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3rd CFA Review

Total questions: 115

Worksheet time: 58mins

Name
Class
Date
1.
What increases and decreases voltage?
a)
voltmeter
b)
generator
c)
transformer
d)
barometer
2.
What type of simple machine is the claw end of a hammer?
a)
ramp
b)
pulley
c)
wheel and axle
d)
lever
3.
What is the source of energy in a simple light bulb circuit made in the classroom?
a)
battery
b)
wires
c)
light bulb
d)
switch
4.
The sun beats down on a solar panel all day so you can power your house at night. What kind of energy is inside the solar panel?
a)
chemical energy
b)
kinetic energy
c)
electrical energy
d)
mechanical energy
5.
What are the three main parts of an electrical power grid?
a)
boilers, condensers, turbines
b)
dams, generators, turbines
c)
hydroelectric plants, solar power plants, nuclear power plants
d)
power stations, transmission lines, transformers
6.
How does a generator produce electricity?
a)
Using batteries
b)
By burning fossil fuels to create energy
c)
Spinning a copper coil between two magnets to produce an electric current
d)
splitting atoms to create nuclear fission
7.
Solar Cells can be used to power a radio. Which option describes the energy transformation in this process?
a)
solar energy>chemical energy>electrical energy>sound energy
b)
solar energy>electrical energy>chemical energy>sound energy
c)
solar energy>chemical energy> mechanical energy> sound energy
d)
solar energy> mechanical energy>chemical energy>sound energy
8.
Joe has a toy boat powered by batteries. When the switch is on, the boat moves. The energy transformations that take place in the toy boat are shown below:
chemical energy>>X>>mechanical energy
What form of energy is X?
a)
heat energy
b)
light energy
c)
sound energy
d)
electrical energy
9.
Suzy is pushing a speaker up a stage ramp instead of lifting it up. How does this help Suzy?
a)
It reduces the size of the speaker.
b)
It alters the directions of force applied
c)
It helps move the speaker in minimum time.
d)
It reduces the amount of force required to lift the speaker.
10.
What is an example of work being done?
a)
Pushing a shopping cart across the parking lot
b)
holding a 10 lb baby for ten minutes
c)
pushing a 10,000 lb rock and not moving it at all
d)
standing on one foot for 30 seconds
11.
Scotty and Cris are throwing footballs. Scotty's ball goes 70 yards. Cris's ball only goes 20 yards.  Which statement describes work being done?
a)
Both boys did work
b)
Only Scotty did work
c)
Only Cris did work
d)
Neither boy did work
12.
Mr. Stone used a pulley to load a box onto the back of his truck. What is the advantage of using a pulley in this situation?
a)
It reduces the weight of the box
b)
It reduces the force required to lift the box
c)
It reduces the time required to lift the box
d)
The reduces the height to which the box needs to be lifted
13.
Tom finds when the weight of his boxes is more than 60 kg, it is too hard to push up his ramp at work. How can he make it easier to move the boxes up the ramp?
a)
Increase the height of the ramp
b)
Decrease the height of the ramp
c)
Increase the length of the ramp
d)
decrease the length of the ramp
14.
The Boy Scouts cook hot dogs over a campfire. Which form of energy produced by the burning wood in the campfire cooks the hot dogs?
a)
chemical energy
b)
electrical energy
c)
heat energy
d)
solar energy
15.
What form of energy can be found in an apple?
a)
light energy
b)
kinetic energy
c)
chemical energy
d)
solar energy
16.
Which energy source produces MOST of the energy used on Earth today?
a)
Moon
b)
Sun
c)
wind
d)
Water
17.
Why would it be important to build a new house with insulation in the walls?
a)
To prevent cold air from outside getting inside the house
b)
Heat from outside the house can be absorbed
c)
Slow down loss of heat on cold days
d)
To generate heat on cold days
18.
What type of currents cause global winds?
a)
conduction
b)
convection
c)
radiation
d)
solar
19.
A metal spoon is used to stir hot coffee in a mug. Which statement describes the heat transfer that occurs?
a)
from mug to spoon
b)
from spoon to mug
c)
from spoon to coffee
d)
from coffee to spoon
20.
Which of Earth's gases is considered a greenhouse gas?
a)
oxygen
b)
nitrogen
c)
hydrogen
d)
carbon dioxide
21.
Water forms on the outside of a glass of Kool-aid on a hot day. What process causes the water to form?
a)
condensation
b)
evaporation
c)
precipitation
d)
transpiration
22.
Where does the greatest atmospheric pressure occur?
a)
mesosphere
b)
troposphere
c)
thermosphere
d)
stratosphere
23.
How do transpiration and evaporation compare?
a)
During both processes, liquid water changes to water vapor
b)
During both processes water vapor changes to liquid water
c)
During transpiration, liquid water changes to water vapor, and during evaporation, water vapor changes to liquid water.
d)
During transpiration, water vapor changes to liquid water, and during evaporation, liquid water changes to water vapor
24.
What information do meterologist use and track to provide the basis for daily weather forecasts?
a)
tidal waves
b)
ocean currents
c)
moon phases
d)
air mass movements
25.
Which weather event is closely associated with downdrafts which chill the air and make it more dense than the surrounding air?
a)
fog
b)
hurricane
c)
thunderstorm
d)
tornado
26.
Solar energy is best absorbed by what material?
a)
dirt
b)
sand
c)
snow
d)
water
27.
Kevin fills a bowl with cold water and records its temperature. Next, he drops in six hot rocks and waits 30 seconds. Then, Kevin measures the temperature of the water again and finds it has increased in temperature by many degrees.
What caused the change?
a)
Thermal energy caused the cold water particles to transfer to the rocks
b)
Thermal energy caused the hot rock particles to transfer to the cold water
c)
No energy particle exchange happened
d)
All of the above
28.
Pam is at the top of a ski slope. She stops mid way to adjust her ski and then continues. She jumps off of a ramp and lands near the bottom of the slope. At which point did Pam have the most potential energy?
a)
Very top of the slope
b)
Mid-point of the slope
c)
Coming off of the ramp
d)
At the bottom of the slope
29.
Name two simple machines that combine to make a wheel barrow.
a)
levers; wheel and axel
b)
levers; pulleys
c)
inclined plane, pulleys
d)
inclined plane; wheel and axel
30.
What are the simple machines that are part of the fishing rod and reel?
a)
a lever and wedge
b)
a pulley and wedge
c)
a lever, a wheel and axle, and a pulley
d)
a wedge, a wheel and axle, and a pulley
31.
Differences in the temperature between the North and South poles and the equator create thermal currents in the atmosphere that form global winds.What is the source of energy for these currents?
a)
equator
b)
moon
c)
Sun
d)
tides
32.
What are all of the climate zones that result from the unequal heating of Earth?
a)
tropical and polar
b)
temperate and polar
c)
temperate and tropical
d)
tropical, temperate, and polar
33.
What occurs when cool air moves from the ocean toward the beach during the day?
a)
a land breeze
b)
a prevailing wind
c)
a sea breeze
d)
an updraft
34.
The diagram represents solar energy that is absorbed by Earth's land and water surfaces and is changed into heat that radiates back into the atmosphere.What is this process called?
a)
ozone
b)
radiation
c)
greenhouse effect
d)
evaporation
35.
The map shows the major atmospheric convection areas.Which zones are temperate regions?
a)
V and Z
b)
X and Y
c)
W and Y
d)
Z and X
36.
Which process accurately describes the formation of the greenhouse effect?
a)
The Sun's rays are reflected from the land back into the atmosphere.
b)
Increased solar energy is entering through the hole in the ozone layer.
c)
Aerosol gases become trapped and build up in the atmosphere.
d)
Heat radiating from the land and oceans is trapped in the troposphere.
37.
Solar energy is best absorbed by what material?
a)
dirt
b)
sand
c)
snow
d)
water
38.
The oceans make up 70% of Earth's surface. They regulate the overall temperature of the earth by absorbing a great deal of solar energy and heating up slowly. What is true about the oceans' release of heat?
a)
The oceans release heat rapidly and add to the greenhouse effect.
b)
The oceans release heat more slowly than the land.
c)
The oceans release heat more rapidly than the land.
d)
The oceans release heat at the same rate as the land.
39.
The tropical regions are warmer than the polar regions due to the angle of the Sun's rays. As a result, there is generally higher pressure at the poles and lower pressure at the equator, so which way does the wind blow on the Earth's surface?
a)
The wind blows cold air toward the equator from the poles.
b)
The wind blows warm air from the poles to the equator.
c)
The wind blows cold air from the equator to the poles.
d)
The wind blows warm air from the equator to the poles.
40.
The horizontal line on the map represents the equator.In which major climate zone is the equator located?
a)
polar
b)
subtropical
c)
temperate
d)
tropical
41.
The diagram represents several locations on the surface of the Earth. Each location is at sea level and surrounded by ocean water.Which two locations will have the closest annual average air temperature?
a)
locations W and X
b)
locations X and Z
c)
locations W and Y
d)
locations Z and Q
42.
Convection is the main driver for the creation of winds.In what direction does the wind blow during the day?
a)
from ocean to land
b)
from land to ocean
c)
along the coast
d)
with the trade winds
43.
Which statement accurately compares the heating and cooling rates for water and land?
a)
Water heats up and cools down at a faster rate than land.
b)
Land heats up and cools down at a slower rate than water.
c)
Water heats up and cools down at a slower rate than land.
d)
Land and water heat up and cool down at the same rate.
44.
What is the source of energy for the Earth's water cycle?
a)
Sun's radiation
b)
ocean currents
c)
trade and prevailing winds
d)
Moon's gravitational attraction
45.
Lisa wants to set a world record for the fastest time traveled across the continental United States in a hot air balloon. In which direction should Lisa travel in order to set the world record?
a)
eat to west
b)
north to south
c)
south to north
d)
west to east
46.
Which general direction do air masses move over the continental United States?
a)
north to south
b)
south to north
c)
east to west
d)
west to east
47.
The planetary winds on the Earth are shown in the diagram.What causes the curved paths of the planetary winds?
a)
magnetic forces of the poles
b)
gravitational pull of the moon
c)
revolution of the Earth around the Sun
d)
rotation of the Earth
48.
In the Northern Hemisphere, winds traveling north appear to curve to the east. What explanation exists for this phenomenon?
a)
convection currents
b)
Coriolis Effect
c)
polar easterlies
d)
trade winds
49.
The diagram represents fast-moving meandering air currents found in the atmosphere. Meteorologists use their location as an aid in weather forecasting.What are these strong air currents called?
a)
jet streams
b)
polar winds
c)
trade winds
d)
westerlies
50.
The table lists information about two towns (A and B) located on a mountain.Which statement correctly  determines the climates of the towns?
a)
Town A will be cooler than Town B because it is located near the peak of the mountain.
b)
Town A will be the same temperature as Town B because they are located on the same latitudes.
c)
Town A will be warmer than Town B because the Sun’s rays directly strike the peak of the mountain, and the base of the mountain is covered by clouds.
d)
Town A will be warmer than Town B because warm air rises up to the peak of the mountain, and cold air sinks to the base of the mountain.
51.
The diagram shows the three major climate zones on Earth. The average annual temperatures vary across the three zones.Which option correctly determines the reasons for the variations in temperature among the three climate zones?
a)
Changes in the position of the Sun in the sky &
The Earth's revolution around the Sun
b)
Changes in the orbital path of the Earth & Earth's rotation of its titles axis
c)
The Sun's rays striking Earth at different angles & the tilt of the Earth's axis
d)
The increase in distance between the Sun and Earth & changes in the angle of Earth's tilt
52.
The map shows a hurricane that has formed in the Gulf of Mexico and the four predicted paths the hurricane might take in the next 24 to 48 hours.Which track best predicts the path the hurricane will most likely follow?
a)
Track 1, as the trade winds will move the hurricane northwest to the coast of Texas (TX).
b)
Track 2, as the cold air current will force the hurricane to the Atlantic Coast and cross over Florida (FL).
c)
Track 3, as the warm water will move the hurricane south to hit the coast of Yucatan.
d)
Track 4, as Earth’s rotation will move the hurricane southwest to make landfall on the coast of Cuba.
53.
Which statement is true about the major jet stream winds of Earth?
a)
They blow from the east
b)
They blow from the west
c)
They blow from the north
d)
They blow from the south
54.
The arrow in the diagram indicates the deflection of air and water due to the rotation of the earth.What is this deflection called?
a)
coriolis effect
b)
cyclone effect
c)
gradient effect
d)
rotation effect
55.
How do air masses move across the continental United States?
a)
from west to east
b)
from east to west
c)
from north to south
d)
from south to north
56.
The map shows the location of a hurricane formed in the Atlantic Ocean between 25°N and 30°N latitude in the month of August.The hurricane is moving in a northwest direction. Which statement best predicts the likelihood of landfall of the hurricane on the Atlantic Coast?
a)
The hurricane will make landfall along the Atlantic Coast, as the trade winds will likely move it west.
b)
The hurricane will not make landfall along the Atlantic Coast, as the low water temperature will not sustain the hurricane.
c)
The hurricane will make landfall along the Atlantic Coast, as the cold Arctic air will likely force it northwest.
d)
The hurricane will not make landfall along the Atlantic Coast, as the warm water current will move it to the Gulf of Mexico.
57.
Andrew lists the characteristics of a type of cloud.*It is associated with cold fronts* It produces heavy rains and lightning*It is also called a thunderhead. What type of cloud is described in the list?
a)
cirrus
b)
cumulonimbus
c)
nimbostratus
d)
stratus
58.
Mr. White shows and image of some clouds to his students. The clouds are white and puffy with flat bottoms. What type of clouds did he show his class?
a)
cirrus
b)
cumulus
c)
nimbostratus
d)
stratus
59.
Ashley walks on the beach in the middle of the day and notices that the sand is hotter than when she walked on the beach the night before. What causes the sand to be hotter in the middle of the day?
a)
The sand is hotter because there are less clouds during the day than at night
b)
The sand is hotter because there are more clouds during the day than at night.
c)
The sand is hotter because radiation from the sun heats the sand during the day.
d)
The sand is hotter because convection currents in the air heat the sand during the day.
60.
Computer models have been used to aid meteorologists in weather forecasting since the 1950s. The ability to forecast which type of weather phenomenon has greatly improved in the last 20 years?
a)
blizzards
b)
droughts
c)
hurricanes
d)
thunderstorms
61.
A thunderstorm is occurring. The wind is blowing, and it is raining hard. What type of cloud is overhead?
a)
altostratus
b)
cirrus
c)
cumulonimbus
d)
stratus
62.
What type of clouds form at high altitudes and are thin and usually white?
a)
cirrus
b)
cumulus
c)
nimbus
d)
stratus
63.
Which clouds are:  1. formed at high elevations  2. wispy clouds usually consisting of ice crystals
a)
cirrus
b)
cumulus
c)
cumulonimbus
d)
nimbostratus
64.
What weather condition is associated with cumulonimbus clouds?
a)
snow
b)
fog
c)
fair weather
d)
thunderstorms
65.
Which measurements should be included when accurately describing the wind?
a)
both air temperature and direction
b)
both air pressure and speed
c)
both speed and direction
d)
both dew point and speed
66.
Cain sees tall, puffy, dark gray cumulus clouds with flat bottoms and anvil-shaped tops forming over his town. What type of weather will his town most likely experience soon?
a)
drizzle
b)
foggy skies
c)
sunny skies
d)
thunderstorms
67.
What type(s) of clouds might be expected during fair weather conditions?
a)
cirrus only
b)
cirrus and cumulus
c)
cirrus and stratus
d)
cirrus, cumulus, and stratus
68.
A student described a layer of the atmosphere in the list.  1. This is the coldest layer.  2. Meteors burn up in this layer. 3. Nitrogen and oxygen are found in this layer.Which layer of the atmosphere is described? 
a)
exosphere
b)
mesosphere
c)
stratosphere
d)
troposphere
trop
69.
What are the two most common gases found throughout the atmospheric layers?
a)
carbon dioxide and oxygen
b)
ozone and water vapor
c)
nitrogen and oxygen
d)
carbon dioxide and nitrogen
70.
How does the ozone layer help life on Earth?
a)
It produces oxygen for the atmosphere
b)
It protects Earth from meteors
It protects the Earth from meteors
c)
It absorbs damaging ultraviolet radiation from the Sun
d)
It reflects most of the Sun's radiation to keep the planet cool
71.
In which atmospheric layer does all weather occur?
a)
exosphere
b)
stratosphere
c)
thermosphere
d)
troposphere
72.
What atmospheric layer contains the ozone?
a)
exosphere
b)
mesosphere
c)
stratosphere
d)
troposphere
73.
Where does the greatest atmospheric pressure occur?
a)
mesosphere
b)
stratosphere
c)
thermosphere
d)
troposphere
74.
When a person climbs a mountain, what happens to the air pressure around him?
a)
It decreases
b)
It increases
c)
It remains constant
d)
It decreases, then increases
75.
Which is the correct sequence of atmospheric layers from the lowest altitude to highest?
a)
mesosphere, troposphere, thermosphere, exosphere
b)
troposphere, stratosphere, mesosphere, thermosphere, exosphere
c)
exosphere, troposphere, stratosphere, mesosphere, thermosphere
d)
stratosphere, mesosphere, troposphere, exosphere, thermosphere
76.
Which example is a form of precipitation?
a)
dew
b)
fog
c)
frost
d)
hail
77.
Rain and snow are two forms of precipitation that fall on Earth's surface. Which factor is responsible for there being different forms of precipitation?
a)
evaporation
ev
b)
runoff
runoff
c)
temperature
temperature
d)
transpiration
78.
Which processes of the water cycle will add water vapor to the atmosphere?
a)
evaporation and condensation
b)
condensation and precipitation
c)
precipitation and transpiration
d)
transpiration and evaporation
79.
A storm that produces very heavy precipitation passes over Columbia, SC. If the rain falls on a surface that is not porous, what will most likely happen to the rain?
a)
condensation
b)
evaporation
c)
runoff
d)
transpiration
80.

One characteristic used to place organisms into kingdoms is

a)

how they move

b)

where they live

c)

their ability to make food

d)

their ability to reproduce

81.

Which group of organisms includes only multicellular heterotrophs?

a)

protists

b)

bacteria

c)

plants

d)

animals

82.

Which is the broadest classification level?

a)

family

b)

domain

c)

phylum

d)

species

83.

What is taxonomy?

a)

the scientific study of how living things are classified

b)

Darwin's theory about how animals evolve

c)

the process used by scientists to classify rocks

d)

the process of observing an organism's behavior

84.

An organism's scientific name consists of

a)

its class name and family name

b)

its kingdom name and phylum name

c)

its genus name and species name

d)

its phylum name and species name

85.

Spontaneous generation is a mistaken idea because living things

a)

exhibit binomial nonmenclature

b)

are produced only by living things

c)

do not reproduce

d)

maintain homeostasis

86.

What contribution of Charles Darwin had a major impact on classification?

a)

binomial nonmenclature

b)

taxonomy

c)

seven levels of classification

d)

his theory of evolution

87.

Which kingdoms are both unicellular and multicellular?

a)

fungi and plants

b)

fungi and protists

c)

protists and animals

d)

protists and plants

88.

Organisms that make their own food are called?

a)

heterotrophs

b)

eukaryotes

c)

fungi

d)

autotrophs

89.

A bird fluffs its feathers to trap body heat to keep warm during winter months. This is an example of

a)

homeostasis

b)

homeopathy

c)

spontaneous generation

d)

asexual reproduction

90.

In what plant cell structure is water stored?

a)

chloroplast

b)

cell wall

c)

vacuole

d)

cytoplasm

91.

What are the products of photosynthesis?

a)

carbon dioxide and water

b)

carbon dioxide and oxygen

c)

glucose and oxygen

d)

sugars and ribosomes

92.

What produces egg and sperm cells during the life cycle of a plant?

a)

gamete

b)

sporophyte

c)

gametophyte

d)

zygote

93.

A grapevine coiling around a fence post is an example of

a)

positive gravitropism

b)

positive thigmotropism

c)

negative phototropism

d)

negative gravitropism

94.

What happens in the phloem?

a)

Water moves up from the roots

b)

Food moves down from the leaves

c)

Food moves up from the roots

d)

Water moves down to the roots

95.

What part of a woody stem forms rings that indicate the tree's age?

a)

xylem

b)

phloem

c)

cambium

d)

inner bark

96.

The parts of a plant's life cycle are

a)

sporophyte and spore

b)

sporophyte and gametophyte

c)

spore and gametophyte

d)

egg and gametophyte

97.

What happens during respiration?

a)

Oxygen is released into the air

b)

Glucose is broken down, releasing energy

c)

Carbohydrates are released into the bloodstream

d)

Water and carbon dioxide are converted into energy

98.

Germination will not happen unless a seed

a)

is dispersed far from the original plant

b)

absorbs water

c)

uses stored food

d)

grows a stamen and a pistil

99.

Which of the following is NOT a characteristic that plants have?

a)

Nearly all plants are autotrophs

b)

Plants are prokaryotes

c)

Nearly all plants make food through photosynthesis

d)

Plant cells have cell walls made of cellulose

100.

What characteristic do all algae share?

a)

they are autotrophs

b)

they are unicellular

c)

they are multicellular

d)

they live in colonies

101.

Like animals, animal-like protist are

a)

autotrophs

b)

heterotrophs

c)

unicellular

d)

prokaryotes

102.

How are fungi-like protist similar to fungi?

a)

they are unable to move

b)

they are autotrophs

c)

they use spores to reproduce

d)

they do not have cell walls

103.

The spores fungi-like protists produce

a)

grow into new organisms

b)

produce slime on which the protist can move

c)

break down food for the protist

d)

form pseudopods

104.

Which is one advantage of sexual reproduction?

a)

more offspring are produced

b)

more offspring survive to maturity

c)

the offspring have more genetic variation

d)

the offspring and the parents are identical

105.

The joining of an egg cell and sperm cell is called

a)

gestation

b)

adaption

c)

asexual reproduction

d)

fertilization

106.

An offspring that is the result of asexual reproduction

a)

has two parents

b)

developed from a zygote

c)

inherited genes from two parents

d)

is genetically identical to its parent

107.

Behavior almost always helps an animal

a)

locate other animals of the same species

b)

either survive or reproduce

c)

show that it is afraid or tired

d)

protect itself from predators

108.

Which of the following structures is formed when fertilization occurs?

a)

egg

b)

ovary

c)

sperm

d)

embryo

109.

Which of the following is true of vertebrates and invertebrates?

a)

Both undergo sexual reproduction

b)

Both undergo reproduction to make more of their own kind

c)

Both are genetically identical to its parents

d)

Both inherit genes from both parents

110.

Which of the following animals have skeletons without hard parts?

a)

owls

b)

jellyfish

c)

ants

d)

dogs

111.

Suppose that you close a window because you notice that rain is falling.

a)

involuntary reaction

b)

depressant

c)

stimulus

d)

response

112.

Which of these provides support and protection for many insects?

a)

muscle

b)

skeleton

c)

spinal cord

d)

exoskeleton

113.

An adaptation that helps amphibians move from place to place in water is

a)

eggs covered by jelly

b)

moist skin

c)

webbed feet

d)

a strong skeleton

114.

Why do arthropods undergo molting as they grow?

a)

Their skeletons have no hard parts

b)

Their exoskeletons cannot grow

c)

Their exoskeletons wear out

d)

Their skeletons are made of cartilage, which does not grow

115.

Animals that have both pointed and flat teeth are most likely

a)

carnivores

b)

herbivores

c)

ominvores

d)

filter feeders

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