stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Pre Ap Physical Science Flashcards | StudBud
Explore
/
Pre Ap Physical Science
In a polar covalent bond,
What is the unit for pressure?
Pre Ap Physical Science
105 terms
·
StudBud Administration
·
117 plays
Final
Flashcards
105 cards
F
Practice quiz
P
Host live
L
Questions
105
Answers
1
What is the unit for pressure?
Weight
Pounds
Kilopascal
Ounces
2
In a polar covalent bond,
A cation is bonded to an anion
Electrons are shared equally between atoms
Electrons are not shared equally between atoms
Electrons are transferred between atoms
3
What change occurs when a material changes shape or size but not composition?
Physical change
Shape change
Density change
Chemical change
4
Which of the following has the highest viscosity?
Milk
Orange juice
Corn syrup
Water
5
What is the result of a force over an area?
Mass
Temperature
Volume
Pressure
6
The formation of an ionic bond involves the _____.
Sharing of electrons
Transfer of neutrons
Transfer of protons
Transfer of electrons
7
J.J. Thomson‘s experiments provided evidence that an atom ______.
Has a positive charge
Is the smallest particle of matter
Has a negative charge
Contains negatively charged particles
8
Natural science is divided in life science, Earth and space, and ________.
Geometry
Physics
Physical science
Biology
9
Group 7A of the periodic table contains the ______.
Least reactive nonmetals
Most reactive metals
Least reactive metals
Most reactive nonmetals
10
The type of graph used to show how a part of something relates to the whole
Direct proportion
Bar graph
Circle graph
Line graph
11
What is a mixture that appears to contain only one substance?
Heterogeneous mixture
Homogeneous mixture
Element
Compound
12
To keep from reacting, some highly reactive elements are stored in ______.
Water
Oxygen
Helium
Argon
13
What is a material that is malleable and conducts electricity well?
Metal
Ice
Wood
Motor oil
14
What is the phase change in which a substance changes from a gas directly to a solid?
Sublimation
Condensation
Vaporation
Deposition
15
What method can be used to separate parts of a liquid when it can pass through a filter?
Straining
Distillation
Screening
Filtration
16
How do scientist who speak different languages make their data understandable to one another?
They all use SI
They all use different systems of measurement
They communicate through a universal translator
They all must speak French
17
What is the region in which an electron is most likely to be found?
Ion
Electron
Sodium
Orbital
18
Mendeleev arranged the know chemical elements in a table according to increasing ______.
Atomic number
Mass
Number of electrons
Number of protons
19
Collisions of helium atoms with the walls of a closed container cause ________.
Gas pressure
Condensation
An overall loss of energy
A decrease in volume
20
Which law states that the volume of a gas is directly proportional to its temp in kelvin?
Boyle’s law
Bose’s law
Charle’s law
Einstein’s law
21
If the particles in a mixture scatter light, the mixture is either a _______ or a ________.
Compound, mixture
Suspension, colloid
Elements, compound
Colloid, suspension
22
In which step of the scientific method is information obtained through the sences?
Make observations
Analyzing data
Draw conclusions
revising a hypothesis
23
What is the phase change that is the reverse of condesation?
Melting
Sublimation
Freezing
Vaporation
24
Which of the following is a chemical change?
Ice melting
Water boiling
Ice being carved
Water breaking down into hydrogen and oxygen
25
What are the two most reactive groups of elements?
All of the above
Noble gases, alkaline earth metals
Alkali metals, halogens
Halogens, alkali metals
26
Which of the following is not a clue that a chemical change has occurred?
Change in color
Production of a gas
Change in shape
Formation of a precipitate
27
What do scientists use to predict the locations of electrons in atoms?
Algebra
Probability
Ratios and probability
Geometry
28
What is the most important safety rule?
Never do experiments that involve flames or hot objects
Always use unbreakable glassware
Never work with chemicals
Always follow instructions and the textbook directions
29
If the volume of a container is reduced by half the pressure will increase by ______.
100%
75%
200%
50%
30
What is a tiny piece of matter that cannot be divided?
Atom
Molecules
Element
Electron
31
The formula for magnesium chloride is MgCl2. What must the charge on the chloride ion be?
1-
2-
2+
0
32
Which of the following most accurately represents John Dalton’s model of the atom?
A sphere that is hollow throughout
A tiny, solid sphere with an unpredictable mass
A hollow shere with a dense nucleus
A tiny, solid sphere with a predictable mass
33
Pure substances are either _____ or _____.
Colloid , suspension
Atoms,halogens
Compounds, elements
Elements, compounds
34
Ninety-nine percent of all the matter that can be observed in the universe exists as _______.
Plasmas
Solids
Liquids
Gases
35
Rust forms because iron is _____ _____ in the presence of oxygen and water.
All of the above
Barely reactive
Doesn’t react
Highly reactive
36
What is a system of knowledge and methods used to find that knowledge?
Measurement
Technology
Curiosity
Science
37
What happens when the data in an investigation do not support the original hypothesis?
The data must be incorrect and is thrown away
The scientist gives up and starts a new investigation
The data is altered to support the original hypothesis
The hypothesis is revised
38
What properties can only be observed when substances are changing into different substances?
Odor
Chemical
Physical
Color
39
Which of the following is a heterogeneous mixture?
Stainless steel
A jar of mixed nuts
Water in a swimming pool
Sugar water
40
What type of change occurs when water changes from a solid to a liquid.
A physical change
A phase change and a physical change
An irreversible change
A phase change
41
Which of the following is an example of a safe laboratory procedure?
Tying back long hair and a loose clothing
Testing an odor by directly and hailing
Eating or drinking from laboratory glassware
Touching hot objects with your bare hands
42
Ionization energies tend to _______.
Increases from left to right across a period
Increase from the top of a group to the bottom
Decreases from the bottom of a group to the top
Decrease from left to right across a period
43
Moving from left to right across a period, which of the following increases by exactly one?
Atomic mass unit
Mass #
Isotope #
Atomic #
44
Which of the following is not a pure substance?
Water
Milk
Carbon dioxide
Oxygen
45
What is a material that contains three elements joined in a fixed proportion?
Solution
Mixture
Atom
Compound
46
An element has a fixed composition because it comtains only one type of ______.
Element
Atom
Gases
Molecule
47
What substance changes it’s volume when when it moves containers?
Solution
Gas
Solid
Liquid
48
What is a type of bond that holds cations and anions togethe?
Ionic bond
Nonpolar bond
Anion
Polar bond
49
Forces of attraction limit the motion of particles most in _______?
A solid
A gas and a liquid
A gas
A liquid
50
A solid that forms and seperates from a liquid mixture is a _________.
Colloid
Metal
Element
Precipitate
51
A gas has
A definite shape but no definite volume
A definite volume and definite shape
A definite volume but no definite shape
No definite shape or definite volume
52
What is the SI base unit for temperature?
Celsius
Fahrenheit
Chili
Kelvin
53
Which of the following is not part of John Dalton’s atomic theor?
All elements are composed of atoms
A compound contains atoms of more than one element
All atoms of the same element have the same mass
Atoms contain subatomic particles
54
How is 0.00069 written in scientific notation?
0.69•10^-3
6.9•10^-4
6.9•10^4
69•10^-5
55
Flamability is a material‘s ability to burn in the presence of what?
Carbon dioxide
Hydrogen
Oxygen
Nitrogen
56
How are science and technology related?
Science and technology are not related
Advances in science lead to advances in technology 🔁
Science is a branch of technology
Technology is a branch of natural science
57
Which element is found in most of the compounds in your body except for water?
Iodine
Potassium
Carbon
Iron
58
During a phase change, the temperature of a substance _________.
Increases or decreases
Decreases
Does not change
Increases
59
Computers are an example of a _________ that help people solve problems.
Science
Technology
Technological
Physical
60
What is an unknown substance that cannot be broken down into simpler substances?
A compound
An element
Made of one kind of atom
An element
61
Which of the following sentences is true about scientific theories?
Scientific theories become hypotheses
Scientific theories summarize patterns found in nature
Scientific theories are never proven
Scientific theories become scientific laws
62
What are the two main areas of physical science?
Biology
Chemistry
Zoology
Physics
63
Which of the following will cause a decrease in gas pressure in a closed container?
Reducing the volume
Lowering the temperature
Adding more gas
Adding water
64
Measuring ______ can be used to test the purity of some substance.
Volume
Mass
Density
Weight
65
A __________ is a statement that summarizes a pattern found in nature.
Element
Scientific theory
Scientific law
Scientific question
66
Which of the following factors affects the pressure of an enclosed gas?
Temperature
Number of particles
Volume
All of the above
67
What is a statement that summarizes a pattern found in nature?
Fact
Scientific theory
Hypothesis
Scientific law
68
Which of the following statements about ice is true?
Water molecules move from their fixed position
Water molecules lose energy
Energy flows from the ice to its surroundings
The temperature of the ice increases as it melts
69
Who provided evidence for the existence of a nucleus in an atom?
John Dalton
J.J. Thomson
Democritus
Ernest Rutherford
70
Which of the following materials is useful for making molds because it has a low melting point?
Metal
Wood
Wax
Clay
71
A mixture can be classified as a solution, suspension, or colloid based on what?
Color of its particles
Size of it’s largest particles
Number of particles it contains
Size of it’s smallest particles
72
What is the phase change in which a substance changes from a solid to a liquid?
Sublimation
Condensation
Melting
Freezing
73
What is a physical or mental representation of an object of an event?
Theory
Scientific law
Model
Hypothesis
74
Which of the following is malleable?
Ice
Pottery
Gold
Glass
75
Typically, atoms gain and lose electrons to achieve ______.
A stable electron configuration
An exchange of energy
Ionization
Vaporation
76
How do scientists communicate the results of investigations?
All the above
By giving talks at scientific conferences
By publishing articles in scientific journals
I exchanging e-mails
77
Measurement must include both a number and a?
Word
Hashtag
Unit
$
78
During which phase change does the arrangement of water molecules become more orderly?
Melting
Freezing
Boiling
Condensing
79
Why are scientific models important?
They prove scientific theories
Help visualize things that are very large, or very small
They make it harder to understand things
They never change
80
The standard on which the atomic mass unit is based in the mass of a ______.
Chlorin-35 atom
Carbon-12 atom
Neutron
Proton
81
What is the heat of fusion?
The temperature that water evaporates
The temperature that water boils
The temperature that water melts
The temperature that water freezes
82
Which statement is NOT true about the elements fluorine (9), chlorine (17), and iodine (53)?
They are similar to noble gases
They are all halogens
They react easily with metals
They are all nonmetals
83
If the number of particles of gas is increase the pressure will _______.
Remain constant
Increase
Decrease
Cause a decrease in the kinetic energy of the particles
84
Raising the temperature of a gas will increase its pressure if the volume of the gas _______.
And the number of particles are increased
Is constant, but the number of particles is reduced
Is increased, but the number of particles is constant
And the number of particles are constant
85
Which element is found in nature only in compounds?
Helium
Oxygen
Sodium
Nitrogen
86
During an ______ change, a system absorbs energy from its surrounding.
Kinetic
Exothermic
Endothermic
Deposition
87
Which of the following is a pure substance?
Element
Colloid
Compound
Solution
88
What are the building blocks of all matter?
Atoms
Forces
Magnetic fields
Kinetic and potential energy
89
Water is a compound because it what?
Because you drink it
Can’t be broken down into simpler substances
Is made of water atoms joined together
Always has two hydrogen atom for each oxygen atom
90
Which of the following is unique for any given element?
The charge of the electrons
Mass of a neutron
# of protons
# of neutrons
91
Which of the following changes is an exothermic change?
Melting
Sublimation
Deposition
Vaporation
92
A type of bond in which two atoms share a pair of valence electrons is a ______.
Covalent bond
Ionic bond
Chemical bond
Metallic bond
93
Matter that has a definite volume but no definite shape is a _______.
Solid
Plasma
Gas
Liquid
94
What is the phase change in which a substance changes from a liquid to a gas?
Deposition
Condensation
Vaporation
Sublimation
95
Boyles law states that the volume of a gas is inversely proportional to its pressure if the ___
Number of particles decreases
Temperature reaches absolute zero
Temperature and number of particles are constant
Temperature and number of particles are doubled
96
Atoms of the most reactive elements tend to have what?
No valence electrons
Four or five valence electrons
Eight valence electrons
One or seven valence electrons
97
The pattern of repeating properties of elements revealed in the periodic table is known as ___.
Periodic law
Mendeleev’s law
Atomic law
Newton’s law
98
When two atoms of the same nonmetal react, they often form a ________.
Polyatomic bond
Diatomic bond
Ioni bond
Polar bond
99
What is a substance that is made one kind of atom?
Homogeneous mixture
Element
Solution
Compound
100
Which of the following phase changes is an endothermic change?
Condensation
Vaporation
Deposition
Freezing
101
Why are peer reviewes important?
Data is checked for accuracy
Scientists receive questions and criticism from their peers
Scientists receive comments and suggestions from others
All of the above
102
What is an organized plan for gathering organizing and communicating information called ?
Scientific law
Scientific method
Scientific theory
Chemistry
103
What is the state of matter that exists only at extremely low temperatures is called ______.
Bose-Einstein Condensate
Solid
Liquid
Plasma
104
What is the phase change in which a substance changes directly from a solid to a gas?
Melting
Sublimation
Vaporation
Deposition
105
What is a mixture of two or more elements, at least one of which is a metal?
Alloy
Polyatomic
Crystal
Molecule
