Moments, Levers And Gears (physics Only) (GCSE Physics)

When two gears mesh directly (single pair), how does the direction of rotation of the driven gear compare with the driver?

If power transmission through gears is ideal (no losses), which quantity remains the same in the driver and driven shafts?

A force of 10 N is applied at a perpendicular distance of 0.40 m from a pivot. What is the moment (turning effect) of this force about the pivot?

What are the SI units of a moment (turning effect)?

A wheelbarrow provides a mechanical advantage because:

A driver gear has radius 0.05 m and the force at its rim is 12 N. What torque does it apply to the axle?

A 6 N force produces a moment of 18 N m about a pivot. What is the perpendicular distance from the pivot to the line of action of the force?

Two identical gears A and C are connected by an intermediate gear B (an idler). How does the presence of the idler affect the overall gear ratio between A and C?

A gear train: driver gear with 12 teeth drives gear with 36 teeth, which drives a final gear with 6 teeth meshed with the 36-tooth. If the driver rotates at 120 rpm, what is the speed of the final gear?

Which statement defines rotational equilibrium for a rigid object around a pivot?

Which one of these will NOT change the moment produced by a force about a pivot?