describe simple machine in your own words in 100+ words
no copied answer
Answer by only Jishnumukherjee002 and RealPoet
Answers
Simple Machine:
We use many types of tools or devices to perform many types of work in our daily life. For example, we use a shovel to transfer sand from one place to another, a spade to dig, a broom to sweep and a hammer to break stone into peebles. A plank is used for loading onto and unloading from trucks. All of these simple devices are used to do our work in a convenient way. Sometimes, a single instrument is also used in different ways. For example, a hammer is used to break stone into peebles, to pass a nail into wood and to beat an iron rod into a sheet. The same hammer can be used to pass a nail out of a wooden block.
The devices or simple instruments which are used to do our work in a convenient way are called simple machines. They make our work easier in the following ways:
✪ They transfer effort from one point of the machine to another point.
✪ They magnify the applied effort.
✪ They increase the speed of doing work.
✪ They change the direction of force.
Types Of Simple Machine:
On the basis of the structure of simple machines, they are classified into the following six types:
✪ Lever
✪ Wheel and axle
✪ Pulley
✪ Inclined plane
✪ Screw
✪ Wedge
Answer:
Simple machine is defined as a device which either changes the direction of effort, or reduces the effort to overcome the load , or acts as a speed multiplier .
Explanation:
The simple machine has several advantages . The first advantage is that it acts as a force multiplier . When we apply a small force , we can easily displace a particular thing which we want and this can be achieved by machines .
The second advantage of a machine is that it acts as a speed multiplier and for obtaining a gain in speed .
The load is the force which the machine overcomes . The effort is the force exerted on the machine to overcome the object.
The machine helps in applying the force in the desired direction which is easy for us .
The machine has the fulcrum which has a point to support the machine .
The ratio of load and effort is termed as MA ( Mechanical Advantage ) .
The ratio of displacement of effort and displacement of load is called VR ( Velocity Ratio ) .
If the Mechanical Advantage is more than 1 , then the Load is more than Effort .
If it is less than 1 , then the Effort is more than load .
Else if Mechanical Advantage is equal to 1 , Effort is equal to Load .
The simple machine has several applications in our daily lives and they are used for several things ranging from transportation to going to bed for sleeping , etc .
The ideal machine is a machine which has equal mechanical advantage and velocity ratio .
The machine in reality cannot be ideal because there is loss of energy due to friction .
The ideal machine has efficiency 100 % . The simple machine has efficiency less than 100 % .