Advertisements
Advertisements
प्रश्न
What do you understand by a simple machine?
उत्तर
A simple machine is a lever or pulley by which we can obtain a gain in speed or transmit force to change the direction of force.
APPEARS IN
संबंधित प्रश्न
What is an ideal machine?
Answer the following.
What do you understand by a complex machine?
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.
Classify the following as a lever, a pulley and an inclined plane:
Scissors
Which machine will you use to do the following work? Write their type.
To lift bricks to the top of a tall building.
Which machine will you use to do the following work? Write their type.
To draw water from a well.
Why is this so traveller’s bags have wheels?
Why is this so machines have to be maintained?
Rearrange the letters and find out the name of the tool.
R L E V E
______ | ______ | ______ | ______ |