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WCAS test prep
WCAS test prep
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A little bit of this and that from each WCAS module!
Flashcards
80 cards
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Questions
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Answers
1
How do you predict the soccer ball will move?
move up
move down
move left
move right
2
What is a food chain?
Path of energy from one organism to the next.
The study of how living and non living things interact.
Members of a species living in the same area.
The same as a food web.
3
Esophagus, blood vessels, blood bring nutrients into your body. What 2 systems work together?
digestive, integumentary
circulatory, respiratory
respiratory, digestive
digestive, circulatory
4
Which of the following would be considered an element?
Methane (CH4)
Fluorine gas (F2)
A compound
Carbon Dioxide (CO2)
5
Why does the moon have phases?
The amount of light given off by the moon changes daily
The Moon appears to have phases due to position in the sky
earth orbits the moon, moon position changes
Parts of the moon disappear and come back throughout the day
6
What are herbivores?
consumers that eat plants for energy.
omnivores that eat plants for energy.
consumers that eat only herbs for energy.
carnivores that eat plants for energy.
7
Which of the following best explains the difference in these materials?
The arrangement of the atoms of each one
The number of atoms each one is made of
The elements of which each one is made
The size and shape of the individual atoms
8
main function of this system is to control & send messages between organs and your brain.
Circulatory
Muscular
Nervous
Digestive
9
Fossils are found in this type of rock
igneous
They are found in all 3 types
metamorphic
sedimentary
10
What are 2 organelles that plant cells have but animal cells don't have?
chloroplasts, mitochondria
cell membrane, cytoplasm
cell wall, chloroplasts
golgi apparatus, cell wall
11
What is the correct definition of thermal energy?
energy stored in an atom's nucleus
energy that is stored in chemicals and released
Energy of a substance due to the movement of its particles
energy that electrons have as they flow in a circuit
12
Carbohydrates are found in many foods. What is the end result of the body’s use of a carbs?
Carbs break down to glucose
glucose breaks down to smaller molecules releasing energy
Both answers are correct
13
The picture shows what type of cell?
plant cell
could be either
this is not a cell
animal cell
14
Humans see different colors because our eyes are responding to light that is different in:
speed
wavelength
amplitude
angle
15
Which of the following waves has the highest frequency?
A
B
D
C
16
Animals that hunt other animals are called
____.
Animals that are hunted are called
____.
predators, prey
prey, predators
producers, consumers
carnivores, consumers
17
Name the three groups that living things can be divided into?
decomposers, fungi, producers
species, herbivores, producers
consumers, carnivores, scavengers
producers, consumers and decomposers
18
This type of rock forms under heat and pressure.
igneous rock
morphobic rock
sedimentary rock
metamorphic rock
19
Which of the following formulas represents a compound?
Na
All of these
NaCl
Cl2
20
The sun heats up liquid water and changes it to a gas by the process of:
condensation
precipitation
runoff
evaporation
21
Which of the following best explains the relationship between molecules and atoms?
Atoms are molecules that have a charge.
Molecules are made up of two or more atoms.
Molecules are atoms that have no mass.
Atoms have smaller parts, called molecules.
22
When the Earth moves between the sun and the moon This is an eclipse of the:
moon – a lunar eclipse
sun – a solar eclipse
moon – a solar eclipse
sun – a lunar eclipse
23
The nucleus:
is the control center of the cell.
removes waste material
moves materials in and out of the cell
recycles materials in the cell
24
You mix together citric acid and washing soda. How do you know there is a chemical reaction?
The products are different from the reactants.
It is still washing soda.
There are new atoms in the products
It is still citric acid.
25
Ecosystems with similar climate, plants and animals are called
_____________
species
ecosystems
biomes
populations
26
Which of the following provides an example of sound waves being reflected?
The sound of a distant train getting louder as it approaches
Water in a glass vibrating because of the sound of thunder
noise produces an echo when it bounces off a distant wall
Hearing music being played by a stereo through a wall
27
It takes more force to slide a wooden block on a rough surface than a smooth surface because...
The force of friction is stronger with smoother surfaces.
The force of friction is stronger with rougher surfaces.
The force of friction is the same for every surface.
The force of gravity is pulling at a different strength.
28
Which of the following is the best description of the results of a chemical reaction?
Changes from liquid to solid at low temperature.
The substance seems to disappear after dissolving in water.
A new substance with different properties is formed.
The reaction can be reversed to get back the original.
29
Which ball has the greatest amount of kinetic energy?
Ball B
Ball C
Ball D
Ball A
30
Why are food webs more complicated than food chains?
There are more animals in a food chain
They aren't more complicated.
There are more predators.
Because organisms eat more than one type of thing.
31
_______________ forms from the compaction and/or cementation of sediments.
metamorphic
compacto rock
igneous
sedimentary rock
32
What does it mean when the forces on an object are
unbalanced
?
object will move in the same direction that has most force
object will not move because the forces are equal
object will not move, the forces are in the same direction
object will move opposite the direction that has most force
33
Members of a species living in the same area are known as a...
biome
population
group
pack
34
A book sitting on a table has PE Which of the following would increase the potential energy?
Lifting it to a high shelf
Dropping it on the floor
Sliding it across the table
Opening it to the middle
35
How do you predict the block below will move?
move to the right
move up
It won’t move
move down
36
Which of the following provides the best description of the function of chromosomes?
Producing energy through cellular respiration
Relaying information from the environment
Ridding individual cells of waste products
Controlling the production of specific proteins
37
Which of these blood vessels are in the correct order from Largest to Smallest?
arteries, veins, capillaries
arteries, capillaries, veins
veins, arteries, capillaries
capillaries, veins, arteries
38
Which of these levels of organization are in the correct order?
organism, cells, tissues, organ system, organ
cells, organ system, organ, tissues, organism
cells, tissues, organ, organ system, organism
tissues, cells, organs, organ system, organism
39
__ explains how large pieces of the Earth's tectonic plates, move and change shape.
Plate theory
Earth's rotation
Plate Tectonics
Earthquakes
40
Cycle that changes rocks from one kind to another.
mineral cycle
nitrogen cycle
rock cycle
water cycle
41
Genes are located in which part of the cell?
Chromosome
Ribosome
Cytoplasm
Vacuole
42
What gives plants energy to make food?
the moon
water
soil
the sun
43
Photosynthesis occurs when it is ____________ and respiration occurs __________..
light, in the light and the dark
light, only at night
light, only in the summer
dark, in the light and the dark
44
Evidence for plate tectonics includes the following, except...
fossils on continents beside each other match up
the continents, look like they fit in a puzzle
rock types/mountains on continents match up.
ancient tunnels that connected the continents
45
Skin, hair, nails are part of this system.
skeletal
immune
circulatory
integumentary
46
What are the 3 ingredients for photosynthesis?
glucose, carbon dioxide, water
carbon dioxide, water, light energy
water, oxygen, carbon dioxide
light energy, glucose, sugar
47
Which of the following can be concluded from the graph?
Kinetic energy increases as speed increases.
All moving objects have the same kinetic energy.
Speed is only related to the size of an object.
Kinetic energy only changes when speed changes.
48
Which of the following accurately describes the reactants and the products of a chemical rxn?
products of a reaction have different properties.
products contain the same number of atoms as the reactants
both answers are correct
49
When the water in the clouds gets too heavy, the water falls back to the earth. This is called:
precipitation
evaporation
sublimation
saturation
50
Convection currents occur in the __________.
mantle
inner core
outer core
crust
51
How can friction affect an object’s motion?
Speed up or start moving
Change Direction
All of these answers
Slow Down
52
What does it mean when the forces on an object are
balanced
?
The object will move to the left
The object will move to the right
The object will move to the left
will not move because the forces are equal/opp directions
53
Why is it necessary to convert carbohydrates into sugars?
The body cannot get sugars from other sources
Because sugars taste better than carbohydrates.
So they can be absorbed by the body.
Chemical energy is only found in sugars.
54
The main function of this system is to bring nutrients into your body and remove solid waste.
Digestive
Respiratory
Nervous
Skeletal
55
Water is being cycled through the atmosphere, ocean, and land. This process, known as the:
photosynthesis
carbon cycle
rock cycle
water cycle
56
car slams on the brakes. Car slows down then stops. What force stopped the car?
Friction between the car tires and the road.
Friction between driver and the brakes.
No force. The car stops because of the brakes.
Gravity between the brakes and the car tires.
57
Which of the following would be the most immediate result of a gene mutation in an organism?
Decreased need for resources by the organism
A change in a protein produced by the organism
Increased reproductive success of the organism
Shortened life span of the organism
58
Which of the following is made of atoms?
Carbon Dioxide
Noise
Sunlight
Kinetic Energy
59
What type of energy can be used to describe the movement of the balls?
kinetic energy
Thermal energy
radio energy
light energy
60
Which statement best describes a cell?
compartment that contains DNA & regulates genes
A sac-like membrane that stores water.
cytoplasm surrounded by a membrane
The smallest structural and functional unit of life
61
What are the 3 types of rocks?
igneous, metamorphic and sedimentary
solid, liquid, gas
metamorphosis, sediments, intrusive
metamorphic, silicas, igneous
62
Which of the following are phases of the moon?
Waxing Crescent, Waning Gibbous
full Moon, Wasting Crescent
Half Moon, Shell Moon
Waxing Gibbous, Old Moon
63
During a solar eclipse, the moon casts a shadow onto ________
the moon
Earth
the stars
the sun
64
Put the layers in the correct order from the outside of the Earth --> inside of the Earth.
outer core, inner core, mantle, crust
crust, mantle, outer core, inner core
crust, outer core, inner core, mantle
mantle, inner core, outer core, crust
65
If humans don’t use photosynthesis, why do we rely on it to survive?
we need to eat plants to survive
we need photosynthesis to decompose
it provides carbon dioxide so that we can breathe
it provides oxygen so that we can breathe
66
What is ecology?
the study of how living and non-living things interact
a biotic community working with their abiotic factors
the path of energy from one organism to the next
the process that plants use to make their own food
67
Students are modeling waves by shaking a rope up and down. We know this is a wave because –
it has a specific wavelength, frequency and amplitude
Answer 1 and 2
it looks like a wave
it has a repeating pattern
68
What is an ecosystem?
the path of energy from one organism to the next
abiotic and biotic things working and interacting together
the process that plants use to make their own food
Members of a species living in the same area
69
Which of the waves is carrying the greatest amount of energy?
A
C
D
B
70
A pencil is in a glass of water. Why does the pencil appears to be broken?
The pencil absorbs all the light rays that hit it
Light rays are bent by the water in the glass.
Water reflects light rays away from the pencil.
The surface of the water reflects light rays.
71
Which is true about sound waves
Sound waves can travel through and reflect off rock layers.
Sound waves can travel for an unlimited distances
Sound waves are absorbed by solids & reflect off liquids.
Sound waves require electricity to generate them
72
A genetic mutation will most immediately affect which of the following?
The structure of 1 or more proteins produced by the organism
The number of chromosomes within each cell of the body
The overall health of the individual throughout its lifespan
The ability of the organism to survive in its environment
73
This system brings oxygen into your body and removes carbon dioxide waste.
Integumentary system
Respiratory system
Circulatory system
Muscular system
74
The correct equation for photosynthesis is:
water + carbon dioxide + glucose --> energy + oxygen
oxygen + carbon dioxide +light energy --> glucose + water
glucose + water + carbon --> oxygen
water + carbon dioxide +light energy --> glucose + oxygen
75
Heart, lungs, diaphragm work together to bring oxygen to your body. What systems work together?
digestive and circulatory
circulatory and skeletal
circulatory and respiratory
respiratory and digestive
76
How do you predict the block below will move?
Move left
move up
not move
move right
77
________________ forms when molten rock (magma) cools and hardens.
magmatious rock
igneous rock
metamorphic rock
sedimentary rock
78
The main source of energy for every food chain is...
plants
the sun
the predators
the water source
79
The sun heats up liquid water and changes it to a gas by the process of:
condensation
precipitation
evaporation
runoff
80
At which position on the diagram would an apple have the greatest potential energy?
4
1
3
2
