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IB Physics HL S1.1.2 Measurement Variables Questions

Plan HL measurements by identifying required variables, avoiding parallax and placement errors, and selecting accurate readings for a calculation.

Syllabus
First assessment 2025
Course
Physics HL
Level
HL

Exam points

  • Measure required variables with suitable precision.

IB Physics HL S1.1.2 Measurement Variables Questions question 1

[Maximum number: 2]

A student determines the resistivity ρ\rho of a metal that is in the form of a cylindrical wire. The student makes the following measurements:

 Length L of the wire =(462±2)mm\text { Length } L \text { of the wire }=(462 \pm 2) \mathrm{mm}
Readings for the diameter d of the wire:

Readings for the diameter d of the wire:

 Resistance R of the wire =13.7Ω±1.5%\text { Resistance } R \text { of the wire }=13.7 \Omega \pm 1.5 \%

Question (a)

(a)

Suggest suitable instruments for the measurement of

[ 2 ]

Question (i)

(i)

L\quad L

[ 1 ]

Question (ii)

(ii)

d

[ 1 ]
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