Question

V. Pick the odd one out. Give scientific reason for your answer.
Force, moment of force, pressure, shortest distance between force, axis of rotation​

Answer 1

The odd one is the Axis of rotation.

Explanation:

• Force, moment of force, pressure, and the shortest distance between force are measurable quantities.

1. Force is measured in Newton (Ex: 50 N)
2. Moment is measured in Newton-metre (Ex: 500 Nm)
3. Pressure is measured in Pascal (Ex: 7000 Pa)
4. Distance is measured in meter (Ex: 10 m)

• However, the Axis of rotation is merely a reference object which is used to measure different quantities.
• For example, we can say that a force of 5N acting a distance of 10m from the pivot of a lever produces a moment of 50Nm about the axis of rotation.

Therefore Axis of rotation is the only reference object among the five and hence it is the odd one.