IBDP Physics- A.3 Work, energy and power- IB Style Questions For SL Paper 1A -FA 2025

1. Calculate Energy Stored:
The potential energy stored in a spring extended by \(x\) is given by \(E_p = \frac{1}{2}kx^2\).

2. Define Power:
Power is the rate at which work is done or energy is transferred.
\(P = \frac{\text{Energy}}{\text{Time}}\)

3. Calculate Average Power:
As the spring returns to its original length, it releases this stored energy over time \(\Delta t\).
\(P = \frac{\frac{1}{2}kx^2}{\Delta t} = \frac{kx^2}{2\Delta t}\).
✅ Answer: (C)