Give one example of a machine that is used to multiply force.
Name a machine for each of the following use :
(a) to multiply the force,
(b) to change the point of application of force,
(c) to change the direction of force,
(d) to obtain the gain in speed.
When does a machine act as (a) a force multiplier, (b) a speed multiplier? Can a machine act as a force multiplier and a speed multiplier simultaneously?
Give two examples of when a machine is used to apply the force at a convenient point.
Give a few examples where the concept of an inclined plane is used to multiply force.