Transcript Exam Review 2011

Question 1
Nitrogen-fixing bacteria live in
the roots of certain plants.
The plants provide sugar to
the bacteria, while the
bacteria provide nitrogen to
the plant
a. Competition
b. Parasitism
c. Commensalism
d. Mutualism
Question 2
A small celestial body that orbits
the Sun and has a bright nuclues
and a faint tail that always points
away from the sun.
a.
Comet
b.
Meteor
c.
Meteorite
d.
Quasar
Question 3
What is the mass of a substance
that has a density of 17.7 g/cm3
and a volume of 3.06 cm3?
a.
522.0 g
b.
54.2 g
c.
5.4 g
d.
54.162 g
Question 4
Ohms are the unit of measure of
_____________.
a.
Energy
b.
Power
c.
Voltage
d.
Resistance
Question 5
The maximum population
size of a particular
species that a given
ecosystem can sustain
indefinitely
a. Tolerance Range
b. Carry Capacity
c. Species Richness
d. Limits of Growth
Question 6
How many electrons does the
chlorine ion have?
a.
16
b.
17
c.
18
d.
None of the above
Question 7
An light bulb with resistance of
60  is attached to a circuit
with 120 V. What is the
current in the circuit?
a.
2W
b.
2J
c.
2A
d.
2V
Question 8
An organism that makes its own
energy-rich food compounds by
using the Sun’s energy
a.
Consumer
b.
Omnivore
c.
Producer
d.
Yucky
Question 9
The nucleus of an atom can
contain…
a.
Protons and neutrons
b.
Protons and electrons
c.
Electrons and neutrons
d.
Electrons, protons and
neutrons
Question 10
A solid body that enters Earth’s
atmosphere from outer space,
becoming hot and bright because of the
friction with Earth’s atmosphere.
a.
Comet
b.
Meteor
c.
Meteorite
d.
Quasar
Question 11
A series circuit contains three
identical lamps. The battery
has 30V. What is the potential
difference (voltage) across
each lamp.
a.
30V
b.
10V
c.
3V
d.
90V
Question 12
The process by which sugar is
converted into carbon dioxide,
water and energy
a.
Photosynthesis
b.
Cellular Respiration
c.
Biogeochemical Cycle
d.
Consumption
Question 13
How much current passes through a 6 Ω
resistor that has a potential difference of
50 V across the resistor?
a.
0.12 A
b.
8.3 A
c.
56 A
d.
300 A
Question 14
Atomic Mass is…
a. The number of protons in the nucleus
b. The number of electrons in the first orbit
c. The total number of electrons and
neutrons
d. The total number of protons and
neutrons in the nucleus
e. None of the above
Question 15
The zone around the Earth where
life can exist
a.
Biosphere
b.
Hydrosphere
c.
Lithosphere
d.
Atmosphere
Question 16
In a series circuit, you have a light bulb, an
ammeter and a voltmeter . You do not change the
light bulb, but you decrease the voltage. What
happens to the current as read on the ammeter?
a.
The current increases in the same ratio to
the voltage
b.
The current increases but not in the same
ratio to the voltage
c.
The current remains unchanged
d.
The current decreases in the same ratio to
the voltage
Question 17
The type of eclipse that
occurs when the Moon
passes between the Earth
and the Sun
a. Annular Eclipse
b. Lunar Eclipse
c. Sun Eclipse
d. Solar Eclipse
Question 18
A neutron is…
a. A positive charge located in the
orbits outside the nucleus
b. A neutral charge with a mass of one
c. A negative charge located in the
orbits outside the nucleus
d. A negative charge with a mass of one
Question 19
The distance from the Sun to the
Earth is 149,599,000 km or 1
Astronomical Unit (AU). If Jupiter
is 5.2 AU away from the sun, what
is the distance in kilometres?
a.
29,919,800 km
b.
777,914,800 km
c.
1.42 X 108 km
d.
7.78 X 1010 km
Question 20
The series of processes that
move water through the
environment
a.
Carbon Cycle
b.
Biogeochemical Cycle
c.
Nitrogen Cycle
d.
Water Cycle
Question 21
A current of 25 A passes through
an electrical motor. The motor is
attached to 100 V battery. What is
the motor’s resistance?
a.
40 W
b.
4.0 X 102 J
c.
4
d.
2,500 
Question 22
A region in which a mix of
organisms, including
humans, and the physical
environment form an
interacting unit
a.
Ecosystem
b.
Biological Niche
c.
Habitat
d.
Biosphere
Question 23
An arsenic ion has 33 protons, 36
electrons and 42 neutrons. What
is the Atomic Mass of the arsenic
ion?
a.
66
b.
69
c.
75
d.
111
Question 24
What is the term that means
“…abiotic conditions within
which a species can
survive?”
a. Carrying Capacity
b. Tolerance Range
c. Limiting Factors
d. Biome.
Question 25
Bromine has 35 electrons and
an Atomic Mass of 80. What
is the Atomic Number of
bromine?
a.
35
b.
45
c.
115
d.
Not enough information to
tell
Question 26
What proof supports the Big Bang Theory for the start of the
Universe?
a. Remnant heat from our very, very hot beginning has been
measured.
b. Galaxies appear to be moving away from us at speeds
proportional to their distance…suggesting an expanding
universe.
c. Hydrogen and oxygen have been found throughout the
universe…suggesting expansion
d. All of the above
e. A and B only
Question 27
How many electrons are in the
outer shell of the element
Potassium?
a.
1
b.
8
c.
18
d.
19
Question 28
The Earth-centred model of the solar
system is also called the
_______________
a.
Copernicus Theory
b.
Galileo Theory
c.
Geocentric Model
d.
Heliocentric Model
e.
Solar Plane Model
Question 29
Ions that share electrons form a
______________
a.
Covalent Bond
b.
Element
c.
Ionic Bond
d.
Unstable Octet
Question 30
What is the chemical name for Li2O?
a.
Lithium II oxygen
b.
Lithium oxide
c.
Di-lithium oxygen
d.
Oxygen lithide
Question 31
A sequence of organisms each
feeding on the next, showing how
energy is transferred from one
organism to another
a.
Food Chain
b.
Food Web
c.
Trophic Level
d.
Ecological Niche
Question 32
A flow of electrical charge is
_______ .
a.
Coulomb
b.
Current
c.
Power
d.
Voltage
e.
None of the above
Question 33
A representation of energy,
numbers or biomass
relationships in ecosystems
a.
Niche
b.
Ecological Pyramid
c.
Sustainability
d.
Biomass
Question 34
A device that restricts the flow of current in a
electrical circuit and converts the electrical energy
to another form of energy (e.g., light) is ________.
a.
Ammeter
b.
Fuse
c.
Insulator
d.
Load
e.
Switch
f.
Voltmeter
Question 35
What is the density of a material
when the mass is 20.4 g and the
volume is 18.6 cm3?
a.
38.5 g/cm3
b.
1.10 g/cm3
c.
97 g/cm3
d.
381.5 g/cm3
Question 36
Where does our Sun occur in the
Hertzsprung-Russell Diagram?
a.
In the Main Sequence
b.
Among the Red Giants
c.
Among the White Dwarfs
d.
Among the Supernova
Question 37
Type of circuit if five light bulbs
are linked in one circuit, and
if one light bulb is removed,
all the light bulbs stop
working
a.
Parallel Circuit
b.
Series Circuit
c.
One Circuit
d.
Combined Circuit
Question 38
The characteristic of a substance that
describes its ability to chemically
react with another substance is
____________.
a.
Chemical change
b.
Chemical property
c.
Physical change
d.
Physical property
Question 39
The measure of the total amount of energy
a star radiates per second is _______________.
a.
Aurora borealis
b.
Brightness
c.
Luminosity
d.
Radiation
e.
Supernova
Question 40
You have a parallel circuit. Total voltage is 2 V.
Resistor R1 = 1 Ω and Resistor R2 = 1 Ω. What
is the voltage on V1?
a.
0.5 V
b.
1V
c.
2V
d.
4V
Question 41
You have a parallel circuit. Total voltage is 2 V.
Resistor R1 = 1 Ω and Resistor R2 = 1 Ω. What
is the Total Current?
a.
0.5 A
b.
1A
c.
2A
d.
4A
Question 42
You have a parallel circuit. Total voltage is 2 V.
Resistor R1 = 1 Ω and Resistor R2 = 1 Ω. What
is the Total Resistance?
a.
0.5 
b.
1
c.
2
d.
4
Question 43
A solution is _________________
a. A substance that dissolves in a solute
b. A substance that dissolves a solute
c. A homogeneous mixture of two or more pure
substances
d. A pure substance that consists of only one
kind of atom
e. A mixture consisting of a gas or a liquid with
small particles spread through it, but if
left undisturbed, the particles will separate
Question 44
The most dominant theory about the origin of
the Universe.
a.
String Theory
b.
The Beginning
c.
Big Bang
d.
Soup Bowl
e.
Collision Theory
Question 45
Mass is __________________.
a.
A physical property
b.
The amount of matter a substance
contains
c.
The same regardless of location
d.
The net gravitational force exerted
on an object by all other objects.
e.
All of the above
Question 46
Any factor that restricts the
size of a population
a. Tolerance Range
b. Niche
c. Limiting Factors
d. Carrying Capacity
Question 47
Temperature, precipitation and
wind are examples of …..
a.
Abiotic Factors
b.
Biotic Factors
c.
Biome Factors
d.
Ecosystems
Question 48
Stars often begin as a __________________.
a.
Nebulae
b.
Low-Mass Supernova
c.
Red Dwarf
d.
Neutron Star
e.
Quasar
f.
None of the above
Question 49
How many elements are
in the chemical
compound Ca(OH)2?
a.
b.
c.
d.
2
3
5
Not enough information
to tell
Question 50
What element is represented
by the Bohr-Rutherford
Diagram?
a.
Fluorine
b.
Magnesium
c.
Neon
d.
Sodium
Question 51
What is a property of a Noble Gas?
a. Highly reactive
b. Unfilled outer shell
c. Chemically unstable
d. Rarely forms chemical
compounds, and if so, quickly
returns to an unbonded state
e. All of the above
Question 52
The remnant of a meteor that does not
burn up completely in Earth’s
atmosphere
a. Comet
b. Celestial Body
c. Meteorite
d. Quasar
Question 53
Law of Electric Charges states the
OPPOSITE CHARGES….
a.
Attract
b.
Repel
c.
Ignore
d.
Combine
Question 54
The process by which an object with
an electric charge produces the
opposite charge in a neighbouring
object WITHOUT touching it.
a.
Conduction
b.
Friction
c.
Induction
d.
Magnetism
e.
Radiation
Question 55
A light-year is ____________
a. The distance a beam of light
travels in a vacuum in one year
b. A distance of 63 240 Astronomical
Units
c. A measurement of inter-stellar
distances
d. All of the above
Question 56
Microbes that cause malaria live within
human blood cells
a.
Commensalism
b.
Mututalism
c.
Competition
d.
Parasitism
Question 57
An oxygen ion needs two electrons to
fill its outer shell (i.e., become a stable
octet). Oxygen bonds with sodium to
form Sodium oxide. The chemical
formula is Na2O. How many outer
valence electrons does sodium have?
a.
One
b.
Two
c.
Three
d.
Four
Question 58
The apparent movement of a planet in
the opposite direction to its usual orbit is
called ________________
a.
Interstellar Movement
b.
Magnetosphere
c.
Planetary Orbit
d.
Replication
e.
Retrograde Motion
Question 59
A system in which the products of a
reaction cause the rate of that reaction to
decrease.
a.
Conservation of Energy
b.
Nuclear Fusion
c.
Negative Feedback
d.
Potential Energy
e.
Epicycle
Question 60
Which planet is smaller than Earth?
a.
Mars
b.
Uranus
c.
Neptune
d.
Saturn
e.
None of the above
Answers
1d
9a
17d
25a
33b
41b
49b
57a
2a
10b
18b
26d
34d
42c
50d
58e
3c
11b
19b
27a
35d
43c
51d
59c
4d
12b
20d
28c
36a
44c
52c
60a
5b
6c
7c
13b 14d 15a
21c 22a 23c
29a 30b 31a
37b 38a 39c
45a 46c 47a
53a 54c 55a
….good job….keep
8c
16d
24b
32b
40c
48a
56d
going