Advertisements
Advertisements
प्रश्न
Which machine will you use to do the following work? Write their type.
To draw water from a well.
Advertisements
उत्तर
To draw water from a well, we should use a pulley system or wheel-axle.
संबंधित प्रश्न
What is the principle on which a machine works?
Define the term ‘work input’ and ‘work output’ in relation to a machine.
Why is a machine not 100% efficient?
A crowbar of length 120 cm has its fulcrum situated at a distance of 20 cm from the load. Calculate the mechanical advantage of the crowbar.
State whether the mechanical advantage of an inclined plane is equal to 1, less than 2 or greater than 1?
Give an example of the following uses of a machine:
to obtain gain in speed
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.
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the first order.
Name some simple machines.
Simple machines usually exchange a larger force to move a heavy object.
