DP Physics (first assessment 2025)

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Question 21M.1A.SL.TZ1.22

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1A.SL.TZ1.22
Level SL Paper 1A Time zone TZ1
Command term Question number 22 Adapted from N/A
22.
[Maximum mark: 1]
21M.1A.SL.TZ1.22

A child stands on a horizontal rotating platform that is moving at constant angular speed. The centripetal force on the child is provided by 

A. the gravitational force on the child.

B. the friction on the child’s feet.

C. the tension in the child’s muscles.

D. the normal reaction of the platform on the child.

[1]

Markscheme

B

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