IB Physics SL C.1.5 Energy in Simple Harmonic Motion Question Bank

Practise IB Physics SL C.1.5 by tracking kinetic and potential energy through an oscillation and calculating speed at key positions.

Exam points

Identify kinetic and potential energy at equilibrium and maximum displacement.
Use total energy to calculate speed or kinetic energy at a stated displacement.
Read energy-versus-time graphs across one complete SHM cycle.

[Maximum number: 2]

This question is in two parts. Part 1 is about a thermistor circuit. Part 2 is about vibrations and waves.
Part 1 Thermistor circuit
The circuit shows a negative temperature coefficient (NTC) thermistor X and a $100 \mathrm{k} \Omega$ fixed resistor R connected across a battery.

Figure for Question C.1.5—Energy in SHM question 1 — IB Physics SL

The battery has an electromotive force (emf) of 12.0 V and negligible internal resistance.

D has mass $6.5 \times 10^{-3} \mathrm{~kg}$ and vibrates with amplitude 0.85 mm .

Determine the total energy of D .

correct substitution into $E_{T}=\frac{1}{2} m \omega^{2} x_{0}{ }^{2}$ irrespective of powers of 10 ;

0.14 \text { to } 0.15 \mathrm{~J} ;

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C.1.5—Energy in SHM question 1