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Integrated-Physical-Sciences WGU Integrated Physical Sciences (MTC1)

  • WGU
  • 4 free sample questions

About this exam

Integrated-Physical-Sciences is the WGU exam WGU Integrated Physical Sciences (MTC1). Paid practice material for this exam is not available yet, but you can try its free sample questions.

Exam code
Integrated-Physical-Sciences
Vendor
WGU
Practice questions
Not available yet
Free sample questions
4
Question bank last updated
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Taken from the free sample set for Integrated-Physical-Sciences.

Question 1

Numerous experiments have confirmed that if the distance between a light source and an observer is
doubled, the intensity of the light as viewed by the observer decreases by a factor of four.
Which type of scientific statement is this?

  1. Option A:
    Law
  2. Option B:
    Hypothesis
  3. Option C:
    Theory

  4. Option D:
    Inference
Show answer and explanation

Correct answer: A

The statement that if the distance between a light source and an observer is doubled, the intensity of
the light decreases by a factor of four, describes a consistent, repeatable observation that has been
confirmed through numerous experiments. This describes a scientific law, specifically the inverse
square law of light. A law summarizes a pattern found in nature, whereas a hypothesis is an untested
prediction, a theory is a well-substantiated explanation, and an inference is a conclusion drawn from
evidence. Reference:
Integrated Physical Sciences, Chapter 4: Scientific Laws and Theories

Question 2

Which question would be appropriate for an observational study?

  1. Option A:
    Does adding salt to water affect how fast the water evaporates?
  2. Option B:
    How does the mass of an object affect the strength of its gravitational field?
  3. Option C:
    Which type of metal conducts electricity best?
  4. Option D:
    What types of rocks are found at a convergent boundary?
Show answer and explanation

Correct answer: D

An appropriate question for an observational study is one that involves collecting data through
observation without manipulation. "What types of rocks are found at a convergent boundary?"
requires observing and identifying the types of rocks naturally occurring at such geological
formations. It doesn't involve changing any variables, fitting the definition of an observational study.
Reference:
Integrated Physical Sciences, Chapter 2: Methods of Scientific Investigation
See all 4 free sample questions