some machines are simple while other are complex
Answers
This is because of the structure of that machine
how it was build
please give brilliant answer
Answer:
Simple machines
A machine is a device by which a small applied force can be multiplied to overcome a large resistive force or by which a gain of speed can be obtained. Some common applications of simple machines include lifting heavy loads by ack or pulley, riding a bicycle or cutting with a pair of scissors.
Note: A machine cannot be used as a force multiplier and speed multiplier simultaneously.
Explanation:
Complex Machines :
Complex machines can be created by combining simple machines. They can be as small as a mechanical watch or as large as a construction crane.
Complex machines are also called compound machines. Two or more simple machines work together to form a complex machine. Compound machines can do more difficult jobs than simple machines alone.
Examples of complex machines are bicycle, wheel barrow, crane, car jack, lawn mover etc.