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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
A slide
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उत्तर
A slide – An inclined plane
संबंधित प्रश्न
What do you understand by a machine?
A machine is 75% efficient’. What do you understand by this statement?
Fig show a system of four pulleys. The upper two pulleys are fixed and the lower two are movable.
(i) Draw a string around the pulleys. Also show the place and direction in which the effort is applied.
(ii) What is the velocity ratio of the system?
(iii) What is the mechanical advantage of the system?
(iv) What assumption do you make in arriving at your answer in part (iii)?
Define mechanical advantage (M.A.) of the machine.
Write an expression for the mechanical advantage of an inclined plane.
Which machine will you use to do the following work? Write their type.
To draw water from a well.
Which machine will you use to do the following work? Write their type.
To hold a papad for roasting it.
Why is this so traveller’s bags have wheels?
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.
