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Question 19N.3.SL.TZ0.a

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.SL.TZ0.a
Level SL Paper 3 Time zone TZ0
Command term Suggest Question number a Adapted from N/A
a.
[Maximum mark: 1]
19N.3.SL.TZ0.a

A student investigates how the period T of a simple pendulum varies with the maximum speed v of the pendulum’s bob by releasing the pendulum from rest from different initial angles. A graph of the variation of T with v is plotted.

Suggest, by reference to the graph, why it is unlikely that the relationship between T and v is linear.

[1]

Markscheme

a straight line cannot be drawn through all error bars
OR
the graph/line of best fit is /curved/not straight/parabolic etc.
OR
graph has increasing/variable gradient ✔

NOTE: Do not allow “a line cannot be drawn through all error bars” without specifying “straight”.

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