Density and States of Matter Quiz
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5 questions, one answer each
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1. Density is defined as:
- A. Volume per unit mass
- B. Mass per unit volume
- C. Mass times volume
- D. Mass minus volume
2. In which state are particles arranged in a regular, closely packed pattern?
- A. Gas
- B. Liquid
- C. Solid
- D. Plasma
3. A substance melts. What happens to its mass?
- A. It increases
- B. It decreases
- C. It stays the same
- D. It becomes zero
4. Why is melting classed as a physical change?
- A. A new substance is formed
- B. No new substance is formed and the change can be reversed
- C. Mass is not conserved
- D. It only happens to gases
5. An object has a mass of 3 kg and a volume of 0.0015 m³. What is its density?
- A. 200 kg/m³
- B. 450 kg/m³
- C. 2000 kg/m³
- D. 4500 kg/m³