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Question 18M.3.SL.TZ2.a.i

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.3.SL.TZ2.a.i
Level SL Paper 3 Time zone TZ2
Command term Outline Question number a.i Adapted from N/A
a.i.
[Maximum mark: 1]
18M.3.SL.TZ2.a.i

A wheel of mass 0.25 kg consists of a cylinder mounted on a central shaft. The shaft has a radius of 1.2 cm and the cylinder has a radius of 4.0 cm. The shaft rests on two rails with the cylinder able to spin freely between the rails.

M18/4/PHYSI/SP3/ENG/TZ2/06

The stationary wheel is released from rest and rolls down a slope with the shaft rolling on the rails without slipping from point A to point B.

M18/4/PHYSI/SP3/ENG/TZ2/06.a

The moment of inertia of the wheel is 1.3 × 10–4 kg m2. Outline what is meant by the moment of inertia.

[1]

Markscheme

an object’s resistance to change in rotational motion

OR

equivalent of mass in rotational equations

 

OWTTE

[1 mark]

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