Advertisements
Advertisements
Question
What is a lever?
Advertisements
Solution
A lever is a simple machine consisting of a rigid rod that is capable of turning around a pivot called a fulcrum. It has three parts, namely effort, load, and fulcrum.
- Fulcrum: The rod of the lever rests on it and the lever rotates about it.
- Load: The weight lifted by the liver is called the load.
- Effort: The force applied on the other end of the rod to lift the load is called the effort.
APPEARS IN
RELATED QUESTIONS
What do you understand by a machine?
Name six simple machines. Give an example of each machine.
What care would you take to increase the life span of a machine which you use?
State if the following statement is true or false. Correct the statement if it is false.
There are four types of simple machines.
Answer the following in short.
Mention any two methods by which we can take care of machines.
What is an ideal machine?
Can a machine be 100% efficient?
Which machine will you use to do the following work? Write their type.
To hold a papad for roasting it.
Name some simple machines.
Name a machine for each of the following uses:
- to multiply the force,
- to change the point of application of force,
- to change the direction of force,
- to obtain the gain in speed.
