b
Alicia is correct because simple machines change the amount of work required, but still require work. Simple machines only assist in making work easier by changing the direction, magnitude, or point of application of a force applied to the machine. They do not do work on their own.
Taylor says he likes using simple machines because they do his work for him. Alicia says that simple machines only help do the work, but do not do the work for you. Which best describes who is correct?
a
Taylor is correct because simple machines are always used in factories and don't require work.
b
Alicia is correct because simple machines change the amount of work required, but still require work.
c
Alicia is correct because simple machines use electricity to help perform jobs.
d
Taylor is correct because simple machines are always used without anyone touching them.
1 answer