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Can you change potential energy of a body without doing any work on it?
Faizanahemad
No, the energy has to come from somewhere. In a mechanical case, like lifting a weight or compressing a spring, the work done is Force x Distance, and this goes to increasing the object's potential energy. In an electrical case, such as charging a capacitor, the energy put in is the watts of the supply times the time it applies.
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∙ 14y ago
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What is energy about?
Energy is often defined as the potential for doing work
What cause an object to have potential energy?
Potential energy is stored energy capable of doing work. Since energy is general comes from the food we eat, so does potential energy.
How might the potential energy of water in a dam be increased?
By filling the dam with more water, because by doing that it gains more gravitational potential energy which is the same as potential energy.
How does kinetic energy and potential energy switch?
work=change in kinetic energy, doing work on an object by moving it up increases that object's potential energy because it has the POTENTIAL to fall due to gravity. kinetic energy is lost in the movement of the object. However, throughout an entire closed system, the total energy in joules (or kinetic enery plus potential energy) does remain constant. this is useful because the initial energy and the final energy most be equal, and if thats true, then initial kinetic energy plus initial potential energy must equal final kinetic energy plus final potential energy. does that help?
Is ethanol potential or kinetic?
Since ethanol by itself is a liquid that is doing nothing, it is POTENTIAL energy. You need to take some action to extract the energy.
What is the diffrence between kinetic energy and potential energy?
kinetic energy is energy being exerted like while your running or jogging and potential energy is energy that is being stored up while doing nothing such as standing or staring your building up potential energy
What is the differences between energy types?
Potential energy and Kinetic energy. Potential energy comes in forms that are stored, including - Chemical, Gravitational, Mechanical and Nuclear. Kinetic energy forms are doing work - Like electrical, heat, light, motion and sound. Difference between them both are, Potential energy can be stored and Kinetic energy is already doing work and can't be stored. Hope this helps =)
What is the scientific name of the ability to do work?
Energy is defined as the capacity to do work. The word "able" applies to a capable of doing work, or doing it correctly.
Why when you push an object across a desk the work done is not equal to the change in gravitational potential energy?
In this case, you are not doing work against the force of gravity, but against the force of friction.
When an object is lifted where does the potential energy come from?
Elastic potential energy can be found when you are stretching a spring. Any kind of elastic energy can be found when you are stretching or compressing an object.
Which type of energy is associated with following water it is mechanical or kinetic or potential?
Water, when stationary, has potential energy. When it's moving, it has kinetic energy. Take the water in a reservoir for example. held back by the dam, it has potential energy - because, although it's not doing anything, it has the 'potential' to move. When it's released to turn turbines, it has kinetic energy because it's moving.
What is gravataional energy?
Answer: it is the force that pulls you down when you jump Answer: When you push an object up, you are doing work (transferring energy) against the gravitational pull. This energy is stored in the object (or, more precisely, in the system Earth-object), as potential energy - more precisely, as gravitational potential energy. Do some reading on "potential energy" for more details.
