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How come magnets aren't a source of unlimited energy when the force between them is constant?
Wiki User
∙ 14y ago
When standing in a bus-queue with a constant force between my feet and the ground there is no obvious source of energy, unlimited or finite.
If I fall onto my neighbours shopping bag, crushing her eggs, some energy is supplied but it is limited. As soon as my body is flat on the ground there is no more energy to be had.
If two magnets are held an inch apart, north opposite south and south opposite north, there will be an attractive force. There is potential energy here, and if the magnets are allowed to come together work will be done, energy supplied. This is not unlimited energy; it stops being available as soon as the magnets jam up against each other.
Of course, you can recharge that energy by pulling the magnets apart, but then your muscles will have supplied the energy.
The motto of physics, and of the entire universe, is TANSTAAFL.
There ain't no such thing as a free lunch.
Wiki User
∙ 14y ago
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Is magnetism consider a form of energy?
yes magnet is energy, surprisingly. magnets have at least one north pole and south pole, which make magnets have energy. Magnets provide energy. When you have two magnets and they are pushing against each other, that is how magnets provide energy. Magnets are better for the enviornment, because magnets are pollution-free.
What are some examples of magnetic energy transfer?
the force between the earth and moon, the force between the sun and the earth, the force between the two magnets, the force between iron material and magnet.
What relationship exists between height and potential energy if mass is held constant?
Potential energy is directly proportional to height.
Does changing the number of magnets in a generator affect the amount of energy produced?
Yes
How do you find the kinetic energy of a gas when given molecules and temperature?
The relation between temperature and energy is given by the Boltzmann equation. Boltzmann found a consatn( called the boltzmann constant) that relates the two. That is Energy=k*T
Is magnetism consider a form of energy?
yes magnet is energy, surprisingly. magnets have at least one north pole and south pole, which make magnets have energy. Magnets provide energy. When you have two magnets and they are pushing against each other, that is how magnets provide energy. Magnets are better for the enviornment, because magnets are pollution-free.
What are the differences between magnets and electricity?
magnets are just 2 opposite forces coming together. Electricity is a the flow of energy going from one place to another
How do you get unlimited energy in Mafia Wars MySpace?
UNLIMITED Energy is not possible...
What is planck constant?
Planck's constant describes the ratio between the energy of an electromagnetic wave and the frequency of that wave.
What are some examples of magnetic energy transfer?
the force between the earth and moon, the force between the sun and the earth, the force between the two magnets, the force between iron material and magnet.
What does boundless mean?
Boundless can mean unlimited. You have boundless energy means you have unlimited ammounts of energy.
What do magnets need to be made?
energy
Which idea is centeral to the law of conservation of energy?
The idea is that you can define a quantity, called "energy", that remains constant over time. That is, if no energy escapes from a system, and no energy comes into a system, the total amount of energy will remain constant. Note that there are different types of energy, and you can convert between the different types - but the TOTAL amount remains constant.
Does the energy that Magnets produce ever run out?
Yes magnets get weaker over time.
Is this true or false geothermal energy is an unlimited source of cheap energy?
False the only unlimited source of cheap energy is the sun
Is there unlimited energy on Mafia Wars?
There isn't unlimited energy on Mafia Wars but you can buy energy from the godfather using reward points. If you have enough reward points you can get a lot of refills which would almost be like unlimited energy.
Are magnets used to generate electricity?
Yes, magnets are an integral part of electrical energy generation.
