DP Physics (last assessment 2024)

Question 19N.3.SL.TZ0.b

Date	November 2019	Marks available	[Maximum mark: 2]	Reference code	19N.3.SL.TZ0.b
Level	SL	Paper	3	Time zone	TZ0
Command term	Determine	Question number	b	Adapted from	N/A

[Maximum mark: 2]

19N.3.SL.TZ0.b

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.

Determine the fractional uncertainty in v when T = 2.115 s, correct to one significant figure.

[2]

Markscheme

$v = 1.15 « m s^{- 1} »$ AND $∆ v = 0.05 « m s^{- 1} »$ ✔

« $\frac{0.05}{1.15} =$ »0.04 ✔

NOTE: Accept 4 %

Syllabus sections

Core

Core » Topic 1: Measurements and uncertainties » 1.2 – Uncertainties and errors

Core » Topic 1: Measurements and uncertainties

Question 19N.3.SL.TZ0.b

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