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WorksheetsPhy Sci EOC Review 9thgr 23-24
Total questions: 99
Worksheet time: 2hrs 29mins
Name
Class
Date
1.
When a firecracker explodes, chemical energy changes to light and sound energy. This is an example of how energy:
a)
Can be transformed as well as created or destroyed.
b)
Can be transformed but not created or destroyed.
c)
Cannot be transformed, created, or destroyed.
d)
Cannot be transformed and created, but can be destroyed.
2.
When a firecracker explodes, chemical energy changes to light and sound energy. This is an example of how energy:
a)
Can be transformed as well as created or destroyed.
b)
Can be transformed but not created or destroyed.
c)
Cannot be transformed, created, or destroyed.
d)
Cannot be transformed and created, but can be destroyed.
3.
In a chemical equation, you cannot have NEW elements in the product side of the equation. This is BEST described by the fact that matter:
a)
Can be created but not destroyed.
b)
Cannot be created or destroyed.
c)
Can be destroyed but not created.
d)
Can be both created and destroyed.
4.
The stored energy in a battery can BEST be described as:
a)
Thermal
b)
Nuclear
c)
Kinetic
d)
Chemical
5.
Which of the following could be used to convert wind energy to electrical energy?
a)
A chemical storage battery.
b)
A solar cell.
c)
A windmill.
d)
Rotating coils in a magnetic field.
6.
Which of the following is example of potential energy?
a)
Gasoline in a car.
b)
A rock at the top of a hill.
c)
A baseball bat held motionless in the ready position.
d)
All of these are examples of potential energy.
7.
An object at rest begins to move when:
a)
Balanced forces act on it.
b)
An unbalanced, or net force, acts on it.
c)
Forces are no longer acting on it.
d)
An object at rest stays at rest no matter what.
8.
A 200-kg student kicks a 2.5 kg ball with a force of 500 N. What force does the ball apply on the student?
a)
200 N
b)
1250 N
c)
300 N
d)
500 N
9.
Newton's 3rd Law states that:
a)
An object in motion will stay in motion unless acted on by an unbalanced force.
b)
For every action, there is an equal and opposite reaction.
c)
The acceleration of an object depends on the mass of the object and the force applied to it.
d)
Energy cannot be created or destroyed, only transferred.
10.
A metal spoon is used to stir a pot of boiling soup. The person holding the spoon feels the spoon get hot. Which BEST describes the transfer of heat in the spoon?
a)
Radiation
b)
Electrical
c)
Conduction
d)
Convection
11.
A car was sitting in sunlight all day long. The heat that is now contained in the car was transferred to the car PRIMARILY by which of the following processes?
a)
Convection
b)
Conduction
c)
Radiation
d)
Electrical energy transfer
12.
In a vacuum, X-rays and gamma rays have the same:
a)
Frequency
b)
Speed, which is the speed of sound
c)
Speed, which is the speed of light
d)
Energy
13.
What is the highest point of a transverse wave?
a)
Amplitude
b)
Crest
c)
Trough
d)
Period
14.
All waves have the ability to:
a)
Transfer matter.
b)
Transfer energy.
c)
Travel at the speed of sound in a vacuum.
d)
All of the above.
15.
The electromagnetic waves with the highest energy and shortest wavelength are:
a)
Gamma
b)
X-rays
c)
UV Rays
d)
Microwaves
16.
How fast do electromagnetic waves travel?
a)
Speed of sound
b)
Speed of light
c)
We currently do not know
d)
It depends on the type of wave
17.
A car is traveling at a constant speed of 30 m/s. The driver has to come to a complete stop to avoid hitting a chupacabra. The time it took to stop was 5 seconds. What is the average acceleration of the car?
a)
2 m/s/s
b)
-6 m/s/s
c)
6 m/s/s
d)
25 m/s/s
18.
In which of the following situations is acceleration occurring?
a)
A Ferrari driving at a constant speed of 100 mph.
b)
An airplane traveling in a straight line at a constant speed.
c)
A Prius rounding a curve driving at a constant speed of 55 mph.
d)
A car sitting in the driveway.
19.
An atom has 29 protons, 29 electrons, and 35 neutrons. What is the mass number of the atom?
a)
29
b)
35
c)
93
d)
64
20.
Which pair of elements is most similar?
a)
Ca and F
b)
Na and Cl
c)
Ne and Ar
d)
Li and Ne
21.
In the periodic table, the rows are called ___________ and they tell us _________.
a)
Groups, Number of valence electrons
b)
Groups, Number of energy levels
c)
Periods, Number of valance electrons
d)
Periods, Number of energy levels
22.
An unknown substance has a mass of 37 grams and a volume of 10 cubic centimeters. What is the density of the unknown substance?
a)
3.7 g
b)
3.7 g/cm ^3
c)
370 g
d)
370 g/ cm ^3
23.
When atoms covalently bond, they:
a)
Gain protons
b)
Lose protons
c)
Share protons
d)
Share electrons
24.
Which type of bond is responsible for atoms of pure silver to remain bonded?
a)
Covalent
Covalent
Covalent
b)
Ionic
c)
Metallic
d)
Hydrogen
25.
NaCl is a compound that results from what kind of bonding?
a)
Covalent
b)
Ionic
c)
Hydrogen
d)
Metallic
26.
Which of the following is a physical property of gold?
a)
Gold is metallic with a yellow color.
b)
Gold has a density of 19.3 g/cm ^ 3
c)
Gold has a melting point of 1062 degrees Celsius
d)
All of these are physical properties of gold
27.
Which situation provides the best evidence that a chemical reaction has taken place?
a)
A metal strip bends when heated.
b)
A cold piece of glass breaks when placed in hot water.
c)
Two solutions mixed in a beaker produce a solid.
d)
A chemical completely dissolves in water and the temperature remains constant.
28.
How many hydrogen atoms are in two molecules of glucose 2C6H12O6
a)
48
b)
12
c)
24
d)
12
29.
What numbers should precede Ca and O2 in the following equation?
___Ca + ___O2 --> 2CaO2
___Ca + ___O2 --> 2CaO2
a)
2, 2
b)
3, 2
c)
4, 2
d)
2, 4
30.
Which of the following states the Law of Conservation of Mass?
a)
Atoms are rearranged in a chemical reaction and some join new molecules.
b)
Two compounds combine to form a new compound with different properties.
c)
Mass cannot be created or destroyed in a chemical reaction.
d)
Energy is neither created nor destroyed in a chemical reaction.
31.
Is the following equation balanced or unbalanced?
AlBr3 + 3K --> 3KBr + Al
AlBr3 + 3K --> 3KBr + Al
a)
Balanced
b)
Unbalanced
32.
In which kind of chemical reaction do substances combine with oxygen to produce energy in the form of heat or light?
a)
Synthesis
b)
Decomposition
c)
Combustion
d)
Single Replacement
33.
In which kind of chemical reaction are compounds broken down into their simpler substances?
a)
Decomposition reaction
b)
Synthesis reaction
c)
Single replacement reaction
d)
Double replacement reaction
34.
The weight of a person on Earth is 6 times his or her weight on the Moon. What type of force is responsible for a person's weight?
a)
Inertia
b)
Electromagnetic
c)
Gravitational
d)
Mechanical
35.
Mike wants to determine the weight of some small stones. He places them on a scale that measures the mass of each stone. Mike's final results should be reported in which metric unit?
a)
grams / cm ^ 3
b)
grams
c)
liters
d)
newtons
36.
Sarah wants to measure the distance her kangaroo can jump. Sarah's final results should be reported in which metric unit?
a)
Meters
b)
Liters
c)
Grams
d)
Miles
37.
As most substances change state/phase from a solid to a liquid, the particles themselves:
a)
decrease in size
b)
decrease in energy
c)
increase in energy
d)
increase in size
38.
When a substance is cooled, its particles typically
a)
move slower and closer together
b)
move faster and farther apart
c)
do not change size, and their motion does not change
d)
becomes smaller, and their motion does not change
39.
Which of the following are "universal" or "fundamental" forces?
a)
Heat and friction
b)
Electromagnetic and gravitational
c)
Sound and light
d)
Potential and kinetic
40.
What force keeps the Moon in orbit around the Earth?
a)
Nuclear
b)
Electric
c)
Gravitational
d)
Magnetic
41.
Which of the following is NOT one of the four fundamental forces?
a)
Gravity
b)
Friction
c)
Electromagnetic force
d)
Strong nuclear force
42.
A force of 20 N acts on a 5 kg block. What is the acceleration?
a)
4 g
b)
4 m/s
c)
50 m/s
d)
50 g
43.
A force of 20 N acts on a 5 kg block. What is the acceleration?
a)
25 m/s
b)
4 g
c)
4 m/s
d)
25 g
44.
What force is required to accelerate a car at a rate of 2 m/s/s if the car has a mass of 3000 kg?
a)
1500 N
b)
1500 g
c)
6000 g
d)
6000 N
45.
What is the mass of a falling rock if it produces a force of 147 N?
a)
147 g
b)
147 N
c)
15 g
d)
15 N
46.
What is the formula for Newton's 2nd Law of Motion?
a)
F = MA
b)
F = M/A
c)
D = MV
d)
D = M / V
47.
Which of the following explains the difference between speed and velocity?
a)
Velocity has motion, and speed does not.
b)
Velocity has direction, and speed does not.
c)
Velocity involves time, and speed does not.
d)
Velocity involves acceleration, and speed dos not.
48.
Which of the following best represents force?
a)
A push or a pull that always causes motion.
b)
A push or a pull that always causes acceleration.
c)
A push or a pull acting without an object.
d)
A push or a pull that is acting on an object.
49.
Dividing the total distance traveled by the total time is how to calculate.
a)
Average speed
b)
Average velocity
c)
Average acceleration
d)
Average motion
50.
The positive particles of an atom are ___________.
a)
electrons
b)
protons
c)
neutrons
51.
The center of an atom where its neutrons and protons are is called the _____________.
a)
nucleus
b)
electron cloud
c)
center
52.
An atom with atomic number 6 would have how many protons?
a)
6
b)
12
c)
3
53.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
54.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
55.
How many protons are in an atom of carbon?
a)
12.01
b)
8
c)
6
d)
14
56.
Each column in the periodic table is called a
a)
period
b)
group
c)
cluster
d)
unit
57.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
58.
What is the name of the element? (Periodic table will be needed)
a)
sodium
b)
magnesium
c)
vanadium
59.
How many valence electrons does the element have?
a)
1
b)
2
c)
3
d)
4
60.
This particle determines what element you have - the elements identity.
a)
electron
b)
proton
c)
neutron
d)
valence shell
61.
In the equation, 146C --> 147N + 0-1B, the _______ decay of radioactive carbon-14 results in the creation of a new nitrogen-14 atom.
a)
Gamma
b)
Beta
c)
Alpha
62.
Solve this equation for alpha decay.
85209At = ___ + 24He
85209At = ___ + 24He
a)
83205Bi
b)
86209Rn
c)
81207Tl
d)
85208At
63.
How many Aluminum atoms are in Al2O3?
a)
3
b)
5
c)
2
d)
1
64.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Metal and 1 Nonmetal
c)
2 Metals
d)
2 Noble Gases
65.
What is the proper name for S2O2?
a)
Sulfur oxide
b)
Sulfur dioxide
c)
Sulfur (II) oxide
d)
Disulfur dioxide
66.
Valence electrons are found
a)
in the innermost energy level of an atom
b)
in the middle energy levels of an atom
c)
in the outermost energy levels of an atom
67.
What are the correct coefficients when this equation is balanced?
KClO3 --> KCl + O2
KClO3 --> KCl + O2
a)
2,2,2
b)
2,2,3
c)
1,2,3
d)
3,3,3
68.
The left side of the equation below is called
a)
Products
b)
Reactants
69.
Which would NOT increase the rate at which a sugar cube dissolves?
a)
Reducing the amount of solvent
b)
Crushing the sugar cube
c)
Stirring the solution
d)
Heating the solvent
70.
The solubility graph below shows the amounts of four substances that will dissolve in 100 grams of water at various water temperatures.
Which substance has 80 grams of solute dissolved in 100 grams of water at 50 C?
a)
Potassium Bromide
b)
Ammonium Chloride
c)
Potassium Chloride
d)
Lithium Hydroxide
71.
Which state of matter has particles that are tightly packed?
a)
liquid
b)
gas
c)
solid
72.
Using the picture, match the state of matter in glass B with its correct name.
a)
Gas
b)
Liquid
c)
Solid
d)
Plasma
73.
If the pH of a solution is 9, it is a....
a)
acid
b)
base
c)
both
d)
none
74.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
75.
A very fast snail can go 360 meters in 18 seconds. What is its average speed?
a)
20 m/s
b)
30m/s
c)
40m/s
d)
60m/s
76.
What is the net force in this picture?
a)
50 Newtons to the right
b)
950 Newtons to the right
c)
950 Newtons to the left
d)
50 Newtons to the left
77.
Two forces act on an object at the same time. What is the net force of the system?
a)
9 N to the right
b)
9 N to the left
c)
3 N to the left
d)
18 N to the left
78.
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
a)
Chemical to light
b)
Electrical to chemical
c)
Electrical to light
d)
Chemical to electrical
79.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________.
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
80.
The roller coaster cart has the most gravitational potential energy at position-
a)
W
b)
X
c)
Y
d)
Z
81.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
82.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
83.
When the frequency of a wave increases, what happens to the wavelength?
a)
The wavelength is not directly affected by the frequency of a wave.
b)
The wavelength increases.
c)
The wavelength decreases.
d)
More specific information is needed to form a conclusion about the wavelength.
84.
A mechanical wave cannot travel through...
a)
a vacuum(empty space).
b)
water.
c)
air.
d)
glass.
85.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
86.
Which type of interaction is this?
a)
reflection
b)
refraction
c)
diffraction
87.
Which type of interaction is this?
a)
reflection
b)
refraction
c)
diffraction
88.
Which type of interaction is this?
a)
reflection
b)
refraction
c)
diffraction
89.
Which type of interaction is this?
a)
reflection
b)
refraction
c)
diffraction
90.
The bending of a wave due to the change in speed is called
a)
interference
b)
diffraction
c)
reflection
d)
refraction
91.
Which of the following is a series circuit?
a)
b)
c)
d)
92.
Which of the following is a simple parallel circuit?
a)
b)
c)
d)
93.
What material is a good conductor?
a)
copper
b)
wood
c)
rubber
d)
plastic
94.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
95.
How are electromagnets different from magnets?
a)
magnets can be turned on/off
b)
you can turn an electromagnet on/off
c)
magnets are more powerful
d)
magnets have a North and South pole
96.
Which statement best describes the atoms of elements that form compounds by covalent bonding?
a)
They share electrons between them.
b)
They have a large difference in atomic mass.
c)
They are in the same period in the periodic table
d)
They have a large difference in valence electron number.
97.
Which element has the same number of valence electrons as krypton (Kr)?
a)
neon (Ne)
b)
fluorine (F)
c)
chlorine (Cl)
d)
selenium (Se)
98.
How many neutrons are in an atom of Pu-246?
a)
94
b)
150
c)
152
d)
246
99.
Who has been your favorite Science teacher this year?
a)
Queen Smith
b)
Ms. A. Smith
c)
Evil Queen Smith
d)
Ms. Smith Room 805
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