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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
An axe
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उत्तर
An axe – A wedge
संबंधित प्रश्न
State whether the following statement is True or False.
A boy does work while pushing a wall.
Select the correct alternative:
For an ideal machine, the efficiency is
State if the following statement is true or false. Correct the statement if it is false.
There are four types of simple machines.
Can a machine be 100% efficient?
A uniform metre scale is kept in equilibrium when supported at the 60 cm mark and a mass M is suspended from the 90 cm mark as shown in the figure. State with reasons, whether the weight of the scale is greater than, less than or equal to the weight of mass M.
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:
Scissors
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the first order.
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.
 |
 |
 |
| ______ | ______ | _______ |
 |
 |
 |
| ______ | ______ | ______ |
