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Mass, Weight, Density and Pressure quiz for Singapore N(A)-Level Science (Physics) (SEAB 5105/5106) quiz

13questions. Pick an answer and you'll see why right away.

  1. What is the SI unit of weight?

  2. An object has mass 5.0 kg5.0\ \text{kg}. Taking g=10 N kg1g = 10\ \text{N kg}^{-1}, what is its weight?

  3. Why does an astronaut weigh less on the Moon than on Earth?

  4. Density is defined as:

  5. A solid has mass 180 g180\ \text{g} and volume 20 cm320\ \text{cm}^3. What is its density?

  6. How is the volume of an irregular solid usually measured?

  7. Pressure is defined as:

  8. A force of 600 N600\ \text{N} acts on an area of 3.0 m23.0\ \text{m}^2. What is the pressure?

  9. Why does a sharp knife cut more easily than a blunt one?

  10. Pressure in a liquid increases with depth because:

  11. Why do wide snowshoes stop a walker sinking into soft snow?

  12. An object floats in a liquid when:

  13. Which quantity stays the same whether an object is on Earth or the Moon?