5/31/25, 6:13 PM WGU C165 Physical Sciences OA
WGU C165 Physical Sciences Taken by: Wiseman
OA
100% Score 150/ 150
1. According to the theory of plate tectonics, volcanoes are especially likely to
form along plate boundaries because of rising magma. New satellite data
mapping the ocean floor reveals thousands of seamounts, which are small
volcanoes. Some of the seamounts are in lines that could correspond to past
or present plate boundaries, but many are not aligned in this way.
How should scientists appropriately respond to the idea that some new
mechanism of forming the volcanoes is involved?
Reject it because it contradicts the theory of plate tectonics
Accept it if the person proposing it is a credible expert on plate
tectonics
Carry out more research to understand better how the seamounts
form
Stage public debates to get a consensus on how the seamounts
form
2. A woman does pushups by lowering her body to the floor using her arms and
then pressing against the floor with her hands to push herself back up. Which
force causes her to rise?
Correct answer
3. Why was the shrinking Earth idea replaced by the theory of plate tectonics?
Plate tectonics was a new theory, which made it more reliable.
,5/31/25, 6:13 PM WGU C165 Physical Sciences OA
Plate tectonics explained observations about Earth that the
shrinking Earth idea could not explain.
Geologists voted on which theory to accept, and chose plate
tectonics.
Many well-known geologists were involved in proposing plate
tectonics.
4. Which kind of electromagnetic radiation is commonly used for controlling air
traffic by locating planes?
Ultraviolet
Radio waves
X-rays
Visible light
5. In the water cycle, ___ in the form of rain or snow falls from the clouds.
Correct answer
precipitation
6. Which action demonstrates a chemical change?
Cooking an egg
Shredding paper
Evaporating water
breaking a stick
,5/31/25, 6:13 PM WGU C165 Physical Sciences OA
7. In general, for electromagnetic radiation, the ___ the wavelength, the more ___
it is to cells.
Correct answer
8. In which layer of the atmosphere do hurricanes typically develop and gain
strength due to warm ocean waters and atmospheric conditions?
Stratosphere
Troposphere
Mesosphere
Thermosphere
9. What meteorological phenomenon is typically associated with a sudden drop
in temperature and a shift in wind direction, often leading to precipitation?
A warm front moved through the area.
A cold front moved through the area.
A stationary front remained in place.
An occluded front developed.
10. Who proposed the geocentric theory ? Who proposed heliocentric theory ?
, 5/31/25, 6:13 PM WGU C165 Physical Sciences OA
Correct answer
Copernicus
11. In which change is energy transferred from the surroundings to the
substance?
Freezing
Condensing
Melting
12. A neutral subatomic particle which has a mass nearly the same as that of a
proton is the
Photon
Neutron
Neutrino
Electron
13. Which inquiry necessitates a controlled experiment to determine the
outcome?
What is the relationship between rock density and mineral
composition?
How does temperature affect the rate of rock weathering?
What types of minerals are found in sedimentary rocks?
How do different soil types influence plant growth?
WGU C165 Physical Sciences Taken by: Wiseman
OA
100% Score 150/ 150
1. According to the theory of plate tectonics, volcanoes are especially likely to
form along plate boundaries because of rising magma. New satellite data
mapping the ocean floor reveals thousands of seamounts, which are small
volcanoes. Some of the seamounts are in lines that could correspond to past
or present plate boundaries, but many are not aligned in this way.
How should scientists appropriately respond to the idea that some new
mechanism of forming the volcanoes is involved?
Reject it because it contradicts the theory of plate tectonics
Accept it if the person proposing it is a credible expert on plate
tectonics
Carry out more research to understand better how the seamounts
form
Stage public debates to get a consensus on how the seamounts
form
2. A woman does pushups by lowering her body to the floor using her arms and
then pressing against the floor with her hands to push herself back up. Which
force causes her to rise?
Correct answer
3. Why was the shrinking Earth idea replaced by the theory of plate tectonics?
Plate tectonics was a new theory, which made it more reliable.
,5/31/25, 6:13 PM WGU C165 Physical Sciences OA
Plate tectonics explained observations about Earth that the
shrinking Earth idea could not explain.
Geologists voted on which theory to accept, and chose plate
tectonics.
Many well-known geologists were involved in proposing plate
tectonics.
4. Which kind of electromagnetic radiation is commonly used for controlling air
traffic by locating planes?
Ultraviolet
Radio waves
X-rays
Visible light
5. In the water cycle, ___ in the form of rain or snow falls from the clouds.
Correct answer
precipitation
6. Which action demonstrates a chemical change?
Cooking an egg
Shredding paper
Evaporating water
breaking a stick
,5/31/25, 6:13 PM WGU C165 Physical Sciences OA
7. In general, for electromagnetic radiation, the ___ the wavelength, the more ___
it is to cells.
Correct answer
8. In which layer of the atmosphere do hurricanes typically develop and gain
strength due to warm ocean waters and atmospheric conditions?
Stratosphere
Troposphere
Mesosphere
Thermosphere
9. What meteorological phenomenon is typically associated with a sudden drop
in temperature and a shift in wind direction, often leading to precipitation?
A warm front moved through the area.
A cold front moved through the area.
A stationary front remained in place.
An occluded front developed.
10. Who proposed the geocentric theory ? Who proposed heliocentric theory ?
, 5/31/25, 6:13 PM WGU C165 Physical Sciences OA
Correct answer
Copernicus
11. In which change is energy transferred from the surroundings to the
substance?
Freezing
Condensing
Melting
12. A neutral subatomic particle which has a mass nearly the same as that of a
proton is the
Photon
Neutron
Neutrino
Electron
13. Which inquiry necessitates a controlled experiment to determine the
outcome?
What is the relationship between rock density and mineral
composition?
How does temperature affect the rate of rock weathering?
What types of minerals are found in sedimentary rocks?
How do different soil types influence plant growth?
