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PS - Final Exam Review (2019)

Total questions: 169

Worksheet time: 42hrs 15mins

Name
Class
Date
1.
Protons are located ___.
a)
around the outside of the nucleus; “orbiting”
b)
within the neutrons
c)
within the nucleus
d)
within the protons
2.
Neutrons are located ___.
a)
around the outside of the nucleus; “orbiting”
b)
within the neutrons
c)
within the nucleus
d)
within the protons
3.
Electrons are located ___.
a)
around the outside of the nucleus; “orbiting”
b)
within the neutrons
c)
within the nucleus
d)
within the protons
4.
Lithium, potassium, & francium are all __________.
a)
alkaline earth metals
b)
halogens
c)
alkali metals
d)
noble gases
5.
Iodine, bromine, & astatine are all ________.
a)
alkaline earth metals
b)
halogens
c)
alkali metals
d)
noble gases
6.
Radon, neon, and xenon are all __________.
a)
alkaline earth metals
b)
halogens
c)
alkali metals
d)
noble gases
7.
_______ interact when atoms bond.
a)
Electrons in the inner shell
b)
All electrons
c)
Valence electrons
d)
No electrons
8.
When atoms lose electrons they become _______; when atoms gain electrons they become ______.
a)
negative; negative
b)
positive; positive
c)
positive; negative
d)
negative; positive
9.
Atoms that have lost or gained electrons are _________.
a)
ions
b)
isotopes
c)
valance elements
d)
noble gases
10.
Which two subatomic particles are about the same size?
a)
proton & electron
b)
neutrons & protons
c)
electrons & neutrons
d)
quarks & protons
11.
Which of these elements is LEAST reactive?
a)
halogens
b)
alkali metals
c)
alkaline earth metals
d)
noble gases
12.
Which of these elements is MOST reactive?
a)
halogens
b)
alkali metals
c)
alkaline earth metals
d)
noble gases
13.
If an element has an atomic number of 19, how many protons does that element have?
a)
19
b)
20
c)
39
d)
38
14.
If an element has an atomic number of 19, how many electrons does that element have?
a)
19
b)
20
c)
39
d)
38
15.
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
16.
If an element has an atomic number of 19, what is that element’s name?
a)
calcium
b)
sodium
c)
magnesium
d)
potassium
17.

Li + Cl → LiCl

What ions are formed during this equation?

a)

Li­­-, Cl-2

b)

Li-2, Cl-

c)

Li+, Cl+

d)

Li+, Cl-

18.

Li + Cl → LiCl

What kind of bond is present?

a)

ionic

b)

covalent

c)

metallic

d)

noble gas bonding

19.

Balance this:

P4 + _O2 → _P2O3

a)

3P4 + O2 → 2P2O3

b)

P4 + O2 → 2P2O3

c)

P4 + 3O2 → 2P2O3

d)

P4 + 2O2 → 3P2O3

20.

Balance this:

_ AgNO3 + Cu → Cu(NO3)2 + _ Ag

a)

2 AgNO3 + 2 Cu → 3 Cu(NO3)2 + Ag

b)

2 AgNO3 + Cu → Cu(NO3)2 + 2 Ag

c)

AgNO3 + 2 Cu → 2 Cu(NO3)2 + Ag

d)

3 AgNO3 + 2 Cu → 3 Cu(NO3)2 + 2 Ag

21.

Balance this:

_Al + _HCl → _H2 + _AlCl3

a)

2 Al + 2 HCl → 2 H2 + 6 AlCl3

b)

3 Al + 3 HCl → 6 H2 + 2 AlCl3

c)

Al + HCl → 3 H2 + AlCl3

d)

2 Al + 6 HCl → 3 H2 + 2 AlCl3

22.

Balance this:

_Na3PO4 + _CaCl2 →_NaCl + Ca3(PO4)2­

a)

2 Na3PO4 + 3 CaCl2 → 6 NaCl + Ca3(PO4)2

b)

6 Na3PO4 + CaCl2 → 6 NaCl + Ca3(PO4)2

c)

Na3PO4 + CaCl2 → 2 NaCl + 3 Ca3(PO4)2

d)

2 Na3PO4 + 3 CaCl2 → NaCl + 2 Ca3(PO4)2

23.

Balance this:

N2 + _F2 → _NF3

a)

N2 + 3 F2 → 2 NF3

b)

3 N2 + 2 F2 → NF3

c)

4 N2 + 2 F2 → NF3

d)

3 N2 + 4 F2 → 5 NF3

24.

What kind of reaction?

NaBr + H3PO4 → Na­3PO4 + HBr

a)

combustion

b)

decomposition

c)

synthesis

d)

double replacement

25.

What kind of reaction?

K + Cl2 → KCl

a)

decomposition

b)

synthesis

c)

double replacement

d)

single replacement

26.

What kind of reaction?

PbSO4 → PbSO3 + O2

a)

combustion

b)

decomposition

c)

synthesis

d)

double replacement

27.

What kind of reaction?

NaF + Br2 → NaBr + F2

a)

decomposition

b)

synthesis

c)

double replacement

d)

single replacement

28.
The substances that we end up with at the end of a chemical reaction are the ________.
a)
products
b)
reactants
c)
substances
d)
yeilds
29.
The large number in front of a chemical formula or compound is the ___________.
a)
coefficient
b)
subscript
c)
superscript
d)
product
30.
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
31.

The ______ cannot be changed in order to balance an equation.

a)

coefficents

b)

subscripts

c)

superscripts

d)

subscripts & superscripts

32.

If a car is going 100 m/s and slows down to 50 m/s in 20 s, what is the rate of acceleration? (Remember your significant figure rules!)

a)

-2.5 m/s2

b)

25 m/s2

c)

50 m/s2

d)

-5 m/s2

e)

-3 m/s2

33.

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

e)

-0.5 m/s2

34.

The object is moving away from the starting position (A) between ________.

a)

point A & point B

b)

point C & point D

c)

point D & point E

d)

point E & point F

e)

point B & point C

35.

What is happening between point B & point C?

a)

The object is traveling at a constant speed

b)

The object is at rest

c)

The object has a positive acceleration

d)

The object has a negative acceleration

36.

What is happening between point E & point F?

a)

The object is traveling back toward the starting point at a constant speed

b)

The object is accelerating at a constant speed

c)

The object is moving backward

d)

The object is at rest

37.

What is the object’s speed after 170 seconds? (Remember your significant figure rules!)

a)

1.55 m/s

b)

0.88 m/s

c)

0.9 m/s

d)

110 m/s

e)

1.1 m/s

38.
This graph is showing ______.
a)
velocity
b)
speed
c)
time
d)
acceleration
39.

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

40.
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
41.
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
42.

What is the object’s acceleration between 10 s & 12 s?

a)

-3 m/s2

b)

3 m/s2

c)

-72 m/s2

d)

72 m/s2

43.

The lever, pulley, wheel & axle, wedge, screw, and inclined plane are __________.

a)

forces

b)

simple machines

c)

scientific objects

d)

compound machines

44.
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
45.

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)

(A) use more force (push harder)

b)

(B) take some leaves out of the bag (reduce the mass)

c)

both A & B would make the bag move faster

d)

neither A nor B would make the bag move faster

46.
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
47.

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? (Remember your significant figure rules)

a)

1.47 m/s2

b)

0.68 m/s2

c)

330 m/s2

d)

7 m/s2

e)

1.5 m/s2

48.
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
49.

Given a force of 83 N and an acceleration of 4.0 m/s2, what is the mass of the object? (Remember your significant figure rules)

a)

332 N

b)

20.75 kg

c)

20.75 N

d)

20.75 m/s2

e)

21 kg

50.
A push or pull on an object when that object interacts with something else is _____.
a)
mass
b)
acceleration
c)
velocity
d)
force
51.
a)
element
b)
compound
c)
mixture of elements
d)
mixtures of compounds
52.
a)
element
b)
compound
c)
mixture of elements
d)
mixtures of compounds
53.
a)
element
b)
compound
c)
mixture of elements
d)
mixtures of compounds
54.
a)
element
b)
compound
c)
mixture 
d)
mixtures of compounds & elements
55.
a)
element
b)
compound
c)
mixture of compounds
d)
mixtures of compounds & elements
56.
a)
compound
b)
mixture
c)
element
d)
other
57.
Two or more compounds or elements not chemically combined is a(n) _____________.
a)
atom
b)
compound
c)
mixture
d)
element
58.
In a(n) ___________, two or more atoms are chemically combined
a)
atom
b)
compound
c)
mixture
d)
solution
59.
Substances that look the same throughout are ____________.
a)
homogeneous
b)
heterogeneous
c)
compounds
d)
mixtures
60.
Substances that look different throughout are ____________.
a)
homogeneous
b)
heterogeneous
c)
compounds
d)
mixtures
61.
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
62.
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)
63.

CCl4

a)

covalent; calcium chloride

b)

covalent; carbon tetrachloride

c)

ionic; calcium chloride

d)

ionic; carbon tetrachloride

64.
N2O5
a)
covalent; dinitrogen pentoxide
b)
covalent; nitrogen oxide
c)
ionic; dinitrogen pentoxide
d)
ionic; nitrogen oxide
65.

SrF2

a)

covalent; strontium fluoride

b)

covalent; strontium difluoride

c)

ionic; strontium fluoride

d)

ionic; strontium difluoride

66.
K2S
a)
covalent; potassium sulfide
b)
covalent; potassium sulfur
c)
ionic; potassium sulfide
d)
ionic; dipotassium monosulfide
67.
The substances that we begin with at the start of a chemical reaction are the ________.
a)
products
b)
reactants
c)
substances
d)
yeilds
68.
A pure substance containing only one kind of atom is a(n) ___________.
a)
element
b)
compound
c)
mixture
d)
solution
69.

How long would it take to travel 50 km traveling at a speed of 10 km/h?

a)

3 hours

b)

1 hour

c)

0.5 hour

d)

5 hours

70.

If a car starts from rest and speeds up to 50.0 m/s in 4.0 s, what is the acceleration of the car?

a)

200 m

b)

200 m/s

c)

12.5 m/s

d)

13 m/s2

71.

Which of these is NOT an acceleration?

a)

Change of direction

b)

Increase in velocity

c)

Speed

d)

Decreasing velocity

72.

How many significant figures?

1,403,000

a)

7

b)

6

c)

3

d)

4

73.

How many significant figures?

0.000500

a)

7

b)

6

c)

3

d)

4

74.

How many significant figures?

20.00

a)

1

b)

2

c)

3

d)

4

75.

How many significant figures?

13.75

a)

1

b)

2

c)

3

d)

4

76.

1.5 x 106

a)

1,500,000

b)

0.000 001 5

c)

9

d)

15,000

77.

5.6 x 10-4

a)

0.000 56

b)

0.56

c)

56,000

d)

-22.4

78.

0.000 923 4

a)

9.234 x 10-4

b)

9.2 x 104

c)

0.9234 x 10-3

d)

92.34 x 10-5

79.

56,780,000

a)

5.678 x 107

b)

56.78 x 106

c)

0.5678 x 10-7

d)

5,678

80.

rusting

a)

physical property

b)

chemical change

c)

physical change

81.

melting

a)

chemical change

b)

chemical property

c)

physical change

82.
Evaporation refers to the change of state from a
a)
solid to a liquid.
b)
gas to a liquid.
c)
liquid to a gas.
d)
liquid to a solid.
83.
The ____ is the distance between two crests of a wave.
a)
amplitude
b)
wavelength
c)
frequency
d)
pitch
84.
You put 1 spoonful of salt into 1 liter of water and stir.  The resulting liquid is an example of a(n)
a)
homogeneous mixture.
b)
heterogeneous mixture.
c)
element.
d)
pure substance.
85.
All of the following will make it easier to dissolve a solute in a solvent except
a)
adding a larger amount of solute.
b)
increasing the surface area of the solute.
c)
heating the solvent.
d)
stirring the solution.
86.
The sample contained the same number of pennies for which two years?
a)
1988 and 1992
b)
1988 and 1990
c)
1994 and 1998
d)
1994 and 1997
87.
Temperature is a measure of the average ____ energy of the particles in the object.
a)
potential
b)
kinetic
c)
thermal
d)
chemical
88.
Determine the measurement on the instrument above.
a)
722.9
b)
722 g
c)
720.29 g
d)
722.90 g
89.
As a dropped penny falls toward the ground, _____ energy is converted to _____ energy.
a)
kinetic, vibrational
b)
potential, kinetic
c)
kinetic, heat
d)
thermal, potential
90.
When objects are moved further apart from each other, the force of gravity between them
a)
decreases at first then increases.
b)
decreases.
c)
stays the same.
d)
increases.
91.

The label on a bottle indicates that the substance inside has a pH of 3. This tell you that the substance is

a)

mildly basic.

b)

neutral.

c)

strongly acidic.

d)

strongly basic.

92.
During fission, some of the nuclear mass is converted into
a)
critical mass.
b)
protons.
c)
energy.
d)
heavier nuclei.
93.

In an experiment testing the effect of the amount of sunlight on plant growth, the amount of sunlight is the

a)

theory.

b)

dependent variable.

c)

constant.

d)

independent variable.

94.

A pitcher throws a baseball to home plate, a distance of 60.5 ft. The ball reaches home plate in 0.63 s. What is the velocity of the ball?

a)

38.11 ft/s

b)

38 ft/s toward home plate

c)

96.03 ft/s

d)

96 ft/s toward home plate

e)

38 m/s

95.

A gold atom has a mass number of 197. Its atomic number is 79. How many neutrons does the iron atom have?

a)

82

b)

79

c)

118

d)

196.97

96.
The change of a substance from a solid directly to a gas is called
a)
melting.
b)
evaporation.
c)
sublimation.
d)
condensation.
97.
On a distance vs. time graph, the line of an object at rest is a
a)
curved line with a positive slope.
b)
curved line with a slope of zero.
c)
jagged line with a negative slope.
d)
flat line with a slope of zero.
98.
Two different isotopes of an element have different
a)
numbers of neutrons.
b)
numbers of electrons.
c)
atomic numbers.
d)
numbers of protons.
99.
The transfer of energy to a body by the application of a force that causes the body to move in the direction of the force is called
a)
work.
b)
distance.
c)
power.
d)
mechanical advantage.
100.
The force with which gravity pulls on a quantity of matter is referred to as
a)
length.
b)
weight.
c)
volume.
d)
mass.
101.
The average speed of a runner who runs 500.0 m in 1.6 s is
a)
5.2 m/s.
b)
0.19 m/s.
c)
96 m/s.
d)
313 m/s.
102.
Which question cannot be answered by an experiment?
a)
Does penicillin kill Salmonella bacteria?
b)
Is rabies caused by a virus?
c)
Can radiation cause cancer?
d)
Did a comet impact kill the dinosaurs?
103.
Which type of electromagnetic waves has the highest energy?
a)
gamma rays
b)
ultraviolet light
c)
infrared
d)
microwaves
104.
An ionic compound of calcium and chlorine would be named
a)
calcium chlorite.
b)
calcium chloride.
c)
calcium chlorine.
d)
chlorine calcium.
105.
The substance that is formed in a chemical reaction is called the
a)
product.
b)
radical.
c)
polymer.
d)
reactant.
106.
Which unit is used to measure the mass of a computer?
a)
mole
b)
meter
c)
kilogram
d)
Kelvin
107.
Which of the following is a compound?
a)
soup
b)
air
c)
salt
d)
paint
108.
An echo is caused by the _____ of a sound wave.
a)
refraction
b)
interference
c)
relfection
d)
diffraction
109.
Speeding up, slowing down, and changing direction is best described as
a)
acceleration.
b)
displacement.
c)
velocity.
d)
distance.
110.
A subatomic particle that has a negative charge is called a(n)
a)
electron.
b)
molecule.
c)
proton.
d)
neutron.
111.
Covalent bonds are formed between
a)
ions.
b)
compounds.
c)
nonmetal atoms.
d)
metal atoms.
112.
If the net force acting on a stationary object is zero, then the object will
a)
begin moving backwards.
b)
remain at rest.
c)
decelerate at a steady rate of speed.
d)
accelerate in the direction of the strongest force.
113.
Appliances connected so that they form a single pathway for charges to flow are connected in a(n)
a)
open circuit.
b)
closed circuit.
c)
parallel circuit.
d)
series circuit.
114.
The kinetic theory states that the higher the temperature, the faster the
a)
particles that make up a substance move.
b)
molecules of gas rush together.
c)
bonds between atoms break down.
d)
lighter particles within a substance clump together.
115.
Which of the following will result in the greatest acceleration?
a)
56 N acting on a 2 kg box
b)
56 N acting on a 1 kg box
c)
23 N acting on a 2 kg box
d)
23 N acting on 5 kg box
116.
The chemical formula for water, H2O, means that each water molecule contains
a)
two hydrogen atoms and zero oxygen atoms.
b)
two hydrogen atoms and one oxygen atoms.
c)
one hydrogen atoms and two oxygen atoms.
d)
two hydrogen atoms and two oxygen atoms.
117.
Which state of matter will hold its shape without a container?
a)
liquid
b)
solid
c)
gas
d)
plasma
118.
Atoms of elements that are in the same group have the same number of
a)
neutrons.
b)
protons.
c)
protons and neutrons.
d)
valence electrons.
119.
A compound is always different from a mixture because it
a)
is formed from two cations.
b)
is held together by chemical bonds.
c)
always remains frozen even at high temperatures.
d)
can form only in the presence of heat energy
120.

What is the density of a sample of liquid that has a volume of 125 mL and a mass of 200 g?

a)

0.625 g/mL

b)

1.6 g

c)

2 g/mL

d)

0.625 mL

121.

A car moving at an average speed of 65.0 mi/h for 4.25 h has traveled

a)

276.25 meters.

b)

0.07 mile.

c)

14 meters.

d)

276 miles.

122.
A scientist wants to add a particular volume of sulfuric acid to his experiment.  Which of the following would be the best measuring instrument to use?
a)
beaker
b)
graduated cylinder
c)
balance
d)
goggles
123.
Water waves
a)
are not mechanical waves.
b)
transport water but not energy.
c)
transport energy and water.
d)
transport energy but not water.
124.

Moving from 0 m/s to 25 m/s in 8.0 s equals an average acceleration of _____.

a)

-3.1 m/s

b)

3.1 m/s2

c)

-0.32 m/s2

d)

0.32 m/s

125.
A chemical property of copper is its
a)
density.
b)
reactivity.
c)
color.
d)
melting point.
126.
Which statement about action-reaction force pairs is incorrect?
a)
They are equal and opposite.
b)
They always occur in pairs.
c)
They occur at the same time.
d)
They act on the same object.
127.
Waves are often caused by
a)
mechanical energy.
b)
colliding objects.
c)
vibrating objects.
d)
potential energy.
128.

According to the graph above, how long does it take this car to travel 180 kilometers?

a)

4 hours

b)

10 hours

c)

6 hours

d)

45 hours

129.
The speed of a sound wave
a)
depends on wavelength.
b)
depends on the medium.
c)
depends on amplitude.
d)
None of the above.
130.
The resistance of an insulator is
a)
very low.
b)
absent.
c)
moderate.
d)
very high.
131.
Waves travel quickly in a _____ because the molecules are closely packed and physically bonded together.
a)
liquid
b)
gas
c)
solid
d)
None of the above.
132.
Which of the following equations is properly balanced?
a)
K3N + 3HCl --> 3KCl + 3H3N
b)
KI + Cl2 --> 2KCl + I2
c)
C2H6 + 2O2 --> 2CO2 + 3H2O
d)
CH4 + 2O2 --> CO2 + 2H2O
133.

A resistor has a resistance of 280 Ω. How much current is in the resistor if there is a potential difference of 60.0 V across the resistor?

a)

168 A

b)

4.6 A

c)

0.21 A

d)

170 A

134.
If a transverse wave is moving from right to left, the individual particles in the medium are moving
a)
right to left.
b)
left to right.
c)
up and down.
d)
None of the above.
135.
Calculate the wave speed for a wave with a wavelength of 2 m and a frequency of 0.3 Hz.
a)
2.3 m/s
b)
0.6 m/s
c)
1.67 m/s
d)
0.15 m/s
136.
Which of the following is an example of technological design?
a)
Searching for clues to the environmental conditions that existed when water was present on Mars.
b)
Determining the contaminants in a village's water supply.
c)
Researching the effects of exposure to gamma radiation.
d)
Developing a new method for water treatment.
137.
Which of the following causes a chemical change?
a)
burning
b)
melting
c)
moving
d)
shattering
138.
An ionic bond is a bond that forms between
a)
the electrons of two different atoms.
b)
atoms with neutral charges.
c)
ions with opposite charges.
d)
one atom's nucleus and another atom's electrons.
139.
Generators convert
a)
chemical energy to electrical energy.
b)
electrical energy to chemical energy.
c)
electrical energy to mechanical energy.
d)
mechanical energy to electrical energy.
140.
Often atoms join so that each atom will have
a)
more electrons than either protons or neutrons.
b)
an even number of electrons.
c)
an equal number of protons and electrons.
d)
an outermost energy level that is full of electrons.
141.
The difference between speed and velocity is that velocity includes
a)
time.
b)
weight.
c)
direction.
d)
distance.
142.
Maria is 123 centimeters tall.  Her height in meters is
a)
0.0123 m.
b)
1.23 m.
c)
0.123 m.
d)
12.3 m.
143.
All of the following factors may speed up a chemical reaction except
a)
higher temperature.
b)
presence of a catalyst.
c)
smaller surface area.
d)
higher pressure.
144.
Which of the following is an advantage of nuclear energy as a power source?
a)
Waste can be destroyed anywhere.
b)
Nuclear waste is not radioactive.
c)
Nuclear energy does not produce air pollution.
d)
Nuclear power plants are low in cost.
145.
The rate at which charges move through a conductor is called
a)
electrical potential.
b)
resistance.
c)
voltage.
d)
current.
146.
In which type of bond do atoms share electrons?
a)
polyatomic bonds
b)
ionic bonds
c)
metallic bonds
d)
covalent bonds
147.
Scientist test a hypothesis by
a)
drawing conclusions.
b)
formulating questions.
c)
doing experiments.
d)
designing models.
148.
How should you hold a test tube containing a chemical?
a)
held to your nose
b)
pointed away from your face
c)
held up to your partner's face
d)
above your head
149.
Positive charges _____ one another.
a)
join
b)
cancel
c)
repel
d)
attract
150.
Which of the following elements will form an ion with a 1- charge?
a)
lithium
b)
nitrogen
c)
oxygen
d)
bromine
151.
A person standing still and listening to a siren sounding an alarm.  The frequency of the sound is 500 Hz.  The person begins running toward the sound at a rate of 20 m/s.  The frequency of the sound the person hears will
a)
change by 20Hz.
b)
increase.
c)
remain the same.
d)
decrease.
152.
A boy pushes on a parked car with a force of 200 N.  The car does not move.  How much work does the boy do on the car?
a)
200 N
b)
Not enough information to answer the question.
c)
200 J
d)
zero
153.
Which of the following is not a potential sign of chemical change?
a)
burning
b)
change in color
c)
fizzing
d)
boiling
154.
The strength of a magnetic field created by current in a wire can be increased by
a)
decreasing the current in the wire.
b)
wrapping the wire into a coil.
c)
using a shorter wire.
d)
using longer wire.
155.
At the top of its arc, a thrown ball has ____ potential energy.
a)
minimum
b)
zero
c)
maximum
d)
average
156.
Atoms sometimes form bonds to
a)
give away protons.
b)
become more stable.
c)
give away neutrons.
d)
lose energy.
157.
Chemical energy is energy that is
a)
added to a reaction in the form of heat.
b)
released only when oxygen is present.
c)
stored in the form of chemical bonds.
d)
caused by the movement of electricity.
158.
Atoms have no electrical charge because they
a)
have neutrons in their nuclei.
b)
have an equal number of neutrons and protons.
c)
have an equal number of electrons and protons.
d)
have an equal number of charged and non-charged particles.
159.
Carbon and other nonmetals are found in which area of the periodic table?
a)
on the right side
b)
in the middle column of the periodic table
c)
in the bottom rows
d)
on the left-most side
160.
Which graph best shows a change in data over time?
a)
line graph
b)
bar graph
c)
pie chart
d)
all of the above
161.
Which of the following occurs in an endothermic reaction but not in an exothermic reaction?
a)
Molecules are formed.
b)
Atoms are rearranged.
c)
Chemical bonds are broken.
d)
Energy is absorbed.
162.
Record the measurement.
a)
144.80 g
b)
144.80 cm
c)
144.80 kg
d)
148.0 g
163.
Record the measurement.
a)
51.4 g
b)
50.40 g
c)
154.4 g
d)
54 g
164.
Record the measurement.
a)
3.60 cm
b)
3.60 in
c)
3.60 m
d)
6.0 cm
165.
Record the measurement.
a)
24 m
b)
20.4 cm
c)
20.4 m
d)
24.0 cm
166.
Record the measurement.
a)
33.0 mL
b)
30.1 mL
c)
36 mL
d)
30.6 mL
167.
Record the measurement.
a)
39.30 mL
b)
42.0 mL
c)
39.6 mL
d)
39.30 cm
168.
Record the measurement.
a)
49.45 mL
b)
49.5 mL
c)
49.44 mL
d)
49.5 mL
169.
Record the measurement.
a)
10.6 mL
b)
13 mL
c)
10.3 mL
d)
16.0 mL

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