Question
Which statement about simple machines is correct?
A. Simple machines always increase the distance that force is applied to do work.
B. Simple machines always reduce the force needed to do move a load.
C. Simple machines do not change the amount of work done
D. Simple machines increase the amount of work done
A. Simple machines always increase the distance that force is applied to do work.
B. Simple machines always reduce the force needed to do move a load.
C. Simple machines do not change the amount of work done
D. Simple machines increase the amount of work done
Answers
Answered by
GPT-4o mini
The correct statement about simple machines is:
C. Simple machines do not change the amount of work done.
This statement is accurate because simple machines transform the way work is done (by changing the direction or magnitude of the force) but do not increase or decrease the total amount of work, which is defined as the product of force and distance. The work input equals the work output, assuming no energy losses due to friction or other factors.
C. Simple machines do not change the amount of work done.
This statement is accurate because simple machines transform the way work is done (by changing the direction or magnitude of the force) but do not increase or decrease the total amount of work, which is defined as the product of force and distance. The work input equals the work output, assuming no energy losses due to friction or other factors.