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Mass, Weight, Density and Pressure quiz for Singapore O-Level Physics (SEAB 6091) quiz

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

  1. Which quantity stays the same when an object is taken from Earth to the Moon?

  2. A block has a mass of 450 g450\ \text{g} and a volume of 150 cm3150\ \text{cm}^3. What is its density?

  3. A force of 80 N80\ \text{N} acts on an area of 0.40 m20.40\ \text{m}^2. What is the pressure?

  4. Why does a sharp knife cut more easily than a blunt one for the same pushing force?

  5. Taking g=9.8 N kg1g = 9.8\ \text{N kg}^{-1}, what is the weight of a 12 kg12\ \text{kg} object?

  6. How does the pressure due to a liquid column change with depth?

  7. What does a mercury barometer measure?

  8. How can you find the volume of an irregularly shaped stone?

  9. An object floats in a liquid. What does this tell you about its density?

  10. Calculate the pressure at the bottom of a tank of water 2.0 m2.0\ \text{m} deep. Take the density of water as 1000 kg m31000\ \text{kg m}^{-3} and g=9.8 N kg1g = 9.8\ \text{N kg}^{-1}.

  11. What is the SI unit of pressure?

  12. Why do wide skis help a person stand on soft snow without sinking?

  13. Two blocks of the same material but different sizes are compared. Which property is the same for both?