IBDP Physics SL Predicted Paper 1B - IB Physics Predicted Papers

Questions

Question 1

A ball performs vertical oscillations with displacement $x$ about the equilibrium position $x = 0$ . The displacement–time graph from $t = 0.0\ \mathrm{s}$ to $0.60\ \mathrm{s}$ shows damped oscillations.

The steady-state amplitude $A$ of a driven oscillator is measured as the driving frequency $f$ is varied. The amplitude–frequency graph has a clear peak near $2\ \mathrm{Hz}$ .

Part a

[2]

State what is meant by the period and the amplitude of an oscillation.

Part b

[2]

Determine the period $T$ of the motion using the graph. Show how the value is obtained from the graph.

Part c

[2]

Using the graph, estimate the resonant (natural) frequency $f_0$ and the full width at half maximum $\Delta f$ . Hence calculate the quality factor $Q = \dfrac{f_0}{\Delta f}$ .

Part d

[1]

The amplitude on the displacement–time graph decreases with time. Explain this decrease in terms of forces and energy.

[7]

Question 2

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IBDP Physics SL Predicted Paper 1B sample

Questions

Question 1

Question 2

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