Question

Answer the
1.
2. What are levers? What are the various types of levers?
3. What is wheel and axle? Give any two examples.
questions.
How are machines helpful to us?
Why do hospitals have a ramp to carry the patients?
6. Why do two pieces of wood bind together with a screw?
6. Write a brief note on the following simple machines.
a. Pulley
b. Screw
c. Wheel and axle d. Inclined plane​

Answer 1

Explanation:

lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. A lever is a rigid body capable of rotating on a point on itself. On the basis of the locations of fulcrum, load and effort, the lever is divided into three types

There are three types of levers: first class, second class and third class. The difference between the three classes depends on where the force is, where the fulcrum is and where the load is.

Answer 2

Answer:

a lever is a simple machine it contains three parts effort, load, fulcrum