Advertisements
Advertisements
Question
State whether the following statement is True or False.
In an ideal machine, work done on load is equal to the work done by effort.
Options
True
False
Advertisements
Solution
True.
APPEARS IN
RELATED QUESTIONS
When is work said to be done by a force?
What is the principle on which a machine works?
State the kind of lever which always has mechanical advantage less than 1. Draw a labelled diagram of such a lever.
Give an example where a machine is used to obtain gain in speed.
What is the efficiency of an ideal machine?
Establish a relationship between efficiency, M.A., and V.R.
A cook used a ‘fire tong pair’ of length 32 cm. to lift a piece of burning coal of mass 500 g. If he applies his effort at a distance of 8 cm from the fulcrum, what is his effort? Assume friction etc. to be absent. Also, obtain values of the M.A. and the V.R. of this ‘machine’.
Classify the following as a lever, a pulley and an inclined plane:
An axe
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the third order.
Identify and mention the types of simple machines.
 |
 |
 |
| ______ | ______ | _______ |
 |
 |
 |
| ______ | ______ | ______ |
