WGU C165
WGU C165 Physical Sciences Practice
Questions 2025
When there is no conceivable way to prove a statement false, then the statement is -
Correct Answer ✔untestable
A scientific theory is discarded -Correct Answer ✔if it is contradicted by new
experiments or observations.
Theories help scientists to: -Correct Answer ✔explain large amounts of data
When might scientists analyze or test a model instead of the real system of interest? -
Correct Answer ✔When the real system is too complex or difficult to analyze
If new data were found to disagree with a long-standing theory, what could happen? -
Correct Answer ✔The theory could be modified or discarded
Why does ultraviolet light damage the skin, but visible light does not? -Correct Answer
✔Ultraviolet light has a shorter wavelength than visible light
The speed of a sound wave depends on -Correct Answer ✔medium
The wavelength of a transverse wave travelling in a rope is -Correct Answer ✔the
distance from crest to crest or trough to trough
When energy changes from one type to another, the total energy -Correct Answer
✔remains constant
WGU C165
WGU C165 Physical Sciences Practice
Questions 2025
When there is no conceivable way to prove a statement false, then the statement is -
Correct Answer ✔untestable
A scientific theory is discarded -Correct Answer ✔if it is contradicted by new
experiments or observations.
Theories help scientists to: -Correct Answer ✔explain large amounts of data
When might scientists analyze or test a model instead of the real system of interest? -
Correct Answer ✔When the real system is too complex or difficult to analyze
If new data were found to disagree with a long-standing theory, what could happen? -
Correct Answer ✔The theory could be modified or discarded
Why does ultraviolet light damage the skin, but visible light does not? -Correct Answer
✔Ultraviolet light has a shorter wavelength than visible light
The speed of a sound wave depends on -Correct Answer ✔medium
The wavelength of a transverse wave travelling in a rope is -Correct Answer ✔the
distance from crest to crest or trough to trough
When energy changes from one type to another, the total energy -Correct Answer
✔remains constant
WGU C165
