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C165 / C 165 Objective Assessment Guide (Latest Update 2025 / 2026) Integrated Physical Sciences | Practice Questions and Answers | Grade A | 100% Correct - WGU

Question:

Callisto is a moon of the planet Jupiter. Which of these terms BEST describes a research project in which telescopes are used to study ice sheets on Callisto?

Answer:

Observational Study

Question:

Which of these fields depends the MOST on field studies?

Answer:

Earth Science

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Question:

In what sense was Rutherford's planetary model of the atom a model?

Answer:

It represented the atom in terms of a more familiar system to which it was analogous.

Question:

Galileo found that when air resistance can be ignored, heavier and lighter objects fall in the same way. He tested this rule and confirmed it was consistent with all available data.The rule Galileo found can BEST be described as a

Answer:

Law

Question:

Isaac Newton was reportedly thinking about the motion of the moon when he noticed an apple fall. He got the idea that the same force of gravity pulling the apple toward Earth controls the motion of the moon. Before Newton had tested this idea by doing calculations and comparing them with astronomical data, Newton's idea would MOST accurately be called a

Answer:

Hypothesis

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Question:

A team of scientists wants to investigate whether objects slide on sand with less friction if the sand is wet. Suppose they have not yet carried out any experiments.The statement they are investigating, that the friction of sliding on sand is reduced if the sand is wet, is an example of a(n)

Answer:

Hypothesis

Question:

It is often said that you can never prove a scientific theory right. Why?

Answer:

It is impossible to directly test every single instance in which it applies.

Question:

Which of the following describes how scientific investigations are carried out?

Answer:

Scientists use different procedures but rely on evidence and repeated testing to confirm their ideas.

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Question:

Different explanations for the origin of the universe were favored at different times. The static model stated that the universe always existed as it is now.Another explanation was the steady state model that the universe has no beginning and matter is being created to fill in as the universe expands. The third was the big bang model.What led scientists to settle on the big bang explanation that the universe began from a tiny point?

Answer:

Evidence was found such as the leftover radiation from the big bang and the correct fractions of certain kinds of atoms.

Question:

Which of the following derived units do NOT measure speed?

Answer:

mm/min^2

Question:

If the net force is zero on a motorcycle traveling at 20 m/s, which of the following statements is true concerning the motion of the motorcycle?

Answer:

The motorcycle will continue traveling at 20 m/s.

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