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WorksheetsFall Semester Exam Review
Total questions: 81
Worksheet time: 2hrs 17mins
Name
Class
Date
1.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
2.
Which element has 56 electrons ?
a)
Barium
b)
Boron
c)
Beryllium
d)
Bromine
3.
Atoms have no electric charge because they...
a)
have an equal number of charged and non charged particles
b)
have neutrons in their nuclei
c)
have an equal number of electrons and protons
d)
have an equal number of neutrons and protons
4.
Electrons have this type of charge...
a)
negative
b)
positive
c)
neutral
5.
number of neutrons = _____
a)
atomic number - mass number
b)
isotope number - atomic weight
c)
mass number - atomic weight
d)
mass number - atomic number
6.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
7.
the nucleus contains both the
a)
proton & neutron
b)
proton & electron
c)
neutron & electron
d)
neutron and atom
8.
The elements in group 18 are all very
a)
stable
b)
reactive
c)
dense
d)
heavy
9.
The subatomic particle with a neutral charge is:
a)
protons
b)
electrons
c)
neutrons
d)
cloud
10.
Which particle does not contribute mass to the atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
11.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
12.
Elements in the same ________ are more chemically similar.
a)
group
b)
period
c)
club
d)
table
13.
The majority of elements on the periodic table are
a)
man made.
b)
nonmetals.
c)
metals.
d)
gases.
14.
Which elements have the most similar chemical properties?
a)
K and Na
b)
K and Ca
c)
K and Cl
d)
K and S
15.
Name group 8A on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
transition metals
d)
noble gases
16.
How many neutrons are in Phosphorus (P) ?
a)
15
b)
31
c)
16
d)
14
17.
How many atoms are in the element Carbon in this compound?
H2C3O4N5
H2C3O4N5
a)
2
b)
3
c)
4
d)
5
18.
Number of Cr atoms in Al₂(Cr₂O₇)₃
a)
2
b)
5
c)
6
d)
9
19.
In this image, what are the information in red is called the_______.
a)
Product
b)
Reactant
c)
Chemical Subscript
20.
In this image, the information to the right of the arrow (in black) is called the_______.
a)
Product
b)
Reactant
c)
Chemical Subscript
21.
Is this balanced?...
Al + O2 --> 2Al2O3
Al + O2 --> 2Al2O3
a)
Yes!
b)
NO!
22.
When materials combine to form new compounds it is a chemical change. Which example is a chemical change?
a)
baking powder fizzing
b)
water boiling
c)
ice melting
d)
sugar cube dissolving
23.
Tearing paper is an example of
a)
physical change.
b)
chemical change.
c)
chemical reaction.
d)
solution.
24.
Which process is a physical change?
a)
Rusting iron
b)
Burning coal
c)
Tarnishing silver
d)
Melting ice
25.
Which of the following does not show a chemical change?
a)
change of state of matter
b)
color change
c)
production of a gas
d)
all show a chemical change
26.
A chemical change creates a ______.
a)
change in volume
b)
new substance
c)
mixture
d)
solution
27.
Good conductor of heat
a)
Metal
b)
Nonmetal
28.
Which of the following is NOT a characteristic of most metals?
a)
Brittle
b)
Good conductor
c)
Ductile
d)
Malleable
29.
Which is a property of a metal?
a)
It is brittle
b)
It is a good Insulator
c)
It has a dull appareance
d)
It is malleable
30.
Brittle
a)
Metal
b)
Nonmetal
31.
The word “luster” refers to which property of matter?
a)
The ability to conduct electrical or thermal energy
b)
Capable of being drawn out into thin wires
c)
The way a surface appears when it reflects light
d)
Suitable for being shaped by beating or rolling
32.
Which element is a metalloid?
a)
Titanium
b)
Selenium
c)
Potassium
d)
Polonium
33.
What is the law of conservation of mass?
a)
Matter changes when reacted or changed.
b)
The mass of all reactants are changed during a physical or chemical change
c)
The mass of the reactants is the same as the mass of the products
d)
The mass of the products is different than the mass of the reactants.
34.
The formation of a ________________ indicates that a chemical reaction has taken place.
a)
particular
b)
precipitate
c)
participate
d)
palate
35.
Which atom has the most valance electrons?
a)
Chlorine (Cl)
b)
Oxygen (O)
c)
Silicon (Si)
d)
Aluminum (Al)
36.
If you are looking a star's spectral analysis, how do you determine what elements it is made of?
a)
Colour
b)
Shift
c)
Black Lines
d)
Scope
37.
Waves with longer wavelengths have
a)
higher frequency
b)
lower frequency
c)
higher amplitude
d)
lower amplitude
38.
What is the main element in a stars composition?
a)
Hydrogen
b)
Helium
c)
Lithium
d)
Heavy Elements
39.
A scale diagram of four galaxies is provided. Which galaxy has a diameter closest to 75,000 light years?
a)
Galaxy JK23
b)
Galaxy TO37
c)
Galaxy RB17
d)
Galaxy WD28
40.
Which category is our Sun located in?
a)
White Dwarfs
b)
Supergiants
c)
Main Sequence
d)
Giants
41.
Compared to the rest of the stars, our sun is considered...
a)
Extremely Large and Cold
b)
Small with a medium temperature
c)
Medium size with medium temperature
42.
Proxima Centauri is the closest star to Earth after the Sun and is located 4.3 light years away from Earth. How long does it take light from Proxima Centauri to reach Earth?
a)
1 year
b)
4.3 years
c)
43 years
d)
10 trillion years
43.
If the object is moving away its light is shifted and is called ______________.
a)
Your mom
b)
No shift
c)
Blue shift
d)
Red shift
44.
Astronomers use the EM spectrum to observe the universe because
a)
the information provided by visible light is limited
b)
different wavelengths provide different information about stars
c)
equipment is expensive
d)
visible light only provides information about close objects
45.
Which point has the most kinetic energy?
a)
A
b)
B
c)
c
d)
D
46.
A student listens to music with a digital music player, similar to the one shown below. Which best describes the energy transformations that take place in the music player?
a)
Mechanical to chemical to electrical
b)
Chemical to sound to electrical
c)
Chemical to electrical to sound
d)
Electrical to heat to sound
47.
Identify the energy transformations that occurs when plants produce their food from the Sun
a)
chemical to thermal
b)
light to chemical
c)
thermal to light
d)
chemical to electrical
48.
An example of an energy transformation from chemical energy to electrical to light energy is...
a)
A bolt of lightning lights the night sky
b)
A candle glows brightly in the dark
c)
A fire in a fireplace lights up a room
d)
A battery causes a flashlight to shine
49.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
50.
Which of the following has the most potential energy?
a)
A car at the top of a hill
b)
A car speeding down the hill
c)
A person at the top of a hill
51.
What is the net force on the ball?
a)
200 N to the right
b)
200 N to the left
c)
50 N to the left
d)
50 N to the right
52.
A girl is pushing a cart by herself with a force of 7 N. What will happen if a boy begins to help her and their combined force is 17 N?
a)
The cart will speed up.
b)
The cart will slow down.
c)
The cart will move at a constant speed in a straight line.
d)
The cart will fly to never never land!
53.
Are the forces acting on the sled in Section 3 balanced or unbalanced? The track is smooth and frictionless.
a)
Balanced
b)
Unbalanced
54.
What is happening at A?
a)
Stationary
b)
Accelerating
c)
Slower steady speed; moving away from the starting position
d)
Steady speed; returning to start position
55.
In each of the following cases, determine where the car has no acceleration ?
a)
A car shortly after a stoplight turns green.
b)
A car approaching a red light
c)
A car with the cruise control set at 80 km/h
d)
A car moving down a ramp
56.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up
57.
A description of the speed and direction of an object's motion
a)
Velocity
b)
Speed
c)
Acceleration
d)
Vector
58.
What law of motion does this picture represent?
a)
Newtons 1st law
b)
law of gravity
c)
Newtons 4th law
d)
Newtons 2nd law
59.
What law describes what happens if you are riding a skateboard and hit something (like a rock) with the front wheels.
a)
Newtons 3rd law
b)
Newtons 1st law
c)
Law of gravity
d)
Law of movement
60.
Push or Pull
a)
Friction
b)
Inertia
c)
Force
d)
Gravity
61.
If a cheetah runs 180 miles in 3 hours, what is its average speed?
a)
60 hours
b)
60 miles
c)
60 miles/hour
d)
60 miles/second/second
62.
F=MA
An object of mass 10 kg is accelerated upward at 2 m/s2. What force is required?
An object of mass 10 kg is accelerated upward at 2 m/s2. What force is required?
a)
20 N
b)
2 N
c)
5 N
d)
0 N
63.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
64.
Are forces balanced or unbalanced when a plane is moving at a constant speed in a straight line?
a)
Balanced
b)
Unbalanced
65.
The boat moves to the left at a speed of 4 m/s. The current moves to the right at 2 m/s. What will happen if the current increases to 3 m/s?
a)
The boat will speed up.
b)
The boat will slow down.
c)
The boat will move backwards.
d)
The boat will continue sailing to the left at a constant speed of 4 m/s.
66.
When all the individual forces acting on an object are balanced, What is the natural tendency of an object?
a)
Speed up or slow down
b)
Either stay at rest or come to a rest position
c)
Accelerate
d)
Keep its velocity constant (either moving or at rest)
67.
What law describes what happens if you are riding a skateboard and hit something (like a rock) with the front wheels.
a)
Newtons 3rd law
b)
Newtons 1st law
c)
Law of gravity
d)
Law of movement
68.
Mass is a measure of an object's inertia. Objects with greater mass have a greater inertia; objects with less mass have less inertia.
a)
true
b)
false
69.
What is happening in this graph from point A to B?
a)
The object is accelerating.
b)
The object is not moving.
c)
The object is decelerating.
d)
The object is moving at a constant speed.
70.
An element's identity is determined by the number of
a)
electrons.
b)
protons.
c)
neutrons.
d)
valence.
71.
What determines the reactivity of an element?
a)
Size of its nucleus
b)
Number of total electrons
c)
Number of valence electrons
d)
Number of shells
72.
How do you determine the number of valence electrons an element has?
a)
Look at its period
b)
Look at its group
c)
Look at its atomic number
d)
Look at its atomic mass
73.
Marie had a beaker with a small amount of baking soda. She added a few drops of pickle juice to the baking soda and observed fizzing and bubbling. Based on her observation, which of these can Marie determine about the new substance formed by mixing the baking soda and pickle juice?
a)
A chemical reaction produced a solid.
b)
A chemical reaction produced a gas.
c)
No chemical reaction took place.
d)
Only a physical change happened.
74.
What does the nucleus consist of?
a)
Protons + Electrons
b)
Neutrons + Electrons
c)
Atoms
d)
Protons + Neutrons
75.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
76.
Which could be an example of a balanced force?
a)
An asteroid moving at a constant speed through space
b)
A car accelerating from a stop sign
c)
A box of dishes falling from a counter
d)
A rocket taking off
77.
Which could be an example of an unbalanced force?
a)
A plate sitting on a dining table
b)
A ball at the top of a hill that is not moving
c)
Earth orbiting the Sun
d)
A baseball that has been thrown to home plate.
78.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
79.
What are in galaxies?
a)
ice and rock
b)
dust, gas, and star
c)
stars and ice
d)
water and dust
80.
What are the three types of galaxies?
a)
Spiral, irregular, boxed
b)
Spiral, elliptical, spherical
c)
Spiral, elliptical, square
d)
Spiral, irregular, elliptical
81.
What word best describes our sun?
a)
Average
b)
Supergiant
c)
Dwarf
d)
Red Giant
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