DP Physics (first assessment 2025)

Question 23M.2.HL.TZ1.6bii

ii.

[Maximum mark: 2]

23M.2.HL.TZ1.6bii

(ii)

The mass of the charge q is 0.025 kg.

Calculate the angular frequency of the oscillations using the data in (a)(ii) and the expression in (b)(i).

[2]

Markscheme

ω = $\sqrt{\frac{32 k Q q}{m D^{3}}}$ OR use of F =mω²r OR F = 1.33x OR a = 53.3x ✓

« $\sqrt{\frac{32 \times 8.99 \times 10^{9} \times 2.0 \times 10^{- 3} \times 4.0 \times 10^{- 9}}{0.025 \times 1 . 2^{3}}}$ » = 7.299 «s⁻¹»

Syllabus sections