DP Physics (first assessment 2025)

Question EXE.2.SL.TZ0.12a

Date	Example questions Example questions	Marks available	[Maximum mark: 2]	Reference code	EXE.2.SL.TZ0.12a
Level	SL	Paper	2	Time zone	TZ0
Command term	Show that	Question number	a	Adapted from	N/A

[Maximum mark: 2]

EXE.2.SL.TZ0.12a

(a)

Show that $k = \frac{1}{G M}$ .

[2]

Markscheme

Equates centripetal force (with Newton’s law of gravitation $m r ω^{2} = \frac{G M m}{r^{2}}$ )

$T = \frac{2 π}{ω}$ ✓

Uses both equation correctly with clear re-arrangement ✓

Syllabus sections