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प्रश्न
Which machine will you use to do the following work? Write their type.
To lift bricks to the top of a tall building.
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उत्तर
To lift bricks to the top of a tall building, we should use a crane, which is a pulley.
संबंधित प्रश्न
Fill in the blank:
The useful work done by an actual machine is always ............ than the work done on the machine.
Define the term ‘work input’ and ‘work output’ in relation to a machine.
Give an example of the following uses of a machine:
to obtain gain in speed
How does a machine work?
Give an example of the following use of a machine to change the point of application of the force.
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:
An opener
Classify the following as a lever, a pulley and an inclined plane:
A crane
Identify and mention the types of simple machines.
 |
 |
 |
| ______ | ______ | _______ |
 |
 |
 |
| ______ | ______ | ______ |
______ help us to make work easier.
