States of matter and the particle model Quiz
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5 questions, one answer each
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1. Which change of state is a solid turning directly into a gas?
- A. melting
- B. evaporation
- C. sublimation
- D. condensation
2. Why can a gas be compressed easily?
- A. There is a lot of empty space between its particles
- B. Its particles are very small
- C. Its particles are held in fixed positions
- D. Its particles have no energy
3. Brownian motion is evidence that:
- A. gases are heavier than liquids
- B. atoms are solid
- C. matter expands when heated
- D. matter is made of tiny moving particles
4. Which statement about evaporation is correct?
- A. It only happens at 100 °C
- B. It happens at the surface at temperatures below the boiling point
- C. It is when a gas turns to a solid
- D. It happens throughout the liquid
5. In which state do particles vibrate about fixed positions with strong forces between them?
- A. gas
- B. liquid
- C. solid
- D. all states