Table of Contents
What is the rate at which work is being done?
Power is the rate at which work is done. It is the work/time ratio. Mathematically, it is computed using the following equation. The standard metric unit of power is the Watt.
Is energy the same as work done?
Work done has the same units as energy – joules. This is because energy is the ability to do work. So you must have energy to do work. Work done is equal to energy transferred.
What is the rate at which work is done or energy is used?
The power is the rate at which work is done (or energy is used). Power is found by dividing work by time. It requires the same amount of work to do these two jobs (see question #23) and the same amount of time. Thus, the power is the same for both tasks.
Which term is the rate at which work is done quizlet?
The rate in which work is done is called energy.
What is work done in energy?
Work is the measure of energy transfer when a force (F) moves an object through a distance (d). Energy transferred and work done are both measured in joules (J).
Why work done is energy?
Energy should be transferred to an object in order to move it. This amount of energy transferred by the force to move an object is called work or work done. Thus, the relation between Work and Energy is direct. That is, the difference in the Kinetic energy of an object is work done by an object.
What happens to the energy as work is done?
When work is done on a system or object, energy is added to it. When work is done by a system or object, it gives some of its energy to something else. By applying a force on the ball over this distance, the hand is doing work on the ball, and the ball gains kinetic energy. This is what gives it speed.
What is work and work done?
Work is done whenever a force moves something over a distance. You can calculate the energy transferred, or work done, by multiplying the force by the distance moved in the direction of the force. Energy transferred = work done = force x distance moved in the direction of the force.
What is work done in electric field?
Work is done in an electric field to move the charge against the force of attraction and repulsion applied to the charge by the electric field. This work done is only dependent on the initial and final position of the charge and the magnitude of the charge.
Is the rate at which work is done or how much work is done in a given amount of time?
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. Remember that work is measured in joules. Power is often measured in joules of work per second.
Is power the rate at which energy is transformed?
Power is the rate at which energy is transformed. The SI unit of power is the watt. Power is the rate at which work is done. The object’s kinetic energy remains the same.