Checking understanding of matter, density and the particle model

5 questions

Assessing knowledge of definitions, calculations and the particle model of matter.

Questions

1. What is the correct formula for density?
2. According to the particle model, particles of a solid are tightly packed and vibrate in fixed positions.
3. A metal block has a mass of 540 g and a volume of 120 cm³. What is its density?
4. Which state of matter has particles that are far apart and move freely?
5. The particle model explains why the density of a substance can change with temperature.