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Question 19M.1.SL.TZ2.5

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1.SL.TZ2.5
Level SL Paper 1 Time zone TZ2
Command term Question number 5 Adapted from N/A
5.
[Maximum mark: 1]
19M.1.SL.TZ2.5

An object has a weight of 6.10 × 102 N. What is the change in gravitational potential energy of the object when it moves through 8.0 m vertically?

A. 5 kJ

B. 4.9 kJ

C. 4.88 kJ

D. 4.880 kJ

[1]

Markscheme

B

Examiners report

At SL, more candidates chose C with B the second most popular response. This question was about significant figures and candidates should be reminded that on the multiple choice paper they are not expected to perform detailed calculations. In this case 6.10 (to 3 sig figs) times 8.0 (to 2 sig figs) produces an answer to 2 sig figs giving B as the correct response. All answers are equivalent from a numerical point of view with the difference being the number of sig figs used.

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