Advertisements
Advertisements
Question
Name the levers mentioned in the following passage. Identify the fulcrum, load, and effort of each and say which type of lever it is.
Ravi and Savita sit on a seesaw in a garden. In the meantime, a gardener is trimming trees in the garden. He puts the leaves and other garbage in the wheelbarrow. Later, Ravi gets thirsty and he buys lemon sherbet. The sherbet seller cuts the lemon and squeezes it using a lemon squeezer. He puts small pieces of ice in the glass with the help of the tongs.
Advertisements
Solution
Levers mentioned in the passage are:
- Sea-saw: It is a first-order lever.
- Wheelbarrow: It is a second-order lever.
- Lemon squeezer: It is a third-order lever.
- Tongs: It is a fourth-order lever.
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.
Can a machine have an efficiency of 100%? Give a reason to support your answer.
Answer the following.
What is a machine?
Define mechanical advantage (M.A.) of the machine.
Give an example of the following use of a machine to change the direction of force.
Classify the following as a lever, a pulley and an inclined plane:
An axe
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the third order.
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.
A pair of scissors is a _____ multiplier.
