Quelpr
4 marksMechanical Properties of Materials

CAPE Physics Unit 1 · 2016 · Paper 2 · Question 4(c)(iii)

In the experiment shown in Figure 9, it was found that the reading on the spring balance changed from 2.1 N to 1.8 N as the metal ornament was lowered into the measuring cylinder containing water. The height of water in the cylinder rose from the 50 cm³ mark to the 80 cm³ mark. When the cylinder contained corn oil instead of water, it was found that the height of oil rose by the same amount (as when in water), but the reading on the spring balance changed from 2.1 N to 1.87 N.

Calculate the density of the corn oil.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 4(a)By referring to Figure 7, explain the origin of upthrust and how upthrust determines whether an object will float or sink.[5 marks]
  2. 4(b)(i)Determine the weight of water that would be collected in the beaker.[1 mark]
  3. 4(b)(ii)For (b) (i), calculate the volume of water displaced and hence, determine the density of the stone.[3 marks]
  4. 4(c)(i)State the reason why the height of liquid in the measuring cylinder rose by the same amount.[1 mark]
  5. 4(c)(ii)Outline the reason why the reading on the spring balance was lower when the ornament was immersed in water than when it was immersed in corn oil.[1 mark]

More practice: the rest of this paper · more Mechanical Properties of Materials questions · all CAPE Physics Unit 1 past papers