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प्रश्न
Which machine will you use to do the following work? Write their type.
To draw water from a well.
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उत्तर
To draw water from a well, we should use a pulley system or wheel-axle.
संबंधित प्रश्न
Define the term ‘work input’ and ‘work output’ in relation to a machine.
Answer the following in short.
Mention any two methods by which we can take care of machines.
Give two examples of inclined plane where it is used to raise a heavy load with less effort ?
Give scientific reason for the following:
Passengers in a bus are pushed backward when it starts suddenly.
Write an expression to show the relationship between mechanical advantage, velocity ratio, and efficiency for a simple machine.
Define mechanical advantage (M.A.) of the machine.
Establish a relationship between efficiency, M.A., and V.R.
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 wedge
Rearrange the letters and find out the name of the tool.
R L E V E
| ______ | ______ | ______ | ______ |
