How are science and technology related?

Advances in science lead to advance in technology vice versa

Which of the following clocks offers the most precision?

a clock that measures time to the nearest tenth of a second.

vaporization that occurs only at the surface of a liquid

relationship between pressure, volume, and temp of gas

Why are scientific models important?

Help visualize thing that are complex, very large/very small

pressure is inversely proportional to volume

Looks the same from every part you look

What allows a mixture to be separated by filtration?

Small particles pass through a filter but larger ones do not

Which of the following is true about scientific theories?

Scientific theories are never proven.

A chemical reaction that requires an input of energy

Which of the following is an example of a safe laboratory procedure?

tying back long hair and loose clothing.

How is a gas able to fill a container of any size or shape?

Gases are in constant motion due to kinetic theory.

Which of the following is NOT one of the main ideas of physical science?

One of the main branches of natural science is biology

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Physical Science Fall 2019 Final Review

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Questions 100

Answers

1
How are science and technology related?
Science and technology are not related.
Science is a branch of technology.
Technology is a branch of natural science.
Advances in science lead to advance in technology vice versa
2
A substance that has little tendency to change into other substances is said to have low
reacitvity
viscosity
conductivity
density
3
Which of the following clocks offers the most precision?
a clock that measures time to the nearest minute.
a clock that measures time to the nearest second.
a clock that measures time to the nearest hour.
a clock that measures time to the nearest tenth of a second.
4
Hydrogen gas is stored at 275K and 3.0atm. What is the pressure at 375K? Volume is constant.
4.09atm
34,000atm
2.2atm
.45atm
5
What is Deposition?
gas to solid
solid to gas
gas to plasma
liquid to solid
6
What is evaporation?
vaporization that occurs only at the surface of a liquid
I don't know
change to a solid
the formation of a vapor
7
A(An) ___ is a way of plotting data to show changes that occur in related variables.
pie graph
bar graph
line graph
circle graph
8
Timers at a swim meet used 4 different clocks to time an event. Which time is the most precise?
55 s
55.2 s
55.0 s
55.25 s
9
Endothermic, Exothermic or neither?
Neither
Endothermic
Exothermic
10
If a sealed bottle of gas at 2atm is heated from 100K to 400K, what will the new pressure be?
1atm
8atm
Not enough information
4atm
11
What is the temperature at which water freezes, expressed in Fahrenheit, Celsius, & kelvins?
32o F, 0oK, 273o C
32o K, 0o C, 273o F
32o F, 0o C, 273o K
32o C, 0oF, 273o K
12
What is a statement that summarizes a pattern found in nature?
a scientific theory
a scientific law
a hypothesis
a fact
13
combined gas law?
relationship between pressure, volume, and temp of gas
gas combining
i dont know
yes
14
Why are scientific models important?
They never change.
They make it harder to understand things.
They prove scientific theories.
Help visualize thing that are complex, very large/very small
15
Endothermic, Exothermic or neither?
Neither
Exothermic
Endothermic
16
What is a system of knowledge and the methods used to find that knowledge?
Science
Technology
curiosity
measurement
17
What gas law is this?
Ideal gas law
Gay- Avogadro's law
combined gas law
Charles Boyle's Law
18
Boyles Law
pressure is inversely proportional to volume
P=V/2
pressure is proportional to volume
pressure is unaffected by volume
19
Formation of a precipitate is usually evidence of ___________
a chemical change
gas being relased
a physical change
formation of a solution
20
Why are peer reviews important?
Data is checked for accuracy
all of the above
Scientists receive comment/suggestions from other scientists
Scientists receives questions and criticism from their peers
21
The SI base unit of mass is the
pounds
ounces
gram
kilogram
22
A pure substance...
Looks the same from every part you look
Looks different from every part you look
23
What phase change does D represent?
What?
Plasmatronic reaction
Evaporation/Condensation
Solid
24
There is no difference between vaporization, evaporation, and boiling.
False
True
25
What allows a mixture to be separated by filtration?
Different boiling points, one boils first
Small particles pass through a filter but larger ones do not
Liquids are absorbed and the solids are left behind
The liquids evaporate leaving behind the solids
26
Which of the following is true about scientific theories?
Scientific theories become scientific laws.
Scientific theories are never proven.
Scientific theories summarize patterns found in nature.
Scientific theories become hypothesis
27
malleability
Chemical Change
Chemical Property
Physical Property
Physical Change
28
Ok... then whats Charles' Law?
V1/T1=V2/T2
I DONT KNOW
P1/T1=P2/T2
V1/P1=V2/P2
29
Approximately how many kelvins are equal to 60 degrees Fahrenheit?
212
902
289
439
30
Which action involves a chemical change?
cutting wrapping paper
making ice cubes
baking a cake
adding sugar to tea
31
Tap water is ___.
a mixture
an element
a substance
a compound
32
On the Celsius scale, at what temperature does water boil?
32 degrees
0 degrees
100 degrees
212 degrees
33
1660 megawatts of wind generated electricity produced globally each year. This is equivalent to
16,600,000 watts
166,000 kilowatts
1,660,000 watts
1,660,000 kilowatts
34
Boyles Law
d=M/v
r2d2
P1V1=P2V2
P1V1T2=P2V2T1
35
How does sublimation occur?
Temperature Increases
Temperature Decreases
36
In which step of the scientific method is information obtained through the senses?
revising a hypothesis
making observations
analyzing data
drawing conclusions
37
A(An) ____ is a statement that summarizes a pattern found in nature.
hypothesis
scientific theory
scientific law
Scientific method
38
The measurement 0.014 seconds equals ______ milliseconds.
140
14
0.14
1.4
39
Endothermic reaction
A chemical reaction that requires an input of Matter
A chemical reaction that requires an input of conservation
A chemical reaction that requires an input of energy
A chemical reaction that requires an input of heat
40
What is the Combined Gas Law?
P1V1/T1 = P2V2/T2
P1V1 = P2V2
P1/T1 = P2/T2
V1/T1 = V2/T2
41
A measurement must include both a number and a(n) ______
decimal
unit
precision
none of the above
42
Natural science is divided into life science, Earth and space science, and ____
chemistry
biology
physics
physical science
43
Which of the following is an example of a safe laboratory procedure?
tying back long hair and loose clothing.
touching hot objects with your bare hands.
eating or drinking from laboratory glass wear.
testing an odor by directly inhaling the vapor.
44
Which of the following conversion factors would you use to change 18 kilometers to meters?
1000 m/1 km
1 km/100 m
1 km/1000 m
100 m/1 km
45
Endothermic or exothermic?
Exothermic
Endothermic
46
What phase change is this?
Deposition
Melting
Ionization
Boiling
47
Adding more particles of gas to a closed fixed container will ___________ the pressure.
increase
eliminate
decrease
not affect
48
An experiment where only 1 variable, the manipulated variable, is changed at a time is called a(n)
controlled experiment
all of them
independent variable
dependent variable
49
What are the building blocks of all matter?
magnetic fields
forces
kinetic and potential energy
atoms
50
How is a gas able to fill a container of any size or shape?
The kinetic theory says that gases are very dense.
Gases are not in motion.
Gases are in constant motion due to kinetic theory.
Gases aren't real.
51
Which of the following is NOT one of the main ideas of physical science?
One of the main branches of natural science is biology
Forces cause changes in motion
Energy transfer from 1 form to another but cant be destroyed
The universe is very old and very large.
52
A__makes it easier to understand things that are to small, to large, or to hard to observe directly
scientific model
scientific theory
Scientific evidence
scientific law
53
Formation of a precipitate is usually evidence of:
a physical change
the formation of a mixture
a chemical change
the separation of a mixture
54
2X manipulated variable result in 2X responding variable the relationship between the variables
doubling proportion
direct proportion
indirect proportion
proportion
55
What does a line graph look like when a manipulated & responding variable have direct proportion
a straight line
a jagged line
a curved line
none of the above
56
Which of the following will cause a decrease in gas pressure in a closed container?
raising the temperature
lowering the temperature
reducing the volume
adding more gas
57
The type of graph used to show how a part of something relates to the whole is a
bar graph
direct proportion
circle graph
line graph
58
What is the relationship between two variables if the product of the variables is constant?
an unequal proportion
healthy portions
a direct proportion
an inverse proportion
59
Why does gas pressure increase when volume decreases?
The particles speed up and hit the walls with more force
None of these
It doesn't
Because they are directly related
60
What is the difference between an element and a compound?
They are the same.
A compound is made up of atoms from different elements .
A compound is made up of elements .
A compound can't be made but an element can.
61
Which state of matter has a definite shape and a definite volume?
gas
plasma
liquid
solid
62
When a homemade oil and vinegar salad dressing is left standing, it separates? Why?
It is a suspension.
It is a compound.
It is a solution.
It is a colloid.
63
At room temperature, a substance with a melting point of 40°C is a
liquid
solid
gas
mixture
64
What is peer review?
process where close friends of a scientist review their work
process in which scientist copy other scientist work.
process in which scientists examine other scientist work.
process in which scientist keep their work secret
65
The ____ is the variable that changes in response to the manipulated variable.
responding variable
controlled variable
manipulated variable
the mixed variable
66
An organized plan for gathering, organizing, and communicating information is called a(an)
critical thinking
scientific method
Plan A
scientific thinking
67
When gas is heated in a closed container, pressure increases. Why?
The potential energy of the gas increases.
The kinetic energy of the gas decreases.
The kinetic energy of the gas increases.
The potential energy of the gas remains constant.
68
What does the kinetic theory say about the motion of atoms?
Gases are only in motion.
Particles are in constant motion.
Atoms are sometimes moving.
Liquids and solids are always in motion.
69
Which of these substances is NOT an element?
iron
water
hydrogen
aluminum
70
If the volume of a syringe of gas is reduced, what happens to the pressure inside the syringe?
the pressure would not change
the pressure will increase
the pressure depends on the type of gas
the pressure will decrease
71
What type of graph would be best to use to compare the levels of lead contamination in 6 water wells?
A bar graph
A line graph
A pie graph
A circle graph
72
Relationship in which the ratio of the manipulated variable & responding variable is constant
inverse proportion
interdependent
slope
direct proportion
73
What is deposition
Solid turning to gas
Gas turning to solid
Liquid turning to gas
Neither
74
How do scientists who speak different languages make their data understandable to one another.
They communicate through a universal translator.
They all must speak French
They all use SI
They all use different systems of measurement.
75
How does Earth science overlap with life science?
Earth science involves the study of Earth's rocks.
Earth science involves the study of compositions of matter.
Earth science does not overlap with life science.
Earth science studies systems that include living things
76
When a gas is heated in a closed container the internal pressure:
Decrease
Increase
No change
Increase then Decrease
77
what is phase change?
when matter transitions between solid, liquid, and gas
just when matter transitions
when electrons chase protons
when two substances make a new substance
78
How do scientists communicate the results of investigations?
all of the above
by exchanging emails
by publishing articles in scientific journals
by giving talks at scientific conferences
79
____is the closeness of a measurement to the actual value being measured.
length
temperature
precision
accuracy
80
During a phase change the temperature
both
stays the same
changes
81
Charles law states that
constant temp means volume stays the same
constant pressure = volume proportional to temp
constant pressure = temp inversely proportional to volume
constant temp= volume inversely proportional to pressure
82
Endothermic
Energy (heat) flows out of the system into the surroundings
Energy (heat) flows from the surroundings into the system
83
Which of the following is equal to 1 centimeter?
100 meters
10 millimeters
100 millimeters
1/10 of a millimeter
84
What happens when the data in an investigation do not support the original hypothesis?
The data must be incorrect and thrown out.
Data is altered so that they support the original hypothesis
Scientist gives up & starts an investigation on a new topic.
The hypothesis will be revised.
85
What is a physical or mental representation of an object or event?
a hypothesis
a theory
a scientific law
a model
86
What gas law is this?
Avogadro's law
Boyle's Law
Chalres law
Gay- Lussac's law
87
How many significant figures will the answer to the calculation 65.25 X 37.4 have?
5
6
3
4
88
Which material is a poor conductor of heat?
wood
silver
iron
copper
89
Computers are an example of ___ that helps people solve problems.
engineering
cheating on homework
science
technology
90
What phase change is this?
Deposition
Boiling
Melting
Sublimation
91
A material that can be hit without shattering is
Hard
Flammable
Malleable
Viscous
92
Which of the following is not a branch of natural science?
physical science
life science
social science
Earth and space science
93
Which statement describes a difference between solids, liquids, and gases?
Solids have a definite volume, and liquids do not have a definite volume.
Temperatures can change a solid to a liquid, but not a liquid to a solid.
Solids take on the shape of their containers, and liquids keep their shape
The particles in a solid are much closer together than particles in a gas.
94
Which of the following is not an example of a physical property?
density
hardness
melting point
flammability
95
What happens to the number in a measurement that is converted from kilometers to meters?
you can't convert kilometers to meters
It gets smaller
it stays the same
it gets larger
96
When a closed container of a gas is heated, its pressure increases because
the number of molecules increases
the molecules become heavier
the molecules move faster and strike the sides more often
the molecules become larger
97
The 2 main areas of physical science are physics and
Earth Science
Life Science
Chemistry
Physics
98
A pure substance...
Has a VARIABLE composition
Has a PERMANENT composition
99
The three values 10.714 m, 12.821 m, & 13.646 m have the same number of
none of these
scientific notation
distance in kelvin
Significant figures
100
The three factors that affect pressure are....
temperature, volume, pressure
force, pressure, volume
temperature, volume, number of particles
particles, energy, weight

Physical Science Fall 2019 Final Review Flashcards | StudBud