SPM Science 2018, Paper 2 (Question 2)


Question 2:
Diagram 2.1 and Diagram 2.2 show the experiment to study the depth of dent produced when a weight is placed on top of two wooden blocks, X and Y which have different surface area.

Diagram 2.1

Diagram 2.2

(a) Measure the depth of the dent. [2 marks]
(i)  Diagram 2.1 : ………………………… cm
(ii) Diagram 2.1 : ………………………… cm

(b) State the relationship between the surface area of the wooden block and the depth of the dent. [1 mark]

(c) The experiment is repeated using wooden block Z as shown in Diagram 2.3.

Diagram 2.3

Predict the depth of the dent produced when wooden block Z is used. [1 mark]

(d) Diagram 2.4 shows two women are carrying bags which have the same mass.
Write high pressure or low pressure exerted on their shoulders in the space provided. [1 mark]

Diagram 2.4

Answer:
(a)(i) 0.8 ±0.1

(a)(ii) 0.4 ±0.1

(b) The smaller the surface area of the wooden block, the deeper the depth of the dent.

(c) 0.5/0.6/0.7 cm

(d)


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