Question 1
(a) A graph of tensile stress is plotted against tensile strain. What does the slope of the graph represent?
(b) State the energy transformation in shooting a piece of stone using a catapult.
Observation
This questions was quite popular among candidates. In (a), many candidates gave the correct response. In (b), majority of the candidates were able to state the correct response.
The expected response is as stated below:
(a) Slope of the Graph
Young’s Modulus
(b) Energy Transformation