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प्रश्न
Which machine will you use to do the following work? Write their type.
To draw water from a well.
उत्तर
To draw water from a well, we should use a pulley system or wheel-axle.
संबंधित प्रश्न
What is an ideal machine?
What care would you take to increase the life span of a machine which you use?
Define Efficiency
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:
A wedge
Classify the following as a lever, a pulley and an inclined plane:
A slide
Classify the following as a lever, a pulley and an inclined plane:
Nutcrackers
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the second order.
What is meant by simple machines?
Identify and mention the types of simple machines.
 |
 |
 |
| ______ | ______ | _______ |
 |
 |
 |
| ______ | ______ | ______ |
