Advertisements
Advertisements
प्रश्न
Define the term ‘work input’ and ‘work output’ in relation to a machine.
Advertisements
उत्तर
Work input is work done on a machine equal to the effort force times the distance through which the force is applied.
Work output is work that is done by a machine and equals resistance force times the distance through which the force is applied.
For an ideal machine, the work output is equal to the work input, i.e., the efficiency.
APPEARS IN
संबंधित प्रश्न
What do you understand by a machine?
Write an expression for the mechanical advantage of an inclined plane in terms of its length I and vertical height h.
The mechanical advantage of an inclined place is always:
(a) less than 1
(b) equal to 1
(c) greater than 1
(d) nothing can be said
Define mechanical advantage (M.A.) of the machine.
Give an example of the following use of a machine to change the point of application of the force.
Classify the following as a lever, a pulley and an inclined plane:
A needle
Classify the following as a lever, a pulley and an inclined plane:
An axe
Which machine will you use to do the following work? Write their type.
To cut vegetables.
______ help us to make work easier.
Name some simple machines.
