4
lesson pretestMultiple Choice

Pretest

Question 4 • Physics

When atoms get more and more energy, they can ionize. What can happen to a gas as more energy is added to its atoms?

Answer
A
As the atoms move slower, the gas can change into a liquid.
B
As the atoms move faster, the gas can change into a liquid.
C
As the atoms move slower, the gas can change into a plasma.
D
As the atoms move faster, the gas can change into a plasma.

Explanation

Adding energy makes the gas atoms move faster. With enough energy, some atoms lose electrons and become charged particles, turning the gas into plasma; therefore, the correct choice is “As the atoms move faster, the gas can change into a plasma.”

AI-written and checked against the verified answer.

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