Advertisements
Advertisements
Question
Draw a diagram of a lever which is always used as a force multiplier. How is the effort arm related to the load arm in such a lever?
Advertisements
Solution
Because the effort arm of a Class II lever is longer than the load arm and the mechanical advantage is always greater than 1, the lever multiplies force.
APPEARS IN
RELATED QUESTIONS
Give one example of a class I lever where mechanical advantage is more than one ?
Class II levers are designed to have ______.
Define Lever
Which type of levers have mechanical advantage always more than 1? Give reasons.
The following belong to which class of lever?
The Physical balance
The following belong to which class of lever?
A fire tongs
The following belong to which class of lever?
Fore-arm
Shears, used for cutting metals and scissors used for cutting clothes are both examples of levers of the first order. However, whereas the shears always have short blades and long handles, the scissors often have blades much longer than the handles. Explain, why this is so?
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.
A lever is used to multiply the force.
