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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
संबंधित प्रश्न
State if the following statement is true or false. Correct the statement if it is false.
There are four types of simple machines.
State the kind of lever which always has mechanical advantage less than 1. Draw a labelled diagram of such a lever.
What is an inclined plane?
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)?
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:
Nutcrackers
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the first order.
Why is this so traveller’s bags have wheels?
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.
