Physics 9702,35 Oct Nov 2024 | Cambridge AS - A Level Past Papers With Mark Scheme

1. Experimental investigation of moments: balancing a meter rule with known masses, varying mass positions, measuring distances, plotting graphs of distance ratios, and calculating gradient and intercept.

2. Mathematical modeling of equilibrium: verifying the equation \\( s/a = P/a + Q \\), determining constants \\( P \\) and \\( Q \\), calculating the reaction force constant \\( R \\) using given parameters.

3. Measurement and precision: determining rod length, diameter, and volume, justifying significant figures, estimating percentage uncertainty in measurements.

4. Oscillatory motion of a suspended rod: measuring initial and displaced separation of rods, calculating spring constant, recording oscillation periods for different masses.

5. Validation of theoretical relationships: verifying the equation \\( \\rho V = kT^2/4\\pi^2 - M \\) using experimental data, comparing calculated density values, assessing uncertainty impact.

6. Error analysis and improvements: identifying experimental limitations in measuring distances, mass positioning, and oscillation timing, suggesting procedural and equipment improvements for accuracy.