Advertisements
Advertisements
Question
State if the following statement is true or false. Correct the statement if it is false.
Work done by a machine is always more than the work done on a machine.
Options
True
False
Solution
False.
Work done by a machine is always less than the work done on a machine.
APPEARS IN
RELATED QUESTIONS
What do you understand by a machine?
What is the principle on which a machine works?
Define the term ‘work input’ and ‘work output’ in relation to a machine.
State whether the mechanical advantage of an inclined plane is equal to 1, less than 2 or greater than 1?
Write the relation between mechanical advantage, velocity ratio and efficiency.
Define mechanical advantage (M.A.) of the machine.
A simple machine enables us to lift a load of 10,000 N by the application of an effort of 500 N. However, when the point of application of the effort moves through 2.5 m, the load gets raised through 10 cm only. What are the values of the:
(i) M.A.
(ii) V.R. and
(iii) Efficiency of the machine?
Classify the following as a lever, a pulley and an inclined plane:
A crane
Classify the following as a lever, a pulley and an inclined plane:
A knife
Which machine will you use to do the following work? Write their type.
To remove the lid of a tin.