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Date May 2019 Marks available 1 Reference code 19M.1.HL:.tz0.29
Level Higher Level Paper Paper 1 Time zone time zone 0
Command term Question number 29 Adapted from N/A

Question

What is friction?

I.   A force that acts parallel to two surfaces in contact
II.  A force that opposes relative motion
III. A force that acts through the centre of mass

A.  I only

B.  I and II only

C.  II and III only

D.  I, II and III

Markscheme

B

Examiners report

Mid-difficulty question. Answer A was the main distractor.

Syllabus sections

Topic 10: Friction and drag » 10.1. Friction and drag » 10.1.1. Describe friction.
Topic 10: Friction and drag » 10.1. Friction and drag
Topic 10: Friction and drag

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