Which type of lever has an effort arm smaller than the load arm?
Weight multiplier
Force multiplier
Speed multiplier
Work multiplier
The lever acts as a speed multiplier if the effort arm is smaller than the load arm. Wheels and axles are examples of speed multipliers.
Draw a diagram of a lever which is always used as a force multiplier. How is the effort arm related to the load arm in such a lever ?
A movable pulley is used as :
(a) a force multiplier
(b) a speed multiplier
(c) a device to change the direction of effort
(d) an energy multiplier
A machine works as a (i) force multiplier, (ii) speed multiplier. In each case state whether the velocity ratio than or less than 1.
Complete the following sentences :
(a) Mechanical advantage = ............ × velocity ratio
(b) In class II leer, effort arm is ........ than the load arm.
(c) A scissors is a ........ multiplier
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?