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Useful energy is energy that can be converted to any other type of energy. Wasted energy is no longer available to be converted - usually because it got spread out too much, or because it got converted to heat. Heat can be partially, but not completely, converted to other types of energy.
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∙ 11y ago
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Is it always easy to collect wasted energy and use it?
Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.
Is a boiling kettle useful or wasted energy?
Wasted, unless you specifically want to produce a lot of steam.
What percentage of useful energy in US is unnecessarily wasted?
41%-43%
Headphones useful and wasted energy?
usful energy will be that it make sound for the person to hear through it
How do you interpret a sankey diagram?
It is a means of saying how much energy is useful and wasted. Has the appliance represented on the diagram got a high or low efficiency; i.e, is there a larger proportion of useful energy compared to that of wasted energy, making the it more efficient. Can you work out the efficiency as a percentage using your knowledge of the equation, Efficieny = useful energy out/ total energy in?
Is it always easy to collect wasted energy and use it?
Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.
Can energy be regenerated?
According to the Second Law of Thermodynamics, once energy is wasted, it is gone forever - useful energy has become unusable energy.According to the Second Law of Thermodynamics, once energy is wasted, it is gone forever - useful energy has become unusable energy.According to the Second Law of Thermodynamics, once energy is wasted, it is gone forever - useful energy has become unusable energy.According to the Second Law of Thermodynamics, once energy is wasted, it is gone forever - useful energy has become unusable energy.
Is a boiling kettle useful or wasted energy?
Wasted, unless you specifically want to produce a lot of steam.
What you is energy that is not useful?
wasted or non-applied energy. Not sure of your question, poorly worded.
What percentage of useful energy in US is unnecessarily wasted?
41%-43%
Headphones useful and wasted energy?
usful energy will be that it make sound for the person to hear through it
How do you interpret a sankey diagram?
It is a means of saying how much energy is useful and wasted. Has the appliance represented on the diagram got a high or low efficiency; i.e, is there a larger proportion of useful energy compared to that of wasted energy, making the it more efficient. Can you work out the efficiency as a percentage using your knowledge of the equation, Efficieny = useful energy out/ total energy in?
What is the useful energy from an electric drill?
sound, also heat
What role does friction play in energy transformations?
In many cases, energy is wasted due to friction - meaning that useful energy is converted into unusable energy.
What happens to the energy that is not usefully transferred by the solar cells?
It would be wasted,if you are smart you would know that the opposite of useful is un useful
Is heat energy produced with the light energy in a torch?
Yes. The heat and light energy in a torch are separate. From the total energy input to the torch (chemical energy from batteries), Some is useful (the light energy) and some is wasted. (heat/thermal energy) The more efficient an appliance is ,the less energy out of the input energy is wasted. For example, an appliance may be 70% efficient. If it is supplied with 100J (joules) of energy, 70J will be useful and 30J will be wasted. Along with light energy, heat energy is also produced by a torch and is wasted. Heat energy is the most common form of wasted energy in appliances. Other appliances will waste energy in the form of heat, though it may not always be obvious.
When you turn on a radio what type of energy transformation takes place?
electrical/chemical to sounds(useful energy) and heat(wasted energy)
