The length of the load arm of a lever is 6 m long and the effort arm is 3 m long. What is the effort required to lift a load of 40 N ?
Tick the most appropriate answer.
If the effort lies between the fulcrum and the load, then the lever belongs to which class ?
- Class I
- Class II
- Class III
- Class IV
State if the following statement is true or false.
The load and effort can act at a single point in a lever.
Select the correct alternative :
Mechanical advantage of a machine is defined as:
- Load X Effort
- Load / Effort
- Load + Effort
- Effort / Load
Draw simplified diagrams by clearly showing the position of load, effort and fulcrum for Class I, Class II and Class III levers.