Physics (AS & A Level) · Oct / Nov 2025 · Paper 12 · Question 4

A ball is released from rest. The distance the ball falls and the time the ball takes to fall that distance are both measured. The percentage uncertainty in the measured distance is negligible. The percentage uncertainty in the measured time is 4%. The distance and the time are then used to calculate the acceleration of free fall. Air resistance is negligible. What is the percentage uncertainty in the calculated value of the acceleration of free fall?

1. A2%
2. B4%
3. C8%
4. D16%

As printed in the paper