Advertisements
Advertisements
प्रश्न
Comment on the statement ‘The mechanical advantage of a machine is greater than 1’. Give an example of a lever mechanical advantage is:
(i) greater than 1.
(ii) Equal to 1.
उत्तर
The statement means that the effort required for the machine to overcome a load is less than the load.
(i) The crowbar,
(ii) The beam of the common balance.
APPEARS IN
संबंधित प्रश्न
What care would you take to increase the life span of a machine which you use?
Derive the relationship between mechanical advantage, velocity ratio and efficiency of a machine.
The mechanical advantage of an inclined place is always:
(a) less than 1
(b) equal to 1
(c) greater than 1
(d) nothing can be said
Define Simple machine
Define Velocity Ratio
Define Efficiency
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.
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 cut vegetables.
Identify and mention the types of simple machines.
![]() |
![]() |
![]() |
______ | ______ | _______ |
![]() |
![]() |
![]() |
______ | ______ | ______ |