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Question 19M.2.HL.TZ1.5a.i

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.2.HL.TZ1.5a.i
Level HL Paper 2 Time zone TZ1
Command term Outline Question number a.i Adapted from N/A
a.i.
[Maximum mark: 1]
19M.2.HL.TZ1.5a.i

The moon Phobos moves around the planet Mars in a circular orbit.

(a.i)

Outline the origin of the force that acts on Phobos.

[1]

Markscheme

gravitational attraction/force/field «of the planet/Mars» ✔

Do not accept “gravity”.

Examiners report

This was generally well answered, although some candidates simply used the vague term “gravity” rather than specifying that it is a gravitational force or a gravitational field. Candidates need to be reminded about using proper physics terms and not more general, “every day” terms on the exam.

Syllabus sections