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WorksheetsGeneral Science CET Review
Total questions: 152
Worksheet time: 1hrs 19mins
Science is a systematic study that is concerned with the following:
facts, principles, and methods that could be observed
facts, opinions, principles, and methods that could be observed
facts and principles that could be observed
facts and methods that could be observed
Science comes from which Latin word
Scientia
Studium
Sentio
Magus
What does Scientia mean?
to know
to observe
to hypothesize
to experiment
What are the characteristics of a scientific study?
well-planned
rigorously reasoned
repeatability
consistent results
sustainability
What is technology?
all the knowledge gained through careful observations and experiments
the application of scientific knowledge to improve life or satisfy needs
What is the key difference between science and technology?
science is knowledge gained, technology is the application of that knowledge
science is the application of knowledge, technology acquires the knowledge science needs
science makes use of the scientific method, technology is an applied science
Pick the best answer:
What is a unique characteristic of technology in relation to science?
using knowledge to improve life or satisfy needs
using knowledge to cure diseases
using knowledge to understand the environment
using knowledge to educate
What are the classifications of technology?
machines
products
processes
innovations
The scientific method is the logical method used by scientists to acquire knowledge that is used to explain phenomena in nature
true
false
What are the basic steps of the scientific method?
problem, info gathering, hypothesis, experimentation, conclusion, application of the principle
problem, hypothesis, experimentation, conclusion
problem, hypothesis, experimentation, analysis, conclusion
problem, hypothesis, experimentation, analysis, conclusion, application of the principle
What are the characteristics of a problem in the scientific method?
specific
measurable
attainable
sustainable
repeatable
A controlled experiment involves the manipulation of one of the conditions or factors that may affect the result of the experiment?
true
false
A controlled experiment is an experiment that restricts the experiment to a singular result
true
false
Trials are the number of times an experiment is repeated
true
false
Controls are the factors that are kept constant throughout the experiment
true
false
Controls are the factors that are manipulated throughout the experiment
true
false
Variables are the factors that change during the experiment
true
false
Variables are the factors that stay constant throughout the experiment
true
false
What is the independent variable?
The variable that is changed
The variable that is a result of change
The variable that stays constant throughout the experiment
What is the dependent variable?
The variable that is changed
The variable that is a result of change
The variable that stays constant throughout the experiment
What is the independent variable otherwise known as?
Experimental variable
Manipulated variable
Controlled variable
Integral variable
What is a conclusion in the scientific method?
A statement about the result of the experiment
Statement which describes what happens but does not explain the cause or occurrence
A hypothesis that can be explained from observation
A fact that can be explained through observation
What is a law in the scientific method?
A statement about the result of the experiment
Statement which describes what happens but does not explain the cause or occurrence
A hypothesis that can be explained from observation
A fact that can be explained through observation
What is a theory in the scientific method?
A statement about the result of the experiment
Statement which describes what happens but does not explain the cause or occurrence
A hypothesis that can be explained from observation
A fact that can be explained through observation
Measurement is the process of comparing a quantity with a chosen standard
True
False
Measurement is the process of comparing a quantity with another
True
False
What is the system of units that scientists have agreed upon and is legally enforced in almost all parts of the world?
International System (SI)
Global System (GS)
British Imperial System
US Customary System
There are 7 quantities in the International System (SI)
True
False
There are 6 quantities in the International System (SI)
True
False
What are the basic quantities in measurement?
Length, mass, time, electric current, temperature, amount of substance, luminous intensity
Length, mass, time, temperature, amount of substance, luminous intensity
Length, mass, time, temperature, luminous intensity
Length, mass, time, electric current, temperature, luminous intensity
Is electric current a basic quantity in measurement?
True
False
Is amount of substance a basic quantity in measurement?
True
False
What is the SI unit of length?
Meters
Kilograms
Seconds
Amperes
Kelvin
What is the SI unit of mass?
Moles
Kilograms
Seconds
Amperes
Kelvin
What is the SI unit of time?
Moles
Candelas
Seconds
Amperes
Kelvin
What is the SI unit of electric current?
Moles
Candelas
Seconds
Amperes
Kelvin
What is the SI unit of temperature?
Moles
Candelas
Seconds
Amperes
Kelvin
What is the SI unit of amount of substance?
Moles
Candelas
Seconds
Amperes
Kelvin
What is the SI unit of luminous intensity?
Moles
Candelas
Seconds
Amperes
Kelvin
What are the factors that affect the degree of accuracy of measurements?
Precision
Accuracy
Faulty technology
Unambiguity
What is accuracy?
The degree of closeness of measurements of a quantity to its actual value
The degree to which repeated measurements under unchanged conditions show the same results
What is precision?
The degree of closeness of measurements of a quantity to its actual value
The degree to which repeated measurements under unchanged conditions show the same results
Matter is defined as anything that occupies space and possesses the attributes of gravity and inertia
True
False
Matter has 5 states
True
False
Matter has 4 states?
True
False
Characterized by resistance to any change in shape, caused by a strong attraction between the molecules of which it is composed
Solid
Liquid
Gas
Plasma
Does not resist forces that act to change its shape, because the molecules are free to move with respect to each other
Solid
Liquid
Gas
Plasma
State of matter in which molecules are widely dispersed and freely move. It offers no resistance to change of shape and little resistance to change in volume
Solid
Liquid
Gas
Plasma
Consisting of an overall charge-neutral mix of electrons, ions, and neutral atoms
Solid
Liquid
Gas
Plasma
A gas that is not confined tends to diffuse infinitely, increasing in volume and diminishing in density
True
False
A gas that is not confined tends to diffuse infinitely, decreasing in volume and increasing in density
True
False
Which is solid
Which is liquid
Which is gas
Which is plasma
From what order of the states of matter does energy increase?
Solid -> liquid -> gas -> plasma
Solid <- liquid <- gas <- plasma
Solid -> plasma -> gas -> liquid
Solid <- plasma <- gas <- liquid
MOST substances are solid at low temperatures, liquid at medium temperatures, and gaseous in high temperatures, but the states are not always distinct
True
False
Temperature at which any given substance changes from solid to liquid and vice versa
Melting point
Boiling point
Dew point
Freezing point
Temperature at which it changes from liquid to gas and vice versa
Melting point
Boiling point
Dew point
Freezing point
Temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid
Melting point
Boiling point
Dew point
Freezing point
The boiling point of a liquid is dependent on atmospheric pressure
True
False
The boiling point of a liquid isn’t dependent on atmospheric pressure
True
False
The boiling point becomes lower as the external pressure is reduced
True
False
The boiling point becomes lower as the external pressure is increased
True
False
What is a physical change?
Change in matter that involved no chemical reaction
Change in matter where the chemical composition of each molecule changes
What is a chemical change?
Change in matter that involved no chemical reaction
Change in matter where the chemical composition of each molecule changes
Melting is what kind of change?
Physical change
Chemical change
Evaporating is what kind of change?
Physical change
Chemical change
Freezing is what kind of change?
Physical change
Chemical change
Rusting is what kind of change?
Physical change
Chemical change
Burning is what kind of change?
Physical change
Chemical change
What do you consider in a controlled set-up?
Site
Climate
Technology
Budget
Socioeconomics
Which state of matter has the greatest random molecular motion?
Solid
Liquid
Gas
Plasma
Dissolving salt in water is what kind of change?
Physical change
Chemical change
Color change is one of the conditions of chemical change
true
false
Formation of a precipitate is a condition of chemical change
true
false
Formation of a gas is one of the conditions of chemical change
true
false
Odor change is one of the conditions of chemical change
true
false
Temperature change is one of the conditions of chemical change
true
false
Viscosity change is one of the conditions of chemical change
true
false
Machines are devices that can do the following
multiply force and speed/distance
change the direction of force
transfer energy
transform energy
produce energy
Mechanical devices that only have one or two parts each
simple machines
compound/complex machines
Mechanical devices that make use of two or more simple machines
simple machines
compound/complex machines
Machines can multiply force
true
false
Machines can multiply speed/distance
true
false
Machines can change the direction of force
true
false
Machines can change the direction of speed
true
false
Machines can transform energy from one form to another
true
false
Machines can produce energy
true
false
An inclined plane is a simple machine
true
false
A lever is a simple machine
true
false
A screw is a simple machine
true
false
A wheel and axle is a simple machine
true
false
A pulley is a simple machine
true
false
A wedge is a simple machine
true
false
What is the formula for density?
p = volumemass
p = massvolume
p = volume × mass
p = volume × massvolume
How can the density of solids be measured?
weighed for mass, immersed in water to determine volume
weighing an empty container & container with liquid for mass, measuring instruments for volume
airtight containers for volume and weight (with consideration to temperature and pressure)
How can the density of liquids be measured?
weighed for mass, immersed in water to determine volume
weighing an empty container & container with liquid for mass, measuring instruments for volume
airtight containers for volume and weight (with consideration to temperature and pressure)
How can the density of gases be measured?
weighed for mass, immersed in water to determine volume
weighing an empty container & container with liquid for mass, measuring instruments for volume
airtight containers for volume and weight (with consideration to temperature and pressure)
Climate is the long-term effect of the sun's radiation on the rotating earth's varied surface and atmosphere
true
false
Climate is a state of the atmosphere at a particular time and place
true
false
Weather is a state of the atmosphere at a particular time and place
true
false
Climate is commonly defined as the weather averaged over a long period of time
true
false
What is temperature?
a measure of the degree of hotness of the air
a measure of the amount of water vapor in the air
the horizontal movement of air
the force of the air on a given surface divided by the area of that surface
What is the instrument usually used to measure temperature?
thermometer
hygrometer
psychrometer
rain gauge
anemometers
What is humidity?
a measure of the degree of hotness of the air
a measure of the amount of water vapor in the air
the horizontal movement of air
the force of the air on a given surface divided by the area of that surface
Relative humidity is the most common measure of humidity
true
false
Absolute humidity is the most common measure of humidity
true
false
Relative humidity is the amount of vapor in the air divided by the air's vapor-holding capacity at that temperature
true
false
Absolute humidity is the amount of vapor in the air divided by the air's vapor-holding capacity at that temperature
true
false
Absolute humidity is the actual amount of vapor in the air
true
false
If the amount of water vapor in the air remains the same, the relative humidity decreases as the air is heated and increases as the air is cooled
true
false
What is the instrument usually used to measure humidity?
thermometer
hygrometer
psychrometer
rain gauge
anemometers
What is the instrument usually used to measure precipitation?
thermometer
hygrometer
psychrometer
rain gauge
anemometers
What is wind?
a measure of the degree of hotness of the air
a measure of the amount of water vapor in the air
the horizontal movement of air
the force of the air on a given surface divided by the area of that surface
What is the instrument usually used to measure wind speed?
barometer
hygrometer
psychrometer
rain gauge
anemometers
Wind vanes are used to determine wind direction
true
false
Wind vanes are used to measure wind speed
true
false
What is pressure?
a measure of the degree of hotness of the air
a measure of the amount of water vapor in the air
the horizontal movement of air
the force of the air on a given surface divided by the area of that surface
In most weather systems, the air pressure is equal to the weight of the air column divided by the area of the column
true
false
What is the instrument usually used to measure pressure?
barometer
hygrometer
psychrometer
rain gauge
anemometers
Clouds are excess water vapor in the air that condenses into liquid droplets or ice crystals
true
false
Most clouds and almost all precipitation are produced by the cooling of air as it rises
true
false
What is a fluffy cumulus cloud
formed from rising masses of air, called thermals
formed high in the troposphere and their crystals never reach the ground
formed when an entire layer of air cools or ascends obliquely
What are fibrous cirrus clouds
formed from rising masses of air, called thermals
formed high in the troposphere and their crystals never reach the ground
formed when an entire layer of air cools or ascends obliquely
What are stratus clouds
formed from rising masses of air, called thermals
formed high in the troposphere and their crystals never reach the ground
formed when an entire layer of air cools or ascends obliquely
What is a fluffy cumulus cloud
often has a flat base, corresponding to the level at which the water vapor first condenses
consists of trails of falling ice crystals twisted by the winds
can extend for miles
What are fibrous cirrus clouds
often has a flat base, corresponding to the level at which the water vapor first condenses
consists of trails of falling ice crystals twisted by the winds
can extend for miles
What are stratus clouds clouds
often has a flat base, corresponding to the level at which the water vapor first condenses
consists of trails of falling ice crystals twisted by the winds
can extend for miles
what type of cloud is this?
cumulus cloud
cirrus cloud
stratus cloud
what type of cloud is this?
cumulus cloud
cirrus cloud
stratus cloud
what type of cloud is this?
cumulus cloud
cirrus cloud
stratus cloud
if a cumulus cloud grows large, it transforms into what?
cumulonimbus cloud
thunderstorm
rainfall
nimbus cloud
Water is a universal solvent
true
false
Water is chemically indestructible
true
false
What is water's freezing point?
0 C
100 C
50 C
What is water's boiling point?
0 C
100 C
50 C
Why is water blue?
molecular scattering of the sunlight
the seafloor is blue
the reflection of color on water
water is naturally blue
What is number 1?
Hint: process by which a liquid turns into gas
evaporation
transpiration
sublimation
deposition
precipitation
What is number 2?
Hint: produced when the droplets and crystals in clouds grow large enough to fall to the ground
evaporation
transpiration
sublimation
deposition
precipitation
What is number 3?
Hint: the process where water vapor becomes liquid
condensation
transpiration
sublimation
deposition
precipitation
What is number 4?
Hint: the conversion of a substance from the solid to the gaseous state without its becoming liquid
condensation
transpiration
sublimation
deposition
precipitation
What is number 5?
Hint: the process of water movement through a plant and its evaporation from aerial parts
condensation
transpiration
sublimation
deposition
precipitation
What is number 6?
Hint: when water vapor changes directly into ice
condensation
transpiration
sublimation
deposition
precipitation
What is number 7?
transportation
runoff
percolation
infiltration
groundwater
What is number 8?
Hint: movement of water over the surface of land
transportation
runoff
percolation
infiltration
groundwater
What is number 9?
Hint: happens when water soaks into the soil from the ground level
plant uptake
runoff
percolation
infiltration
groundwater
What is number 10?
Hint: the movement of water through the soil itself
plant uptake
runoff
percolation
infiltration
groundwater
What is number 11?
Hint: water taken from groundwater flow and soil moisture
plant uptake
runoff
percolation
infiltration
groundwater
What is number 12?
Hint: water that flow underground
plant uptake
runoff
percolation
infiltration
groundwater
Condensation happens through the following ways
air is cooled to its dew point
air becomes saturated with water vapor
air reaches its freezing point
air loses water vapor
What are the stages of the water cycle
storage
evaporation
precipitation
runoff
collection
