CAIE A-Level Physics 17.2.1 Energy Interchange in SHM
Practise tracking kinetic and potential energy through SHM, identifying where each is maximum or minimum at equilibrium and turning points.
- Syllabus
- 2028–2030
- Course
- Physics 9702
- Level
- A2
Exam points
- describe the interchange between kinetic and potential energy during simple harmonic motion
- identify where kinetic or potential energy is maximum or minimum during an oscillation
17.2.1—The interchange between kinetic and potential energy during simple harmonic question 1
A spring is hung vertically from a fixed point. A mass M is hung from the other end of the spring, as illustrated in Fig. 3.1.
Fig. 3.1
The mass is displaced downwards and then released. The subsequent motion of the mass is simple harmonic.
The variation with time t of the length L of the spring is shown in Fig. 3.2.
Fig. 3.2
State:
one time at which the spring has maximum elastic potential energy.
time = s
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