DP Physics (last assessment 2024)

Question 19M.2.SL.TZ2.a

Date	May 2019	Marks available	[Maximum mark: 2]	Reference code	19M.2.SL.TZ2.a
Level	SL	Paper	2	Time zone	TZ2
Command term	Calculate	Question number	a	Adapted from	N/A

[Maximum mark: 2]

19M.2.SL.TZ2.a

The diagram shows the direction of a sound wave travelling in a metal sheet.

Particle P in the metal sheet performs simple harmonic oscillations. When the displacement of P is 3.2 μm the magnitude of its acceleration is 7.9 m s^-2. Calculate the magnitude of the acceleration of P when its displacement is 2.3 μm.

[2]

Markscheme

Expression or statement showing acceleration is proportional to displacement ✔

so « $7.9 \times \frac{{2.3}}{{3.2}} » = 5.7 « {\text{m }}{{\text{s}}^{ - 2}}$ » ✔

Examiners report

This was well answered at both levels.

Syllabus sections

Core

Core » Topic 4: Waves » 4.4 – Wave behaviour

Core » Topic 4: Waves

Question 19M.2.SL.TZ2.a

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