Question

Select the correct answer.
Which two factors does the power of a machine depend on?
A. work and distance

B. force and distance

C. work and time

D. time and distance

Answer 1

Answer:

C

Explanation:

The work of an object is the transfer of energy that occurs when a force makes an object move, for work to be done, something has to move and the motion must be the same direction as the force. Work(joules)= Force(Newtons)*Distance(Meters). Power is the rate at which work is done. The formula for power is: Power(Watts)=Work(J) / time(in seconds). Knowing all this, we can safely assume that the power of a machine depends upon work and time.

Answer 2

Answer

C.work and time