DP Physics (first assessment 2025)

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Question EXE.1A.HL.TZ0.10

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Date Example questions Example questions Marks available [Maximum mark: 1] Reference code EXE.1A.HL.TZ0.10
Level HL Paper 1A Time zone TZ0
Command term Question number 10 Adapted from N/A
10.
[Maximum mark: 1]
EXE.1A.HL.TZ0.10

An object with a moment of inertia of 12 kg m2 is rotating about its axis of rotation with an angular speed of 15 rad s−1. A torque is applied to the object so that its angular speed increases to 50 rad s−1.

What angular impulse acted on the object?

A.  420 kg m s−1

B.  780 kg m s−1

C.  390 kg m s−1

D.  210 kg m s−1

[1]

Markscheme

A

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