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First of all, let's get one important concept established. Energy is energy, and there is only one kind of energy. The only difference between what some people call positive or negative energy is point of reference. If the energy is coming towards you then it is called positive, and when it is moving away from you it is called negative. If the work that is done is constructive, then people tend to call it positive energy. If the outcome is destructive, they call it negative. In both cases, the same energy was used, just the results differed.
Here's an example. If you build a house, it is a positive result. But if you tear it down, it is negative. You still used you muscles and tools to do it, just the final result was different. But, now if you tear down an old building and erect a bigger and better new one, then was the tearing down negative or positive? See what I mean?
The same thing happens to electricity in circuit boards. They get bigger and smaller, diverted into different directions, stored and released, over and over again. The most important thing is what it made when it finished. If it made your mp3 player play your favorite tune, then you'd probably say positive. But if it didn't work, then somewhere the circuit is not directing the electrical energy to a positive result, music, but instead no music. Again, the same energy is being used, just the result may not be as 'positive.'
What else can I help you with?
Is the work done on a system positive or negative?
The work done on a system is positive when energy is added to the system, and negative when energy is removed from the system.
Work done on the system is?
work done on the system: when a surrounding does work on the system the total energy increases so work done is positive..........
What would happen to an object's velocity if positive work was done on an object?
If positive work is done on an object, its velocity will increase. This is because work done on an object transfers energy to the object, which can result in an increase in its kinetic energy and thus its velocity.
When is a thermodynamic work said to be positive?
A thermodynamic work is said to be positive when the system does work on the surroundings. This occurs when energy is transferred from the system to the surroundings, resulting in a decrease in the internal energy of the system.
Does the work-kinetic energy theorem hold for both positive and negative work?
Yes, the work-kinetic energy theorem holds for both positive and negative work. Positive work increases the kinetic energy of an object, while negative work decreases it. The theorem states that the net work done on an object is equal to the change in its kinetic energy.
Is the work done on a system positive or negative?
The work done on a system is positive when energy is added to the system, and negative when energy is removed from the system.
Work done on the system is?
work done on the system: when a surrounding does work on the system the total energy increases so work done is positive..........
What would happen to an object's velocity if positive work was done on an object?
If positive work is done on an object, its velocity will increase. This is because work done on an object transfers energy to the object, which can result in an increase in its kinetic energy and thus its velocity.
When is a thermodynamic work said to be positive?
A thermodynamic work is said to be positive when the system does work on the surroundings. This occurs when energy is transferred from the system to the surroundings, resulting in a decrease in the internal energy of the system.
Does the work-kinetic energy theorem hold for both positive and negative work?
Yes, the work-kinetic energy theorem holds for both positive and negative work. Positive work increases the kinetic energy of an object, while negative work decreases it. The theorem states that the net work done on an object is equal to the change in its kinetic energy.
What happens to the kinetic energy of a moving object if the network done is positive?
That really depends on the situation. Work done on an object may increase its kinetic energy; but it may also just increase its potential energy (e.g., when pushing something upwards against the force of gravity).
Work done in lifting and lowering an object?
The work done in lifting an object is positive, as energy is input to move it against gravity. The work done in lowering an object is negative, as the object is moving in the direction of the force of gravity, and energy is being released. Overall, the work done will depend on the distance the object is lifted or lowered and the force applied.
Is the work done by the system is considered as positive or on the system is considered as positive?
Work done by the system is considered as PositiveWork done on the system is considered as Negative
How do you determine a work done is positive sign or negative sign?
If work is done on the system then it has a negative sign. If work is done by the system then it has a positive sign.
What is positive work done?
POSITIVE work is done when the direction of displacement and gravitational force is same. This makes an angle of zero degrees. Fd?FScos0 equals +1. The work done is positive.
When is work done positive?
There are two conventions. One says that work done on the system is positive, the other says that work done by the system is positive. Chemists tend to use the former, physicists tend to use the latter... one of several reasons it's not a good idea to take thermodynamics in chemistry and physics at the same time.
When swimming work done is positive or negative?
Positive.
