Advertisements
Advertisements
Question
Which class of lever found in the human body is being used by a boy when he raises the weight of his body on his toes?
Advertisements
Solution
Class II lever.
RELATED QUESTIONS
Define Lever
Give three examples for leavers of 1st order.
The following belong to which class of lever?
The Physical balance
The following belong to which class of lever?
Wheelbarrow
The following belong to which class of lever?
Nutcracker
The following are an example of levers. State the class of lever to which each one belongs giving the relative positions of Load (L), Effort (E), Fulcrum (F):
(i) Scissors (ii) Sugar tongs (iii) Nutcracker (iv) Pliers.
The diagram below shows a lever in use.
(i) To which class of lever does it belong?
(ii) If FA = 40 cm, AB = 60 cm, then find the mechanical advantage of the lever.
What is a lever?
The diagram shows the use of a lever.
- State the principle of moments as applied to the above lever.
- Which class of lever is this? Give an example of this class of lever.
- If FA = 100 cm, AB = 90 cm, calculate the minimum effort required to lift the load.
State the types (or kinds) of lever, and give two examples of each kind.
