How does increasing time affect power?

How does increasing time affect power?

If work is done faster, power is higher. If work is done slower, power is smaller. Since work is force times displacement (W=F*d), and velocity is displacement over time (v=d/t), power equals force times velocity: P = F*v.

What happens to power as the work done increases?

When power level increases, time decreases. The same amount of work is done over a shorter period, so the power goes up.

Does power increase when work done faster?

Power can be calculated from work and time. If you lift a book one meter, you do the same amount of work whether you lift the book quickly or slowly. However, when you lift the book quickly, you increase your —the rate at which you do work.

How does power vary with time?

Power can be expressed as P = Work/Change in Time, instead of P = Change in Energy/Change in Time, because the change in energy is basically the work done. In both cases you end up with joules / time.

How is work affected by power?

Work is the energy needed to apply a force to move an object a particular distance, where force is parallel to the displacement. Power is the rate at which that work is done.

Why does power depend on time?

Power is the rate at which work is performed determined by how long it takes to perform the work. Power is then directly proportional to the work done and inversely proportional to the time to do the work.

How does work affect power?

The point is that for the same amount of work, power and time are inversely proportional. The power equation suggests that a more powerful engine can do the same amount of work in less time. That is, some people are capable of doing the same amount of work in less time or more work in the same amount of time.

How do you increase the work done by increasing the force or by increasing the distance?

Contrary to popular belief, machines do not increase the amount of work that is done. They just change how the work is done. Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or changing the direction in which the force is applied.

When work is done fast more power is used True or false?

If two people do the same job, then they’re doing the same amount of work. The person who does it fastest generates more power. g. FALSE – A N•m is a Joule and that is a unit of work (not power).

Is work is done at a faster rate than?

Power is the rate at which work is done. In this case, rate means per unit of time. Power = work/ time. If work is done faster, power is higher.

How is work related to power and energy?

Force exerted on an object over a distance does work. Work can increase energy, and energy can do work. Power is the rate at which work is done.

How do you find power with work and time?

The formula of power, work, and time can be derived from each other as:

1. Power: P = W/T.
2. Work: W = P*T.
3. Time: T = W/P.
4. Where, P = Power, W = Work, T = Time.

Which is more work per time or power per time?

Power is work per time. That is, if you do the same amount of work in a shorter time, it takes more power. Two cars might weigh the same and they might climb the same hill, hence they do the same amount of work.

How does increasing voltage or current affect the power?

The power will remain the same for a particular load as we are not changing the load. so if we increase the voltage, the current will decrease to make the net power consumed by the load same as before. If we increase the current, the voltage will decrease for making the power same.

How is the power of a work done calculated?

Because power is a measurement of how much work is done in a given time, power can be calculated based on work and time. To find power, divide the amount of work by the time it takes to do the work. Power = W tim or e k

How is power related to force and work?

Computing the amount of power you develop: Power is the amount of work you do divided by the amount of time it took to do the work. The work you did in climbing the stairs is the force you applied (your weight) times the distance you moved upward (the height of the stairs.) That is: