stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Grade 9 Science Exam Review Flashcards | StudBud
Explore
/
Grade 9 Science Exam Review
Grade 9 Science Exam Review
88 terms
·
StudBud Administration
·
95 plays
#Science #Grade 9 #Exam #Review #Grade 9 Science Exam Review
Flashcards
88 cards
F
Practice quiz
P
Host live
L
Questions
88
Answers
1
What are pure substances?
Elements and Compounds.
Mixtures, Elements and Atoms.
2
[T/F] Food chains and webs help show the transition of energy through an ecosystem.
False
True
3
The formula to measure voltage, current or resistance based on the other measures are a circuit
V = N x O
V = A x R
V = I x R
E = MC2
4
The correct formula for how to measure energy use in a house is:
A= L x W
E=MC2
V= I x V
E = PΔt
5
A physical change is:
A change that emits light or heat.
A change that physically harms itself.
Michael is running for SAC CoPrez 2019-2020.
When a substance changes itself but not chemically.
6
A chemical change is:
A substance changing.
A substance changing form.
The changing of the chemical identity of a substance.
Liquid > Solid
7
Another word for something basic is:
Alkali
Nobel
Easy
Smooth
8
Electron affinity is:
The tendency of a substance to hold onto electrons.
Electron loyalty rating.
How quickly substances kill electrons.
Electrons losing electrons.
9
An electron is a negatively charged subatomic particle.
True
False
10
An element is made of only 1 type of particle.
True
False
11
Columns of a periodic table are called:
Columns.
Groups.
12
Electrons are attracted to the ground because:
They are groundsexual (are attracted to ground).
The Earth has a negative charge.
The Earth has a neutral charge.
They like to dig.
13
An atom is made of subatomic particles.
False
True
14
Rows of the periodic table are called:
Rows.
Periods.
15
How many significant digits does this number have? 1203
2
1
3
4
16
Protons in the objects move during both charging by contact and by induction.
True
False
17
If a positively charged object touches a neutral object the electrons will:
Leave the neutral object and jump to the positive.
Stay.
Trick question: the protons will leave the neutral.
Kill all the Vulcans.
18
What is an example of chemical change:
A nail is bent.
A stick is broken.
Fire burns wood.
Water evaporates.
19
[T/F] A food
chain
is a bunch of food
webs
put together.
False
True
20
Choose an example of grounding.
Balloons popping.
Michael falling to the ground.
Charging by contact.
Lightning rods grounding lightning.
21
Do you know how to draw a circuit diagram properly?
Yes
Yes
Yes
No, I plan on failing.
22
Triboelectric series measures ____ and whether objects will ____ or ____ electrons if you ___.
Enterprise, Star Fleet, Picard, Q.
Electricity, gain, attract, destroy them.
Electricity, charge, overpower, hit them.
Electron affinity, gain, lose, rub them together.
23
An ammeter measures _____ in a circuit
Amps.
Volts.
24
In the formula: E = PΔt, P stands for ___ and Δt stands for ___?
Power in amps, time in days.
Power of resistance, triangles in years.
Power in watts, time in hours.
The power of the Borg and time to assimilate us all.
25
An atom with 2 electrons in is valence will ____ during an ionic bond.
Lose 2 electrons making it positive.
Gain 6 electrons making it negative.
26
When an atom loses electrons it becomes:
+ Positive +
- Negative -
27
What is a valence of an atom?
The last shell of the electron cloud.
A ring of electrons.
28
Amps measure:
Voltage.
How strong Lt. Worf is.
Resistance.
The current of a circuit in one spot.
29
Static charge is:
A circuit with a light.
The build-up of electrons on the outside of an object.
30
A proton is a positively charged subatomic particle.
False
True
31
[T/F] Producers are at the bottom of the food chain (or web).
False
True
32
Where is the most mass of an atom?
The nuecleus where the protons and neutrons are.
The electron cloud.
33
What is a mixture?
Pure substances combined.
Two elements bound together.
34
How many significant digits does this number have? 0.034
3
1
2
4
35
Metals like ____ are good conductors while things like ____ are good insulators. Look @ Picture
Copper, Rubber.
Glass, Paper.
Warp core, Warp engines.
Plastic, Fur.
36
A compound is:
A puresubstance made of 2 or more elements.
A prisoner detention centre.
Synonym for an element.
Doesn't matter I'm not going to the exam.
37
[T/F] Series circuits have one pathway for electrons to travel.
True
False
38
Atomic number is:
Amount of times an atom bomb can explode.
The number of protons and electrons in an atom.
The total amount of subatomic particles in an atom.
How much atomic mass an atom has.
39
The PH scale measures:
Proton torpedoes in the launch bay.
How much PHosphorus is in the air.
How acidic or basic a substance is.
40
In a series circuit, added resistance will decrease the current for all loads.
True
False
41
Particle Theory of Matter: Statement 1
Dark matter is bad.
You can continue to split something infinitely.
All matter is made up of tiny particles.
Kirk is better than Picard.
42
Particle Theory of Matter: Statement 3
Particles are asexual (not attracted to anything).
Particles are attracted to each other.
43
~~~~~~~~~~~~RESISTANCE~~~~~~~~~~~~~~
stilll
doo
44
An electric current is:
The blue lightning effect in Star Trek.
Electrons moving away from protons.
Protons moving to an electron.
Electrons flowing to a positively charged object (protons).
45
In a parallel circuit, added resistance might boost the current of one or more loads.
True
False
46
The atomic mass of an atom can be found where on the periodic table.
Above the element.
The numbers of the periods (rows).
Below the element's letters.
Noble Gases
47
On the PH scale, would something rated 6 or 7 be acidic or basic?
Trick Question: It would be rated neutral.
Basic
Acidic
48
[T/F] Decomposers do not break down dead organisms into energy and are not called detritivores.
True
False
49
A homogeneous mixture is (an example):
A mixture in which you can see all the different parts.
A mixture in which the different parts cannot be seen.
50
Particle Theory of Matter: Statement 4
Particles don't move.
Particles in solids can't move.
Particles are always moving.
Particles often go for long walks on beaches.
51
Charging by induction is where a charge is induced on an object
with
contact.
True.
False, without contact.
52
The equation for cellular respiration is:
Glucose + O2 ---> CO2 + H2O + Energy.
CO2 + H2O + Sunlight ---> Glucose + O2
V = I x R
53
Atoms bond by:
Engaging in conversation.
Sending snap chats to each other.
Freezing together.
Sharing electrons.
54
Trophic level is an organism's spot on a food chain dependant on what it eats and what eats it.
False
True
55
Why do predators eat prey and what are consumers called if they eat other animals.
To get energy & Carnivores (or herbivores).
To get CO2 & Herbivores.
56
Household energy is measured in KiloWatt hours or KWh. What is the conversion of Watts to KW?
1 KW = 937643 W
1 KW = 10 W
1 KW = 1000 W
1 KW = 1 W
57
What is the atomic number of Hydrogen?
2
3
1
4
58
On the PH scale, would something rated a 10 be acidic or basic?
Basic
Acidic
59
Which is
NOT
a clue of a chemical change?
Changing colour.
Being bent.
Gas is produced.
A precipitate is formed.
60
Particle Theory of Matter: Statement 2
Particles have feelings.
Koolaid is an example of an element.
All matter is the same.
Each element has a unique type of particle.
61
If a circuit is closed then:
Protons are killing each other.
Electrons are flowing through it.
Nothing happens.
The circuit is broken.
62
There are three types of elements (according to periodic table):
Hydrogenic acids, Carbohydratic metals and Pokemonic Bogars.
Solid, Gas and Oxygen.
Metals, Metalloids and Non-Metals.
Rohan, Gondor and Mordor.
63
[T/F] A parallel circuit has one pathway that electrons can travel through.
True
False
64
The standard atomic notation is:
The atomic number above letter and atomic mass below.
The atomic mass above letter and atomic number below.
65
What time and place is our exam?
11:40 in room 210.
I'm skipping.
Monday, June 25 at 11:40 in room 209.
Monday, June 25 at 8:15 am in room 209.
66
A heterogeneous mixture is:
A mixture in which you can see all the different parts.
A mixture in which you cannot see the different parts.
67
Which of these is not needed by producers to make oxygen and glucose?
Carbon Dioxide (CO2)
Energy from sunlight
Nitrogen
Water (H2O)
68
Particle Theory of Matter: Statement 5
Particles are always frozen.
Particles that have more heat (energy) move faster.
Global communism will fail.
Particles that are 'cold' cannot move.
69
If you multiplied 123 by 0.1, how many digits would the answer have?
3
2
4
1
70
An electroscope measures:
The magnitude of an electric charge.
How many neutrons in the Earth.
AU
Warp speed travel.
71
On the PH scale, would something rated a 3 be acidic or basic?
Acidic
Basic
72
Grounding is where something is connected to the ground to remove negative charges.
True
False
73
[T/F] Consumers eat producers and themselves and can be classified into 3 stages.
True
False
74
A volt meter measures _____ in a circuit.
Resistance
Amps
Movie Ratings
Volts
75
In the last question, 'E' in the formula stands for:
Electricity
star trEk
E
East
76
Producers take light energy from the sun and turn it into ____ & ____ with ____.
Meat & Blood, Respiration.
Glucose & Oxygen, Photosynthesis.
WARP POWER TO THE FORWARD SHIELDS!
CO2 & Water , Respiration.
77
Charging by contact is when objects give each other charges by touching.
True
False
78
An ionic bond is where an atom 'looses' its electron to another atom that 'gains' it.
False
True
79
The equation for photosynthesis is:
CO2 + H2O + Sunlight ---> Glucose + O2
Radiation + O2 ---> Nitrogen
H x (C+4) = O - (8xC)
E=MC4
80
In cellular respiration, producers obtain energy from glucose by:
Chemically combining with oxygen from the air.
Eating the sugars.
Decaying.
Dying.
81
Conductors let electrons flow ____ and insulators are the opposite.
Faster than the speed of light
Slowly
Easily
At Warp 11
82
Ecology is:
The study of ecosystems.
Study of Klingons.
Study of trees.
Study of rocks.
83
An atom with 7 electrons in the valence will _______ during an ionic bond.
Lose 7 electrons becoming positive.
Gain 1 electron becoming negative.
84
Voltage is the measure of ____ and is measured in ____.
Fuel, Warp.
Potential difference, Volts.
Warp speed, AU.
Current, Amps.
85
Energy Star and EnerGuide labels
DO NOT
show how if products are energy efficient.
True
False
86
Neutrons contain no charge.
False
True
87
How many significant digits does this number have? 100
3
1
2
4
88
Producers can also be called:
Autotrophs
Prototrophs
