anc
(a) What is meant by simple
machines ?
(b) Mention the advantages of using
a machine
(c) What is meant by complex
machines ?
machine modle
4 A lever
15
а a
o load and fulcrum
.
Answers
Answer:
where is the question it is not the format of question
Answer:
A) Simple machine, any of several devices with few or no moving parts that are used to modify motion and the magnitude of a force in order to perform work. ... The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw.
B) The advantages of using a machine are:
More work can be done in lesser time as well as with great accuracy. Less effort has to be applied to accomplish the task.
C) 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.
D) Load : The object which we are lifting. Fulcrum : Point at which the lever is pivoted. Effort : The force applied to make the object move.