Advertisements
Advertisements
Question
Answer the following.
What is a machine?
Advertisements
Solution
Tools and objects that help us to perform the same amount of work with much less effort than if we did the work manually, are called machines.
Example: lever, hammer, knife, etc.
APPEARS IN
RELATED QUESTIONS
State whether the following statement is True or False.
In an ideal machine, work done on load is equal to the work done by effort.
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 Velocity Ratio
How does a machine work?
Give an example of the following use of a machine to change the direction of force.
What is the efficiency of a machine?
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:
A staircase
Which machine will you use to do the following work? Write their type.
To remove the lid of a tin.
The idea of a simple machine originated with the Greek philosopher Archimedes.
