5
QuizMultiple Choice

Fundamental Forces — Quiz

Question 5 • Physical Science

Which is an example of the gravitational force?

Answer
A
The particles that make up the neutrons in an oxygen atom are held together.
B
The molecules that make up olive oil stick together.
C
A basketball that was thrown in the air falls to the ground.
D
A radioactive element, uranium, decays and becomes stable.

Explanation

Gravity attracts objects with mass toward one another. The basketball falls back to the ground because Earth’s gravitational force pulls it downward. The other examples involve forces that hold particles or molecules together, or radioactive decay—not gravity.

AI-written and checked against the verified answer.

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