Answered

Which of the following is a true statement?
Machines cause work to be more difficult.
Only complex machines can be used to do work.
There is only one type of machine that can use for work.
Machines help make work easier to do.



Answer :

GinnyAnswer

Final answer:

Simple machines reduce input force, making work easier without changing the total amount of work done due to energy conservation laws.


Explanation:

Machines help make work easier to do. Simple machines like levers, pulleys, and gears reduce the input force needed to perform a task, making work easier by changing the amount of force applied or the distance over which the force is exerted. While machines can alter the force required for work, they cannot change the total amount of work done, as energy conservation laws apply.


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