Practice Quiz

MCAS Physics Exam Practice

Category - Introductory Physics

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Perfume sprayed from a bottle spreads more easily in a warm room of 25°C than in a cool room of 15°C. Which of the following correctly compares perfume molecules at 25°C to those at 15°C?
  1. At 25°C, they have more mass.
  2. At 25°C, they are moving faster.
  3. At 25°C, they have less kinetic energy.
  4. At 25°C, they are decreasing in volume.
Explanation
Answer: B - At 25°C, they are moving faster.
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