Mass, Weight and Density
Questions
1. What is meant by gravitational field? [1]
2. What is meant by gravitational field strength? [1]
3. A backpack weighs 8.2 N and has a mass of 5000 g on the moon. What is the gravitational
field strength on the moon? [2]
4. If a 700 g pair of running shoes would weigh 11.55 N on Jupiter, what is the gravitational
field strength there? [2]
5. Why does an air bubble rise to the surface of a glass of water? [1]
6. Write two differences between mass and weight. [2]
7. What mass of water in grams will fill a tank 100 cm long, 50 cm wide, and 30 cm high? [3]
8. A sample of lead is found to have a mass of 32.6 g. A graduated measuring cylinder
contains 2.8 cm3 of water. After the lead sample is added to the cylinder the water level
reads 5.7 cm3 Calculate the density of the lead sample. [3]
9. Aluminum is used to make airplanes. Cast iron is used to make weightlifting equipment.
Explain why the densities of these metals make them useful for these purposes? [1]
10. A cup of sugar has a volume of 237cm3. What is the mass of the cup of sugar if the density
is 1.59 g/cm3? [2]
11. A graduated measuring cylinder is filled with water to a level of 40.0 cm3. When a piece of
copper is lowered into the cylinder, the water level rises to 63.4 cm3. If the density of the
copper is 8.9 g/cm3, what is its mass? [3]