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WorksheetsPhysical Science Semester 2 Final Review
Total questions: 85
Worksheet time: 43mins
Name
Class
Date
1.
A pure substance containing only one kind of atom is a(n) ___________.
a)
element
b)
compound
c)
mixture
d)
solution
2.
Two or more compounds or elements not chemically combined is a(n) _____________.
a)
atom
b)
compound
c)
mixture
d)
element
3.
In a(n) ___________, two or more atoms are chemically combined
a)
atom
b)
compound
c)
mixture
d)
solution
4.
Substances that look the same throughout are ____________.
a)
homogeneous
b)
heterogeneous
c)
compounds
d)
mixtures
5.
Substances that look different throughout are ____________.
a)
homogeneous
b)
heterogeneous
c)
compounds
d)
mixtures
6.
Bohr models represent __________.
a)
names
of rows on the periodic table
b)
atomic
mass of the element
c)
the
number of valence electrons in an atom
d)
the
total number of electrons in an atom
7.
Lewis dot structures represent __________.
a)
names of rows on the periodic table
b)
atomic mass of the element
c)
the number of valence electrons in an atom
d)
the total number of electrons in an atom
8.
Protons are located ___.
a)
around
the outside of the nucleus; “orbiting”
b)
within
the neutrons
c)
within
the nucleus
d)
within the protons
9.
Neutrons are located ___.
a)
around the outside of the nucleus; “orbiting”
b)
within the neutrons
c)
within the nucleus
d)
within the protons
10.
Electrons are located ___.
a)
around the outside of the nucleus; “orbiting”
b)
within the neutrons
c)
within the nucleus
d)
within the protons
11.
Lithium, potassium, & francium are all __________.
a)
alkaline
earth metals
b)
halogens
c)
alkali
metals
d)
noble
gases
12.
Iodine, bromine, & astatine are all ________.
a)
alkaline earth metals
b)
halogens
c)
alkali metals
d)
noble gases
13.
Radon, neon, and xenon are all __________.
a)
alkaline earth metals
b)
halogens
c)
alkali metals
d)
noble gases
14.
All atoms strive to have ____ electrons in their outer ring. This is called _______.
a)
8;
the octet rule
b)
8;
electron configuration
c)
6;
electron configuration
d)
6;
rule of 9
15.
_______ interact when atoms bond.
a)
Electrons
in the inner shell
b)
All
electrons
c)
Valence
electrons
d)
No
electrons
16.
When atoms lose electrons they become _______; when atoms gain electrons they become ______.
a)
negative;
negative
b)
positive;
positive
c)
positive;
negative
d)
negative;
positive
17.
Atoms that have lost or gained electrons are _________.
a)
ions
b)
isotopes
c)
valance elements
d)
noble gases
18.
Which of these subatomic particles are smallest?
a)
proton
b)
neutrons
c)
electrons
d)
quarks
19.
Which of these subatomic particles are largest?
a)
proton
b)
neutrons
c)
electrons
d)
quarks
20.
Which two subatomic particles are about the same size?
a)
proton & electron
b)
neutrons & protons
c)
electrons & neutrons
d)
quarks & protons
21.
Which of these elements is LEAST reactive?
a)
halogens
b)
alkali
metals
c)
alkaline
earth metals
d)
noble
gases
22.
Which of these elements is MOST reactive?
a)
halogens
b)
alkali metals
c)
alkaline earth metals
d)
noble gases
23.
The electron configuration for the “p” orbital is _____.
a)
2
b)
6
c)
10
d)
14
24.
The electron configuration for the “s” orbital is _____.
a)
2
b)
6
c)
10
d)
14
25.
If an element has an atomic number of 50, an atomic mass of 119, and has 50 protons & electrons, that element is _______.
a)
Sn
(tin)
b)
Sb
(antimony)
c)
V
(vanadium)
d)
Ge
(germanium)
26.
If an element has an atomic number of 19, how many protons does that element have?
a)
19
b)
20
c)
39
d)
38
27.
If an element has an atomic number of 19, how many electrons does that element have?
a)
19
b)
20
c)
39
d)
38
28.
If an element has an atomic number of 19 and a mass number of 39, how many neutrons does that element have?
a)
19
b)
20
c)
39
d)
38
29.
If an element has an atomic number of 19, what is that element’s name?
a)
calcium
b)
sodium
c)
magnesium
d)
potassium
30.
Li + Cl -> LiCl
Which atom is taking electrons in this equation?
Which atom is taking electrons in this equation?
a)
Li
b)
Cl
31.
Li + Cl -> LiCl
Which atom is giving away electrons in this equation?
Which atom is giving away electrons in this equation?
a)
Li
b)
Cl
32.
Li + Cl -> LiCl
What ions are formed during this equation?
What ions are formed during this equation?
a)
Li-, Cl-2
b)
Li-2, Cl-
c)
Li+, Cl+
d)
Li+, Cl-
33.
Li + Cl -> LiCl
What kind of bond is present?
What kind of bond is present?
a)
ionic
b)
covalent
c)
metallic
d)
noble gas bonding
34.
Balance this:
_P4+_O2 ---> _P2O3
_P4+_O2 ---> _P2O3
a)
3 P4+1 O2 ---> 2 P2O3
b)
1 P4+1 O2 ---> 2 P2O3
c)
1 P4+ 3 O2 ---> 2 P2O3
d)
1 P4+ 2 O2 ---> 3 P2O3
35.
Balance this:
_AgNO3 + _Cu ---> _Cu(NO3)2 + _Ag
_AgNO3 + _Cu ---> _Cu(NO3)2 + _Ag
a)
2 AgNO3 + 2 Cu ---> 3 Cu(NO3)2 + 1 Ag
b)
2 AgNO3 + 1 Cu ---> 1 Cu(NO3)2 + 2 Ag
c)
1 AgNO3 + 2 Cu ---> 2 Cu(NO3)2 + 1 Ag
d)
3 AgNO3 +
2 Cu ---> 3 Cu(NO3)2 + 2 Ag
36.
Balance this:
_Al + _HCl ---> _H2 + _AlCl3
_Al + _HCl ---> _H2 + _AlCl3
a)
2 Al + 2 HCl ---> 2 H2 + 6 AlCl3
b)
3 Al + 3 HCl ---> 6 H2 + 2 AlCl3
c)
1 Al + 1 HCl ---> 3 H2 + 1 AlCl3
d)
2 Al + 6 HCl ---> 3 H2 + 2 AlCl3
37.
Balance this:
_Na3PO4 + _CaCl2 --->_NaCl + _Ca3(PO4)2
_Na3PO4 + _CaCl2 --->_NaCl + _Ca3(PO4)2
a)
2 Na3PO4 + 3 CaCl2 ---> 6 NaCl + 1 Ca3(PO4)2
b)
6 Na3PO4 + 1 CaCl2 ---> 6 NaCl + 1 Ca3(PO4)2
c)
1 Na3PO4 + 1 CaCl2 ---> 2 NaCl + 3 Ca3(PO4)2
d)
2 Na3PO4 + 3 CaCl2 ---> 1 NaCl + 2 Ca3(PO4)2
38.
Balance this:
_N2 + _F2 --->_NF3
_N2 + _F2 --->_NF3
a)
1 N2 +
3 F2 ---> 2 NF3
b)
3 N2 + 2 F2 ---> 1 NF3
c)
4 N2 + 2 F2 ---> 0 NF3
d)
3 N2 + 4 F2 ---> 5 NF3
39.
What kind of reaction?
__ NaBr + __ H3PO4 --> __ Na3PO4 + __ HBr
__ NaBr + __ H3PO4 --> __ Na3PO4 + __ HBr
a)
combustion
b)
decomposition
c)
synthesis
d)
double replacement
40.
What kind of reaction?
_K + _Cl2 --->_KCl
_K + _Cl2 --->_KCl
a)
decomposition
b)
synthesis
c)
double replacement
d)
single replacement
41.
What kind of reaction?
__ PbSO4 --> __ PbSO3 + __ O2
__ PbSO4 --> __ PbSO3 + __ O2
a)
combustion
b)
decomposition
c)
synthesis
d)
double replacement
42.
What kind of reaction?
_CH4 + _O2 --->_CO2 + _H2O
_CH4 + _O2 --->_CO2 + _H2O
a)
combustion
b)
decomposition
c)
synthesis
d)
double replacement
43.
What kind of reaction?
_NaF + _Br2 ---> _NaBr + _F2
_NaF + _Br2 ---> _NaBr + _F2
a)
decomposition
b)
synthesis
c)
double replacement
d)
single replacement
44.
AgNO3
a)
covalent; silver nitrite
b)
covalent; silver nitrate
c)
ionic; silver nitrite
d)
ionic; silver nitrate
45.
N2O5
a)
covalent; dinitrogen pentoxide
b)
covalent; nitrogen oxide
c)
ionic; dinitrogen pentoxide
d)
ionic; nitrogen oxide
46.
CCl4
a)
covalent; calcium chloride
b)
covalent; calcium tetrachloride
c)
ionic; calcium chloride
d)
ionic; calcium tetrachloride
47.
SrF2
a)
covalent; strontium fluoride
b)
covalent; strontium difluoride
c)
ionic; strontium fluoride
d)
ionic; strontium difluoride
48.
KMnO4
a)
covalent; potassium permanganate
b)
covalent; potassium magnesium tetroxide
c)
ionic; potassium permanganate
d)
ionic; potassium magnesium tetroxide
49.
The substances that we begin with at the start of a chemical reaction are the ________.
a)
products
b)
reactants
c)
substances
d)
yeilds
50.
The substances that we end up with at the end of a chemical reaction are the ________.
a)
products
b)
reactants
c)
substances
d)
yeilds
51.
The large number in front of a chemical formula or compound is the ___________.
a)
coefficient
b)
subscript
c)
superscript
d)
product
52.
In every balanced chemical equation, each side of the equation has the same number of ____.
a)
coefficient
b)
moles
c)
molecules
d)
atoms of each element
53.
The ______ cannot be changed in order to balance an equation.
a)
coefficents
b)
subscripts
c)
superscripts
d)
both B & C
54.
Velocity is a _________ because it contains a _______; speed is a ________.
a)
scalar; direction; vector
b)
velocity; direction; scalar
c)
unit of distance; acceleration; scalar
d)
vector; acceleration; vector
55.
How long would it take to travel 50 km traveling at a speed of 10 km/hr?
a)
3 hrs
b)
1 hr
c)
0.5 hrs
d)
5 hrs
56.
If a car starts from rest and speeds up to 50 m/s in 4 s, what is the acceleration of the car?
a)
200 m
b)
200 m/s
c)
12.5 m/s
d)
12.5 m
/ s2
57.
Which of these is NOT an acceleration?
a)
Change of direction
b)
Increase in velocity
c)
Speed
d)
Instantaneous stopping
58.
If a car is going 100 m/s and slows down to 50 m/s in 20 s, what is the rate of acceleration?
a)
-2.5 m / s2
b)
25 m / s2
c)
50 m / s2
d)
-5 m / s2
59.
A bicycle speed changes from 3.5 m/s to 6.5 m/s in 6 s. What is the bicycle's acceleration?
a)
1.2m/s2
b)
0.8 m/s2
c)
0.5m/s2
d)
1.5 m/s2
60.
What do we call point A?
a)
starting line
b)
ending point
c)
origin
d)
beginning
61.
The object is moving away from the origin ________.
a)
between point A & point B
b)
between point C & point D
c)
between point D & point E
d)
answer A & answer B
62.
What is happening between point B & point C?
a)
The object is traveling at a constant speed
b)
The object is stopped
c)
The object has a positive acceleration
d)
The object has a negative acceleration
63.
What is happening between point E & point F?
a)
The object is traveling back toward the origin
b)
The object is accelerating at a constant speed
c)
The object is moving backward
d)
The object is coming to a stop
64.
What is the object’s speed after 170 seconds?
a)
1.55 m/s
b)
0.88 m/s
c)
110 m
d)
110 m/s
65.
This graph is showing ______.
a)
velocity
b)
speed
c)
time
d)
acceleration
66.
What is happening between point A & point B?
a)
The object is traveling at a constant speed with
no acceleration
b)
The object is stopped
c)
The object is changing direction
d)
The object is slowing down
67.
What is happening between point B & point C?
a)
The object is speeding up (positive acceleration)
b)
The object is slowing down (negative
acceleration)
c)
The object is traveling south
d)
The object is turning to the left
68.
What is the object’s acceleration between point C & point D?
a)
14 m/s2
b)
0 m/s
c)
0 m/s2
d)
14 s
69.
What is the object’s acceleration between 10 s & 12 s?
a)
-0.5 m/s2
b)
0.5 m/s2
c)
-72 m/s2
d)
72 m/s2
70.
The ratio of the force produced by a machine to the force applied to a machine is __________.
a)
mechanical advantage
b)
momentum
c)
impulse
d)
simple machines
71.
The lever, pulley, wheel & axle, wedge, screw, and inclined plane are __________.
a)
inventions
b)
simple machines
c)
scientific objects
d)
tools
72.
A machine that does a simple task in a complicated way is a ____________.
a)
simple machine
b)
pulley
c)
lever
d)
Rube Goldberg machine
73.
You’re riding fast on a skateboard when your wheel gets stuck in a crack in the sidewalk. Why does your body go flying?
a)
there is a net force pushing you off the
skateboard
b)
there is no gravity
c)
your inertia keeps you moving forward
d)
someone (a ghost?!) pushed you
74.
You collected a huge bag of leaves in your yard, and you need to move it out to the curb. How could you get the bag to move faster?
a)
use more force (push harder)
b)
take some leaves out of the bag (reduce the
mass)
c)
both A & B would work
d)
neither A nor B would work
75.
According to Newton’s 3rd law of motion, when a hammer strikes and exerts a force on a nail, the nail ________.
a)
only creates friction
b)
disappears into the wood
c)
exerts an equal force back on the hammer
d)
moves at a constant speed
76.
What is the acceleration of a box being pushed on a ramp if its mass is 15 kg and it requires 22 N of force to move it?
a)
1.47 m/s2
b)
0.68 m/s2
c)
330 m/s2
d)
7 m/s2
77.
How much force is required to accelerate a 2 kg mass at 3 m/s2?
a)
1.5 N
b)
0.67 N
c)
6
d)
6 N
78.
Given a force of 83 N and an acceleration of 4 m/s2, what is the mass of the object?
a)
332 N
b)
20.75 kg
c)
20.75 N
d)
20.75 m/s2
79.
A push or pull on an object when that object interacts with something else is _____.
a)
mass
b)
acceleration
c)
velocity
d)
force
80.
a)
element
b)
compound
c)
mixture of elements
d)
mixtures of compounds
81.
a)
element
b)
compound
c)
mixture of elements
d)
mixtures of compounds
82.
a)
element
b)
compound
c)
mixture of elements
d)
mixtures of compounds
83.
a)
element
b)
compound
c)
mixture
d)
mixtures of compounds & elements
84.
a)
element
b)
compound
c)
mixture of compounds
d)
mixtures of compounds & elements
85.
a)
compound
b)
mixture
c)
element
d)
other
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