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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
A staircase
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उत्तर
A staircase – An inclined plane
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संबंधित प्रश्न
When is work said to be done by a force?
Name six simple machines. Give an example of each machine.
Give a reason for the following.
Machines are able to make our work convenient.
Can a machine be 100% efficient?
Define velocity ratio.
Can a simple machine act as a force multiplier and a speed multiplier at the same time?
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.
Classify the following as a lever, a pulley and an inclined plane:
A crane
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the third order.
Name a machine for each of the following uses:
- to multiply the force,
- to change the point of application of force,
- to change the direction of force,
- to obtain the gain in speed.
