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WorksheetsSemester Two Exam Review
Total questions: 81
Worksheet time: 4hrs 14mins
Name
Class
Date
1.
PCl5 + ___ H2O → ___ HCl + H3PO4
a)
4, 5
b)
1, 6
c)
3, 8
d)
2,2
2.
__ Al + __ FeO → Al2O2 + __ Fe
a)
1, 1, 2
b)
2,1,2
c)
2, 2, 2
d)
2,4,2
3.
Mg + ___ HCl → MgCl2 + H2
a)
1
b)
2
c)
3
d)
4
4.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
5.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
6.
_Na3PO4+_KOH
--->
_NaOH + _ K3PO4
--->
_NaOH + _ K3PO4
a)
1 Na3PO4+3 KOH
--->
3 NaOH + 1 K3PO4
--->
3 NaOH + 1 K3PO4
b)
2 Na3PO4+2 KOH
--->
3 NaOH + 1 K3PO4
--->
3 NaOH + 1 K3PO4
c)
1 Na3PO4+2 KOH
--->
2 NaOH + 1 K3PO4
--->
2 NaOH + 1 K3PO4
d)
3 Na3PO4+3 KOH
--->
3 NaOH + 1 K3PO4
--->
3 NaOH + 1 K3PO4
7.
_AgNO3 + _Cu
--->
_Cu(NO3)2 + _Ag
--->
_Cu(NO3)2 + _Ag
a)
2 AgNO3 + 2 Cu
--->
3 Cu(NO3)2 + 1 Ag
--->
3 Cu(NO3)2 + 1 Ag
b)
2 AgNO3 + 1 Cu
--->
1 Cu(NO3)2 + 2 Ag
--->
1 Cu(NO3)2 + 2 Ag
c)
1 AgNO3 + 2 Cu
--->
2 Cu(NO3)2 + 1 Ag
--->
2 Cu(NO3)2 + 1 Ag
d)
3 AgNO3 + 2 Cu
--->
3 Cu(NO3)2 + 2 Ag
--->
3 Cu(NO3)2 + 2 Ag
8.
Balance this equation, Al2O3 ---> Al + O2
a)
Cannot be balanced
b)
2Al2O3 ---> 2Al + 3O2
c)
2Al2O3 ---> 4Al + 3O2
d)
3Al2O3 ---> 2Al + O2
9.
Balance this reaction: ____ Na3PO4 + ____ KOH ---> ____ NaOH + ____ K3PO4
a)
1,3,3,1
b)
1,3,2,1
c)
2,3,3,1
d)
1,1,3,1
10.
Balance this reaction: ____ NaF + ____ Br2 ---> ____ NaBr + ____ F2
a)
3,1,2,1
b)
1,2,3,4
c)
2,1,2,1
d)
1,2,1,2
11.
The interference of two waves. It could be constructive or destructive.
a)
Reflection
b)
Absorbtion
c)
Diffraction
d)
Superposition
12.
When a wave bounces off of a medium
a)
Reflection
b)
Absorbtion
c)
Diffraction
d)
Superposition
13.
When a wave (and energy from the wave) is absorbed by the material it encounters. This results in the generation of thermal energy.
a)
Reflection
b)
Absorbtion
c)
Diffraction
d)
Superposition
14.
When two or more waves interact with each other and either grow in amplitude (constructive interference) or reduce in amplitude (destructive interference).
a)
Reflection
b)
Absorbtion
c)
Diffraction
d)
Superposition
15.
Two or more waves on different sides of the equilibrium interfere to form a wave with a smaller amplitude.
a)
Constructive Interference
b)
Destructive Interference
c)
Amplitude building
d)
Amplitude tear down
16.
Which of these electromagnetic waves can we see?
a)
radio
b)
x-ray
c)
microwave
d)
visible light
17.
Gamma rays have the shortest waveslength, and therefore the ____ frequency.
a)
lowest
b)
highest
18.
All waves carry
a)
energy
b)
light
c)
matter
d)
particles
19.
Which has a higher frequency than visible light?
a)
radio
b)
microwave
c)
infrared
d)
x-ray
20.
Which of these CANNOT travel in empty space?
a)
electromagnetic waves
b)
mechanical
21.
If ALL colors of visible light are reflected back to your eye, what color will the t-shirt appear?
a)
white
b)
black
c)
red
d)
green
22.
Black will ____ all wavelengths of the visible spectrum.
a)
reflect
b)
absorb
c)
refract
d)
diffract
23.
True or False:
White light is composed of all the colors of the spectrum as shown with a prism
White light is composed of all the colors of the spectrum as shown with a prism
a)
true
b)
false
24.
The color you see is the color that is ___.
a)
reflected
b)
absorbed
25.
What do you see when water droplets refract sunlight?
a)
thunderstorm
b)
eclipse
c)
rainbow
d)
clouds
26.
If you are being taken to the hospital in an ambulance, with the sirens blaring, can you hear the doppler effect?
a)
Yes
b)
no
c)
what is the doppler effect?
27.
The doppler effect can cause an apparent change in...
a)
loudness
b)
intensity
c)
pitch
d)
reasonance
28.
electromagnetic waves with the longest wavelengths are
a)
gamma rays
b)
x-rays
c)
infrared waves
d)
radio waves
29.
________________ are waves used by cops to test the speed of your car with RADAR.
a)
Ultraviolet
b)
Infrared
c)
Radio
d)
Microwaves
30.
Cancer can be treated with_______________waves.
a)
Penicillin
b)
Radio
c)
Infrared
d)
Gamma
31.
Cancer can be treated with_______________waves.
a)
Penicillin
b)
Radio
c)
Infrared
d)
Gamma
32.
The acronym (letters) used to remember visible light is____________
a)
KTPERRY
b)
ROYGBIV
c)
DOGPOUND
d)
ROMERO
33.
Wavelengths on the right side of the Electromagnetic spectrum are ______________.
a)
short
b)
long
c)
average
34.
This wave has the second highest frequency on the spectrum.
a)
microwaves
b)
visible light
c)
x-rays
d)
gamma ray
35.
_______ carry the greatest amount of energy.
a)
x-rays
b)
gamma rays
c)
infrared rays
d)
visible light
36.
What scientific theory attempts to explain the origin of our universe?
a)
Hubble's Law
b)
The Big Bang
c)
Astronomical Expansionism
d)
Red Shift
37.
Which word best describes the big bang theory?
a)
Boom
b)
Kapow
c)
Expansion
d)
Zing
38.
What was the force responsible for bringing large amounts of atoms together in space?
a)
Normal Force
b)
Electromagnetic Force
c)
Nuclear Force
d)
Gravity
39.
Which tool DOES NOT and HAS NOT contributed to our understanding of space and the universe.
a)
Telescope
b)
Particle Collider
c)
Computers
d)
All of these contribute
40.
Which portion of the electromagnetic spectrum can we view using available technology?
a)
Visible Light
b)
X-ray
c)
Gamma Ray
d)
All parts of the spectrum
41.
Why do we use particle colliders/ accelerators?
a)
To view deep into space
b)
To simulate conditions of the early universe
c)
To analyze visible light
d)
To fire particles at peacocks because we hate them
42.
A group of billions of stars, star systems, and star clusters are known as...
a)
A nebula
b)
A supernova
c)
A galaxy
d)
A stellar system
43.
How many galaxies are in the universe?
a)
Just one (ours)
b)
Hundreds
c)
Millions
d)
Billions
44.
What is the name of our galaxy?
a)
Sombrero
b)
Pinwheel
c)
Andromeda
d)
Milky Way
45.
What type of galaxy is the milky way?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Regular
46.
How large is our galaxy
a)
1 light year across
b)
93 million miles
c)
One Astronomical Unit
d)
100,000 light years
47.
The further away a galaxy is from Earth, the ______ _______
a)
More redshift
b)
Less Redshift
c)
More Blueshift
d)
Less Blueshift
48.
The faster a galaxy is moving away from Earth, the ______ _______.
a)
More redshift
b)
Less Redshift
c)
More Blueshift
d)
Less Blueshift
49.
What best describes the doppler effect?
a)
An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
b)
When sound changes pitch
c)
When light changes color
d)
An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.
50.
If a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
51.
If a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
52.
If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
53.
The vast majority of galaxies in our universe are moving away from us. We know this because we observe __________ in the galaxies absorption spectra.
a)
Redshift
b)
Blueshift
c)
Turbulance
d)
Superposition
54.
An object that is moving VERY fast away from Earth would have ________ than an object that is moving very slow away from Earth.
a)
More Redshift
b)
More Blueshift
c)
Less Redshift
d)
Less Blueshift
55.
When redshift occurs, the perceived frequency of the wave would...
a)
Increase
b)
Decrease
c)
Stay the same
d)
Make bird sounds
56.
When blueshift occurs, the perceived WAVELENGTH of the wave would...
a)
Increase
b)
Decrease
c)
Stay the same
d)
Make frog sounds
57.
When blueshift occurs, the perceived frequency of the wave would...
a)
Increase
b)
Decrease
c)
Stay the same
d)
Make duck sounds
58.
What elements were present in the early universe
a)
All of them
b)
Hydrogen and Helium
c)
Lithium and Beryllium
d)
Magnesium and Iron
59.
What happens when gravity pulls a large mass of hydrogen together and heats it to 10 million degrees Kelvin?
a)
A star is born
b)
A protostar is born
c)
A nebula is born
d)
A hermit crab is born
60.
What is the process that fuels a star
a)
An old man with a cheap big lighter
b)
Fission
c)
Fusion
d)
Combustion
61.
What is responsible for the formation of all elements other than hydrogen and helium?
a)
Fusion in stars
b)
Fission in stars
c)
The expansion of the universe
d)
A silken robe being worn by an elegant camel
62.
The heavier a main sequence star is...
a)
The faster it dies
b)
The higher the temperature
c)
The more force gravity applies
d)
All of the above
63.
90% of a star's life is spent upon which portion of a HR diagram?
a)
Super Giant
b)
Giant
c)
White Dwarf
d)
Main Sequence
64.
The heaviest stars in the universe will end their life cycle by...
a)
Exploding in a massive supernova and becoming a black hole
b)
Expanding and becoming a red giant
c)
Becoming a white dwarf
d)
Becoming a black dwarf
65.
Our sun's life will end as a
a)
black hole
b)
supernova
c)
white dwarf that slowly cools into a black dwarf
d)
main sequence star
66.
A star will collapse when...
a)
It wants to collapse. It do what it want!
b)
nuclear fusion stops in the core
c)
the mass gets too high and gravity crushes it into tiny pieces
d)
it reaches 10 million degrees Kelvin
67.
An object that is moving VERY fast towards the Earth would have ________ than an object that is moving very slow towards the Earth.
a)
More Redshift
b)
More Blueshift
c)
Less Redshift
d)
Less Blueshift
68.
What best describes the doppler effect?
a)
An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
b)
When sound changes pitch
c)
When light changes color
d)
An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.
69.
If a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
70.
If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
71.
The vast majority of galaxies in our universe are moving away from us. We know this because we observe __________ in the galaxies absorption spectra.
a)
Redshift
b)
Blueshift
c)
Turbulance
d)
Superposition
72.
Use the image to identify the motion of the object relative to Earth. Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.
a)
It is not moving
b)
It is moving away from Earth (Redshift)
c)
It is moving towards Earth (Blueshift)
d)
It is moving towards Earth (Redshift)
73.
An object that is moving VERY fast away from Earth would have ________ than an object that is moving very slow away from Earth.
a)
More Redshift
b)
More Blueshift
c)
Less Redshift
d)
Less Blueshift
74.
An object that is moving VERY fast towards the Earth would have ________ than an object that is moving very slow towards the Earth.
a)
More Redshift
b)
More Blueshift
c)
Less Redshift
d)
Less Blueshift
75.
Which discovery(ies) came from our understanding redshift/ blueshift?
a)
The universe is expanding
b)
Most galaxies are moving away from us
c)
Andromeda galaxy will collide with the Milky way in 3.75 billion years
d)
All of the above (and many more)
76.
When redshift occurs, the perceived frequency of the wave would...
a)
Increase
b)
Decrease
c)
Stay the same
d)
Make bird sounds
77.
When redshift occurs, the perceived WAVELENGTH of the wave would...
a)
Increase
b)
Decrease
c)
Stay the same
d)
Make squirrell sounds
78.
When blueshift occurs, the perceived frequency of the wave would...
a)
Increase
b)
Decrease
c)
Stay the same
d)
Make duck sounds
79.
When blueshift occurs, the perceived WAVELENGTH of the wave would...
a)
Increase
b)
Decrease
c)
Stay the same
d)
Make frog sounds
80.
What scientific theory attempts to explain the origin of our universe?
a)
Hubble's Law
b)
The Big Bang
c)
Astronomical Expansionism
d)
Red Shift
81.
Which word best describes the big bang theory?
a)
Boom
b)
Kapow
c)
Expansion
d)
Zing
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