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Worksheetsphysical science test 1
Total questions: 68
Worksheet time: 36mins
What is a system of knowledge and the methods used to find that knowledge?
science
measurement
curiosity
technology
How are science and technology related?
Technology is a branch of natural science.
Science is a branch of technology.
Advances in science may lead to advances in technology and vice versa.
Science and technology are not related.
Which of the following is NOT a branch of natural science?
life science
Earth and space science
physical science
social science
How does Earth science overlap with life science?
Earth science involves the study of Earth’s rocks.
Earth science involves the study of systems that may include living organisms.
Earth science involves the study of the composition of matter.
Earth science does not overlap with life science.
Which of the following is NOT one of the main ideas of physical science?
The universe is very old and very large.
Forces cause changes in motion.
Energy can be transferred from one form to another, but it can never be destroyed.
One of the main branches of natural science is biology.
What are the building blocks of all matter?
atoms
forces
magnetic fields
kinetic and potential energy
In which step of the scientific method is information obtained through the senses?
drawing conclusions
analyzing data
making observations
revising a hypothesis
What happens when the data in an investigation do not support the original hypothesis?
The scientist gives up and starts an investigation on a new topic.
The data must be incorrect and are thrown out.
The hypothesis is revised.
The data are altered so that they support the original hypothesis.
What is a statement that summarizes a pattern found in nature?
a scientific law
a fact
a scientific theory
a hypothesis
Which of the following statements is true about scientific theories?
Scientific theories become scientific laws.
Scientific theories are never proven.
Scientific theories become hypotheses.
Scientific theories summarize patterns found in nature.
What is a physical or mental representation of an object or an event?
a theory
a model
a scientific law
a hypothesis
Why are scientific models important?
They prove scientific theories.
They help visualize things that are very complex, very large, or very small.
They make it harder to understand things.
They never change.
What is the most important safety rule?
Never work with chemicals.
Always use unbreakable glassware.
Always follow your teacher’s instructions and textbook directions exactly.
Never do experiments that involve flames or hot objects.
Which of the following is an example of a safe laboratory procedure?
tying back long hair and loose clothing
eating or drinking from laboratory glassware
touching hot objects with your bare hands
testing an odor by directly inhaling the vapor
How is .00069 written in scientific notation?
69 x 10^-5
6.9 x 10^4
.69 x 10^-3
6.9 x 10^-4
Timers at a swim meet used four different clocks to time an event. Which recorded time is the most precise?
55 s
55.25 s
55.2 s
55.254 s
Which of the following conversion factors would you use to change 18 kilometers to meters?
1000 m/1 km
10 km/1000 m
100 m/1 km
1 km/100 m
Which of the following clocks offers the most precision?
a clock with only one hand to measure the hour
a clock with only one hand to measure the minutes
a clock with a hand to measure the hour and a hand to measure the minutes
a clock with a hand to measure the hour, a hand to measure the minutes, and a hand to measure the seconds
On the Celsius scale, at what temperature does water boil?
0°
100°
212°
32°
The type of graph used to show how a part of something relates to the whole is which of the following?
circle graph
bar graph
line graph
direct proportion
What is the relationship in which the ratio of the manipulated variable and the responding variable is constant?
inverse proportion
direct proportion
slope
interdependent
How do scientists communicate the results of investigations?
by publishing articles in scientific journals
by giving talks at scientific conferences
by exchanging e-mails
all of the above
How do scientists who speak different languages make their data understandable to one another?
They all use different systems of measurement.
They all use SI.
They communicate through a universal translator.
They all must speak French.
What is a peer review?
a process in which only close friends of a scientist review the scientist’s work
a process in which scientists examine other scientists’ work
a process in which scientists copy other scientists’ work
a process in which scientists keep their work secret
Why are peer reviews important?
Scientists receive questions and criticism from their peers.
Data are checked for accuracy.
Scientists receive comments and suggestions from other scientists.
All of the above
If the relationship between the manipulated variable and the responding variable is a direct proportion, what will a line graph of this relationship look like?
a straight line
a curved line
a jagged line
none of the above
Which of the following are pure substances?
solutions
homogeneous mixtures
colloids
compounds
Which of the following is NOT a pure substance?
water
milk
oxygen
carbon dioxide
A substance that is made up of only one kind of atom is a(an)
compound.
homogeneous mixture.
element.
solution.
If an unknown substance CANNOT be broken down into simpler substances, it is
a compound.
made of one kind of atom.
an element.
both b and c
What is the symbol for aluminum ?
Al
AL
al
Au
If a material contains three elements joined in a fixed proportion, it is a(an)
mixture.
atom.
compound.
solution.
Water is a compound because it
can be broken down into simpler substances.
always has two hydrogen atoms for each oxygen atom.
is made of water atoms joined together.
both a and b
Which of the following is a mixture?
carbon dioxide
silicon dioxide
sand
silicon
Which of the following is a characteristic of a mixture?
has varying properties
has a fixed composition
contains only pure substances
both a and b
Which of the following is a heterogeneous mixture?
water in a swimming pool
sugar water
a jar of mixed nuts
stainless steel
A mixture can be classified as a solution, suspension, or colloid based on the
number of particles it contains.
size of its largest particles.
color of its particles.
size of its smallest particles.
You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” The soy milk is most likely a
solution.
pure substance.
colloid.
suspension.
Which of the following is malleable?
glass
ice
pottery
gold
Which of the following has the highest viscosity?
corn syrup
orange juice
milk
water
A substance has a melting point of 0ºC and a boiling point of 100ºC. The substance is most likely
hydrogen dioxide
water
gold.
table salt.
A material that is malleable and conducts electricity is most likely
wood.
a metal.
ice.
motor oil.
What physical properties of nylon and leather make them good materials to use for shoelaces?
high density and low conductivity
durability and flexibility
hardness and durability
low viscosity and flexibility
Which of the following materials is useful for making molds because it has a low melting point?
clay
metal
wax
wood
Nothing
Filtration can be used to separate mixtures based on
their boiling points.
their densities.
their melting points.
the size of their particles.
What method can be used to separate parts of a liquid mixture when the entire mixture can pass through a filter?
filtration
straining
distillation
screening
When a physical change in a sample occurs, which of the following does NOT change?
shape
composition
temperature
volume
Which of the following is a physical change?
sawing a piece of wood in half
burning a piece of wood
rust forming on an iron fence
a copper roof changing color from red to green
Flammability is a material’s ability to burn in the presence of
hydrogen.
nitrogen
oxygen.
carbon dioxide.
A substance that has high reactivity
easily combines chemically with other substances.
burns in the presence of water.
displaces dissolved oxygen.
has a high boiling point.
Which of the following is NOT a clue that a chemical change has occurred?
change in color
formation of a precipitate
production of a gas
change in shape
During which of the following chemical changes does a precipitate form?
vinegar is added to baking powder
lemon juice is added to water
a banana ripens
lemon juice is added to milk
Which of the following is a chemical change?
ice melting
ice being carved
water boiling
water breaking down into hydrogen and oxygen
Which of the following is a clue of a chemical change?
iron changes color when heated
gas bubbles form in boiling water
balls of wax form when melted wax is poured into ice water
a gas forms when vinegar and baking soda are mixed
1001
in scientific notation?
If the exponent is a negative number...
