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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
A slide
उत्तर
A slide – An inclined plane
संबंधित प्रश्न
A machine is 75% efficient’. What do you understand by this statement?
Derive the relationship between mechanical advantage, velocity ratio and efficiency of a machine.
The diagram below shows a wheel barrow. Mark position of fulcrum F and draw arrows to show the directions of load L and effort E. What class of lever is the whell barrow? Give one more example of the same class of lever.
Give two examples of inclined plane where it is used to raise a heavy load with less effort ?
Can a machine be 100% efficient?
How does a machine work?
Classify the following as a lever, a pulley and an inclined plane:
The wheel of a flagpole
Classify the following as a lever, a pulley and an inclined plane:
A knife
The idea of a simple machine originated with the Greek philosopher Archimedes.
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.
