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Question
Name a machine which is used to multiply speed ?
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Solution
Multiply speed: gear system or class III lever.
RELATED QUESTIONS
With reference to the terms Mechanical Advantage, Velocity Ratio and efficiency of a machine, name and define the term that will not change for the machine of a given design.
What is the principle of an ideal machine?
Draw a diagram to show how a single pulley can be used so as to have its ideal M.A= 2.
State the incorrect statement:
The diagram below shows a claw hammer used to remove a nail :

(i) To which class of lever does it belong ?
(ii) Give one more example of the same class of lever mentioned by you in (i) for which the mechanical advantage is greater than one.
Give an example for each of the following uses of a machine:
to obtain gain in force,
Stat the principle of an ideal machine.
Complete the following sentence :
Mechanical advantage = ___________ × velocity ratio
Complete the following sentence :
A scissors is a ___________ multiplier.
What is a machine?
