WJEC A Level Physics
WJEC A Level Physics 3.2 Vibrations Exam Questions
Free WJEC A Level Physics exam questions on 3.2 Vibrations, with mark schemes. Covers simple harmonic motion, energy in SHM, damping and resonance.
3.2 Vibrations exam questions
1 question pack of real past exam questions with its mark scheme. Answer every question without notes, then mark your answers line by line against the mark scheme.
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A Level Physics Flashcards
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Pick your exam board, then test yourself with the questions on this page.
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About WJEC A Level Physics 3.2 Vibrations
This topic covers oscillations.
What you need to know
- SHM a = −ω²x; displacement x = A cos ωt.
- Systems Mass-spring T = 2π√(m/k) and pendulum T = 2π√(l/g).
- Energy Exchange between kinetic and potential energy.
- Damping and resonance Light, critical and heavy damping; resonance at the natural frequency.
Common mistakes in 3.2 Vibrations
- Saying acceleration is maximum at equilibrium.
- Forgetting the negative sign.
- Confusing forced and natural frequency.
Try three 3.2 Vibrations exam-style questions
1. Find the period of a 0.20 kg mass on a spring of k = 50 N m⁻¹. (1 mark)
Show the mark scheme answer
0.40 s.
2. State where speed is maximum in SHM. (1 mark)
Show the mark scheme answer
At the equilibrium position.
3. Describe the effect of damping on a resonance curve. (2 marks)
Show the mark scheme answer
The peak amplitude falls (1) and the peak broadens and shifts slightly lower (1).
3.2 Vibrations FAQs
What does Vibrations cover?
SHM, energy, damping and resonance.
Which practical links here?
Investigating a mass-spring system or a pendulum.
Give a useful example of resonance.
MRI scanners or tuning a radio.
Revise this topic with flashcards: A Level Physics Flashcards, with mark scheme answers for Anki and Quizlet.
