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Can a given amount of mechanical energy be converted into heat energy?
Wiki User
∙ 11y ago
In any heat engine there is always some rejection of heat to the environment. Thus an internal combustion engine, as in a car, rejects heat in its exhaust gases, and also loses heat into its radiator. An aircraft jet engine rejects heat at its exhaust, it is impractical to extract more energy from this. In a power plant the steam turbine rejects heat to its condenser in order to condense the exhaust steam to water for feeding back to the boilers.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoYes, use a Flamethrower or Grenade.
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The first law of thermodynamics is an expression of the law of conservation of energy and identifies heat transfer as a form of energy transfer. The second law limits the efficiency of engines. While mechanical energy can always be converted entirely into heat, heat cannot be converted entirely into mechanical energy. Attempts to convert heat completely into energy always produce some waste heat.
Wiki User
∙ 11y agoYes. In fact, sooner or later, it usually WILL be converted to heat energy. Converting energy the other way is not possible - if you have a given amount of heat energy, you might convert part of it to mechanical energy under certain circumstances, but never all of it.
Wiki User
∙ 14y agoNo, most heat energy can never be converted into work. Heat is the most entropic form of energy, and therefore is limited by the second law of thermodynamics.
Wiki User
∙ 10y agoYes, examples are steam turbines, locomotive, hydraulic turbines, etc.
Wiki User
∙ 7y agoNo. Conversion of energy from one form to another always results in some wastage: no machine is 100% efficient in energy conversion.
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How does the amount of energy in the batteries compare to the total amount of light given off by the flashlight?
Well more chemical energy in a battery means more energy can be converted to light energy. I believe that the light will last longen and\or be brighter.
Does an electric generator motion produces magnetism or power or electricity?
An electric generator produces electrical energy. It converts mechanical energy to electrical energy by interacting with a magnetic field. The amount of electrical energy converted to useful work in a given time interval is the power output. If the generator is not connected to any load, then no work is done and there is no power.
Is it possible to entirely convert a given amount of heat into mechanical energy?
No. In heat energy, there is always a certain amount of unusable energy. What amount depends on the availability of colder objects.
What is net amount of energy?
The Net energy = the difference between the energy put in and the energy given out.
How do you convert sound energy into mechanical energy using simple machines?
you can convert sound energy into mechanical energy by yelling into an empty plastic water jug. You will feel the walls of the container vibrating because of the sound waves hitting the walls of the jug. The walls vibrating are mechanical energy given to it by the sound energy. Sound energy is just an air wave. when the air waves run into something that vibrates along with it, the vibration of the thing is mechanical energy
Is it possible to totally convert a given amount of mechanical energy into heat?
Strictly speaking, it's not. It's connected to the fact that the mechanical energy can be converted to IR radiation (or other kinds of EM waves), or it can be converted to the vibrations of the material's lattice and so on.
How does the amount of energy in the batteries compare to the total amount of light given off by the flashlight?
Well more chemical energy in a battery means more energy can be converted to light energy. I believe that the light will last longen and\or be brighter.
Does an electric generator motion produces magnetism or power or electricity?
An electric generator produces electrical energy. It converts mechanical energy to electrical energy by interacting with a magnetic field. The amount of electrical energy converted to useful work in a given time interval is the power output. If the generator is not connected to any load, then no work is done and there is no power.
Can you convert a given heat energy into mechanical energy?
yes you can
Energy that is not converted to useful energy is usually given off as?
heat
The amount of chemical energy in consumers' food that is converted to their own new biomass during a given time period is known as?
secondary production
Is it possible to entirely convert a given amount of heat into mechanical energy?
No. In heat energy, there is always a certain amount of unusable energy. What amount depends on the availability of colder objects.
How is energy converted to solar energy?
I've given a couple links below to articles that can answer your question.
The amount of energy that passes through a given point in a given amount of time is the?
intensity
What would be the skaters speed if all the potential energy could be converted into kinetic energy?
Clearly, that depends on the amount of potential energy. If given the height, calculate the potential energy with the formula for gravitational potential energy (PE = mgh). If mass is not given, you can assume any mass (it doesn't affect the result), or use a variable "m". Then, assuming it gets converted to kinetic energy, use the formula for kinetic energy (KE = (1/2)mv2), replace the KE with the energy you calculated before, and solve for v (the speed).
What is net amount of energy?
The Net energy = the difference between the energy put in and the energy given out.
What does energy budget mean?
It's the amount of energy given out by the sun, and the energy received by the earth. Within that is the energy reflected and the energy given off from the earth.
