air
heluim
97
Buoyant Force
Upward Force exerted on a object by a fluid, when the object is placed in the fluid
98
Density and Bouyabncy are realted. Density affects how much an object might float, sink, or be neutrally boyant
float, sink, or be neutrally boyant
99
______ is less dense than water
ice
100
Buoyancy
The tendancy of a certain object to float or sink in a fluid., that is denser than the object
101
What causes heavy ships to float
their shape
102
floating in water and air have the same
scientific principle
103
fuilds can exert a
boyant force
104
Positivly Buoyant
lift greater than weight causing object to climb
105
Neutrally Buoyant
lift same as weight causing object to maintain altidude
106
Negativly Buoyant
lift is less than weight causing object to sink/ lower
107
Archimedes Principle
an object placed in a fluid will float if it is less dense than the fluid and it will sink if it is more dense than the fluid.
108
the boyant force is equal to the weight of the
displaced water
109
Pressure
force applied over a specific area at a right angle to a surface
110
As area ____ pressure _____. This can also be reversed
increase
decreases
111
Formula for pressure
P = F/A
P= #pa(pascals)
112
Pascal's Law
pressure applied to a fluid in a closed system will be transmitted throught the fluid at the same strenght. Pressure will puch on all sides egually.
113
Detergant
a substance used to clean laundry/clothes
114
How to Surfants help clean clothes in Laundry Deytergant.
Surfants attach themselve to dirt and oil particles which seperates them from fabrics and other materials
115
Why do manufactures no longer use phosphates in detergant
polluted water
116
some material in detergant
surfacts
optical whiteness
corrosion inhibitor
bleach
fragrance
117
What happens to blood when diving?
Pressure decreases rapidly causing nitrogen gas to bubble out, It can cause lots of pain and can kill if left untreated.
118
how a diaphram pump works
when the piston is pulled up the intake valve opens and output closes. Fluid is sucked into it and fills cylinder the piston is pushed down on and the intake valve closes outake opens and the fluid goes out of the outake valve.
119
archimedes screw
a pump invented by archimedes to remove water from the hold of a ship.
120
Are bicicle pumps, archimeds screws, and diaghpram pumps mainly based on the same idea.
yes
121
Why does it become harder to fill more air into a ball or tire as you keep going
the air has to keep compressing more and more and more to make room for more
122
Pipline pigs
transport oil and natural gases and creates clean fuel supply.
123
Valve
device which controls or regulates the amount of flow
124
stuff which use valves
1.toilet tank
2.sink tap
3.pump
4. dispenser
125
ballest tanks
contols if a subarine floats or sinks
126
how does a submarine stay on the surface
the ballest tanks are filled with air
127
how does a submarine dive
the air is leaving the ballest tank and water is entering
128
how does a subarine resurface
the water is leaving the ballest tank and air is entering
