Advertisements
Advertisements
Question
Fill in the blank:
The useful work done by an actual machine is always ............ than the work done on the machine.
Advertisements
Solution
The useful work done by an actual machine is always less than the work done on the machine.
APPEARS IN
RELATED QUESTIONS
Select the correct alternative:
For an ideal machine, the efficiency is
Define the term ‘work input’ and ‘work output’ in relation to a machine.
What care would you take to increase the life span of a machine which you use?
State the kind of lever which always has mechanical advantage less than 1. Draw a labelled diagram of such a lever.
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
What is an ideal machine?
Write an expression for the mechanical advantage of an inclined plane.
How does a machine work?
Which machine will you use to do the following work? Write their type.
To remove the lid of a tin.
Name a machine for each of the following uses:
- to multiply the force,
- to change the point of application of force,
- to change the direction of force,
- to obtain the gain in speed.
