Multiple choice

The radius of the wheel is always ______ the radius of the axle.

  1. equal to

  2. smaller than

  3. larger than

  4. below
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A wheel and axle is a simple machine where a larger wheel is attached to a smaller axle. Because the wheel has a greater radius, it allows for mechanical advantage.

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