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Question
Which machine will you use to do the following work? Write their type.
To remove the lid of a tin.
Solution
To remove the lid of a tin, we should use an opener, which is a second-order lever.
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Select the correct alternative:
For an ideal machine, the efficiency is
What do you understand by a machine?
What care would you take to increase the life span of a machine which you use?
Give an example of the following uses of a machine:
to obtain gain in speed
What is the efficiency of an ideal machine?
How does a machine work?
Classify the following as a lever, a pulley and an inclined plane:
Scissors
Classify the following as a lever, a pulley and an inclined plane:
An opener
Classify the following as a lever, a pulley and an inclined plane:
A knife
Which machine will you use to do the following work? Write their type.
To cut vegetables.
