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Physical Science A: Final Exam Review Flashcards | StudBud
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Physical Science A: Final Exam Review
Physical Science A: Final Exam Review
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Pre/Post Test Final Exam
Flashcards
32 cards
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Practice quiz
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Questions
32
Answers
1
Which type of electromagnetic radiation produced by the sun is LEAST dangerous to humans?
X Rays
Microwaves
Ultraviolet Waves
Gamma Rays
2
What would happen to earth if gravity were to be "turned off"
continue to orbit
completely stop
be pulled in toward the sun
continue to fly straight away from its orbit
3
Which explanation about the formation of Bromine is most accurate?
Bromine was formed through fusion in supernova explosions
Bromine was fomred through fission in stars
Bromine was formed through fusion in a main sequence star like our sun.
Bromine was formed during Big Bang
4
The stars produce most of their energy through a process called
combustion
fusion
hydrostaic equilibrium
fission
5
Mt. Everest is the world's tallest mountain. It is part of the Himalayan mountain range, which is formed by India conver
2000km
20km
200km
2km
6
As a planet's orbit gets farther from the sun, its orbital period _______ and its velocity ________
decreases, decreases
increases, decreases
decreases, increases
increases, increases
7
Frost wedging occurs when water collects in the cracks of a rock and then freezes. This is an example of..
chemical weathering
glacial erosion
mechanical weathering
erosion
8
Which substance has the highest albedo?
desert
liquid water
tundra
snow
9
If the lag time is 4 minutes, how many miles away is the epicenter is the earthquake.
2000 miles
1000 miles
1500 miles
None of the above.
10
A wolf travels 15.6 kilometers while hunting. Convert this number to meters
.0000156 m
1,560. m
.0156 m
None
11
What is the force that causes the water to travel up the sides of the graduated cylinder?
cohesive forces
adhesive forces
covalent bonding
hydrogen bonding
12
Which location is closest to the epicenter of the earthquake in this image
C
B
D
A
13
Which piece of evident can be used to support Alfred Wegeners theory?
Living plants and animals on continents today
Current climate is the same
Puzzle like continents and similar fossils
Triassic land reptile fossils and divergent boundaries moving closer
14
Every year, the Earth _______ around the sun. This causes the ______.
Revolve, Day and Night
Revolve, Seasons
Rotate, Day and Night
Rotate, Seasons
15
Convection currents in the mantle contribute to tectonic plate movement. What is a convection current?
transfer of energy from a region of lower temps
transfer of energy by direct contact
transfer of energy by the movement of matter. Hot Fluid Float, Cold Sinks
16
As you move away from the outer layers to the inner layers of the Earth, what general trends occur?
Temps decrease, density decreases and gravity decreases
Temps increases, density decreases, and gravity decreases
Temps increases, density increases, and gravity increases
Temps increase, density decreases and gravity increases.
17
The stars produce most of their energy through a process, shown in the diagram, called
Combustion
Fission
hydrostatic equilibrium
Fusion
18
All are Milankovitch cycles except
eccentricity
axial tilt
gravitational pull
precession
19
What best describes the conditions during the Cambrian
Cool earth, no protective ozone layer
Cold and snowball like planet
Warm and life was thriving
Dinosaurs walked the earth and it was very warm
20
Scientists believe Earth is
14 x 10^12 years old
1.4 x 10^9 years old
14 x 10^6 years old
4.6 x 10^9 years old
21
As you move AWAY from the Mid-Atlantic Ridge, the samples taken are...
younger and colder
younger and warmer
older and colder
older and warmer
22
How did the addition of photosynthetic bacteria change the composition of Earth's atmosphere?
It increased added more methane to the atmosphere and reduced the amount of
It reduced the amount of carbon dioxide and added oxygen to the atmosphere.
It reduced the amount of oxygen and added more carbon dioxide to the atmosp
None of the answers are correct.
23
What would cause the biggest change in the gravitational force between 2 objects?
increasing both of the masses by 1.5 times
Increasing 1 of the masses by 2 times
increasing one of the masses by 3 times
Cutting the distance between the 2 in half
24
Photosynthesizing plants affect the carbon cycle by...
absorbing carbon dioxide and building sugars
reducing the amount of carbon, which reduces soil fertility
none of the above
creating more carbon atoms
25
Which best describes hydrostatic equilibrium?
gravitational pull forces pull inward balanced with electrical pushing out
gravitational forces pull inward and balance with fusion pushing out
gravitational forces pull inward; balance w/ pressure from fission push in
star is saturated with elements heavier than iron
26
How did the addition of photosynthetic bacteria change the composition of the Earth's atmosphere?
Reduced Oxygen and added Carbon Dioxide
Added Methane and reduced Nitrogen
Reduced Carbon Dioxide and added Oxygen
None of the above.
27
The Cabrian Explosion of life is said to be causes by the evolution of _____ almost 3 billion years earlier
multi-cellular life
large mammals
life produced through sexual reproduction
photosynthetic life
28
Which of the following is evidence of the Big Bang Theory?
The universe is getting smaller or compressing.
Cosmic Background Radiation leftover from the Big Bang
The universe is not moving
Cosmic background radiation created by star formation
29
Compared to the original image in the figure below, which light spectra is showing a galaxy moving away from the Earth?
Not enough information to answer the question.
Image A
Image B
The light spectra from A and B do not indicate any motion of the galaxy.
30
Compared to a star like the Sun, a blue white star...
none of the above
fuses elements at a faster rate
is less massive
has a lower surface temperature
31
The overall lifespan of a star is determined mostly by its
temperature
location in the galaxy
velocity
mass
32
What is the lag time of this earthquake?
35 seconds
25 seconds
55 seconds
50 seconds
