CSEC Physics Paper 3 May/June 2011 - Free CXC Past Paper with Answers

u

u

$v$ / cm	$u$ / cm
20	30
40	62
60	87
80	124

Question 2 (19 marks)

(a)

Akil was given a large rectangular block of plasticine and asked to find its density. Describe how he could do this using only a beam balance and a half-metre rule.

[6 marks]

(b)

The graph on page 7 was plotted using Akil's results obtained from several blocks of plasticine. Use the graph to complete Table 2 to show the mass of FIVE different blocks of plasticine and their corresponding volumes.

TABLE 2

	$m$ / g	$V$ / cm $^3$
1.
2.
3.
4.
5.

[5 marks]

(c)(i)

Find the slope of the line.

[5 marks]

(c)(ii)

Use the value of the slope you calculated in (c) (i), to find the relative density of plasticine. [Density of water = $1 \text{ g cm}^{-3}$ ]

[3 marks]

CSEC Physics Paper 3 May/June 2011 Questions

Question 1 (20 marks)

Question 2 (19 marks)

Question 3 (9 marks)