When a top spins, there is a little bit of work being done: The top attempts to maintiain a conservation of angular momentum, which is why as the top slows, it tends to wander more and more across the table.
The way an energy meter works is by counting the amount of electricity that passes from the meter and into the house. This is done by way of a special dial that spins and also rotates numbered indicators on the meter to show how many kilowatts have passed through.
work is being done when you use energy
Yes. The work is being done by whoever is pushing rather then the engine, but work is being done. Any time a force is applied through a distance, work is being done.
work can only be done by a living being
It is work that is being done in a laboratory.
Yes it is.
you know when work is done when it's finished and checked and approved by someone.
Yes it is being done, if the person doing it is doing it as part of a paid job or because they run a business and the letter is needed for the business. If it is being typed for school it may also be considered work, but of a different kind. And from the view of physics, since energy is being expended by the person typing, and perhaps by the machinery being used, work is being done. However, if you are at work and typing a letter to your grandmother, that is not the kind of work you are being paid for and your employer would say work is not being done.
you apply a force to an object
The work being done will be increased if you pick it up instead of dragging it due to the friction.
Of corse,potential energy of pencil is increased.Therefor work done
Moved. Work is defined as a force acting on an object through a distance.