Briefly describe the four categories of energy that make up the total energy of
ID: 1565103 • Letter: B
Question
Briefly describe the four categories of energy that make up the total energy of a system. What is an irreversible process? What types of energy are changed by irreversible processes? Provide an example. You are designing a roller coaster with a loop-the-loop. The peak height of the loop-the-loop is 5 meters. The roller-coaster car has a mass of 800 kg and can scat a maximum of six 100 kg people. This means that the maximum mass of a fully occupied car is 1400 kg. What's the minimum amount of kinetic energy that a maximum weight roller-coaster car needs to be able to reach the peak height of the loop-the-loop from ground level? Assume that the car rolls frictionlessly on the track. At the beginning of the ride, the car is pulled to the top of the tall hill. What is the minimum height of the roller coaster's starting hill assuming that no more energy will be added during the ride? Suppose that the car is only filled to half of its capacity. How fast is it moving at the top of the loop-the-loop?Explanation / Answer
The four categories of energy that make up the system are :
1) Light energy
2) Heat energy
Heat energy is another category of energy of a system and it is defined as a form of energy which transfers among particles in a system by means of kinetic energy of those particles. As under kinetic theory, the heat is transferred by particles colliding and bouncing into each other. It is also called thermal energy.
3) Sound energy
Sound energy is another category of energy which is primarily associated with vibrations of matter particles. It is a type of mechanical wave which requires a medium to travel. This medium includes air and water. Sound originates from the vibrations that result after an object applies a force to another object. So it travels fastest in solids.
4) Electrical energy
Electrical energy is another form of energy which has the capability to move charges from one point to another. this principle is used in the transportation of electrical energy from the electrical power plants to various houses homes etc.
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The capacity of light to perform reasonable work is called light energy. Light energy is the only form of energy that we can actually see directly which can be either through sunlight, or through explosion etc. It is formed through chemical, radiation, and mechanical means. Light energy can also be converted into other forms of energy.Related Questions
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