Chapter 7 Work, Energy, and Simple Machines - Part 3

Which simple machine principle is utilized by a steering wheel or door knob?

Type: MCQ • Marks: 1
Which simple machine principle is utilized by a steering wheel or door knob?
Options
A. Lever
B. Wheel and axle
C. Pulley
D. Wedge
Explanation
A wheel and axle multiplies force or rotational speed.
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Class 9th Science (MCQ)

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