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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
The wheel of a flagpole
उत्तर
The wheel of a flagpole – A pulley
संबंधित प्रश्न
When is work said to be done by a force?
Why is a machine not 100% efficient?
State the kind of lever which always has mechanical advantage less than 1. Draw a labelled diagram of such a lever.
State whether the mechanical advantage of an inclined plane is equal to 1, less than 2 or greater than 1?
Give scientific reason for the following:
Passengers in a bus are pushed backward when it starts suddenly.
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.
Which machine will you use to do the following work? Write their type.
To lift bricks to the top of a tall building.
______ help us to make work easier.
Rearrange the letters and find out the name of the tool.
R L E V E
| ______ | ______ | ______ | ______ |
The idea of a simple machine originated with the Greek philosopher Archimedes.
