Question

Simple machines help us to do work more:
(A) easily
(B) quickly
(C) none
(D) both A and B

Answer 1

Hint
Humans have developed some machines or instruments which help to make the complicated work very easy, from the ancient age to nowadays, new devices or machines are invented to reduce the work of the human. And helps the humans to work easy and quick.

Complete step by step answer
The work is defined as the amount of force acting on the object in some direction of motion, the simple machines help the humans to work easier by transferring the force from one place to another place, helps to change the direction of force, helps to change the magnitude of the force etc. the simple machines means that there is no complex construction of the machines, it consists very few countable parts which help to lift some object or move the object like this.
Some examples of the simple machines are, wheel and axle, from the ancient age the wheel plays the major role and helps the humans in many applications. For transportation the wheel is required, if we need to change the place of the heavy material, the wheels are used. The best example for the wheel and axle is the bullock cart. The two wheels are connected by the axle, and minimum force is required to move the cart even if the material is in the cart. By comparing the force required to move some material, if the material is in ground greater force is required to move the object, but the same material is in the bullock cart, the force which required to move the cart is less than the force required when the material is in ground. Thus, the simple machines help us to do the work easier and quicker.
Hence, the option (D) is the correct answer.

Note
As we heard, in the very ancient age the peoples or tribal peoples were more struggling to move the heavy rocks and some other heavy material. In that age they use tree logs as the roller, they place the tree logs continuously and place the heavy material on the logs, then the force required is somewhat less to move the material.