Physics Project Questions
1. A garnet has a mass of 5 grams and a volume of 1.5 cm3. Calculate its density. [2]
2. What is the volume of a piece of metal that has a mass of 300 g and a density of 6 g/cm3? [2]
3. What volume of silver metal will weigh exactly 2500 g. The density of silver is 10 g/cm3? [2]
4. The density of a substance is 4 kg/m3. If a sample of the substance has a volume of 24m3, then what is its mass? [2]
5. A rock has a density of 4 kg/m3 and a mass of 16 kg. What is the volume of this rock? [2]
6. A system has a pressure of 5 N/m2. If a force of 2000N is applied, what is the area that the force is applied to? Please state your units. [2]
7. Calculate the pressure exerted on the floor when an elephant who weighs 2400 N stands on one foot which has an area of 0.4m2? [2]
8. How much must a person weigh (force) if the pressure she exerts while standing on one foot has an area of 0.6m2exerts a pressure of 16 Pa? [2]
9. John weighs 200 N and the bottom of his shoes has an area of 0.8 m2. Calculate the
pressure exerted by John’s shoes on the ground. [1.5]
10. Sarah wears high pointed heel shoes. The area of the bottom of her shoes is 0.5m2. She weighs 150 N. Calculate the pressure exerted by Sarah’s shoes on the ground. [1.5]
11. Would it hurt more if Sarah or John suddenly stamped on your feet according to the
answers from 9 and 10? Why? [1]
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