Which is a true statement?
A.Power is the amount of force exerted on an object over a unit of time.
B.An object with more power does the same amount of work in more time.
C.An object with more power does the same amount of work in less time.
D.The work done on an object depends on how much time it takes to do the work.*
i think it is D
another look is in order
think about how power is measured (calculated)
To determine which statement is true, let's analyze each statement and evaluate them.
A. "Power is the amount of force exerted on an object over a unit of time." This statement describes the definition of power, which is correct. Power is the rate at which work is done or the amount of energy transferred or converted per unit of time.
B. "An object with more power does the same amount of work in more time." This statement implies that power and time are inversely proportional, which is not true. In reality, an object with more power can do the same amount of work in less time, as it has the ability to transfer energy or do work more quickly.
C. "An object with more power does the same amount of work in less time." This statement aligns with the correct understanding of power. When an object has more power, it can perform the same amount of work in less time due to its greater ability to do work or transfer energy.
D. "The work done on an object depends on how much time it takes to do the work." This statement is not accurate. The work done on an object is determined by the amount of force applied to it and the displacement that occurs, not the time it takes to do the work. Time is not a direct factor in calculating work.
After evaluating all the statements, we find that statement C, "An object with more power does the same amount of work in less time," is the true statement because it correctly reflects the relationship between power and time.