Why are the units of work and energy same?
Work and Energy have the same unit because they are intimately related by the Work-Energy Theorem. This states that the Work done on an object moving from point A to point B is the difference in the Kinetic Energy it has at the two points. In simplified form it says that in order to do Work, you must use Energy; you can never do Work without using Energy, and so for convenience we give them the same unit. You didn't ask about Heat, but it really ought to be mentioned here, too; when you use Energy to do Work, some of the Energy usually gets converted to Heat by friction, so we can and do also use the same unit for Heat. Work and Energy and Heat are not the same thing, but they are inextricably related. By extension, the Theorem lets us define forms of Energy other than Kinetic Energy which enable us to do Work: Chemical Energy, Electrical Energy, Nuclear Energy, Gravitational Energy, etc. The SI unit of work or energy is Newton-meter (Nm). Another name for it is Joule (J). 1 joule is defined as the work done when a force of one newton acts over one metre of distance. 1 joule is also the amount of heat dissipated when a current of 1 ampere passes through a resistor of 1 ohm for 1 second (or 1 watt-second). Please use the following link to confirm the accuracy of the information presented here, or for more information.
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Your radio used to stop working all of a sudden now it stopped all to gatherI have changed the unit out with same results?
Answer . Try checking the radio fuse in the trunk located behind the padding just above the battery when you open the battery compartment ..the fuses are numbered the label should be on the reverse side of the flipdown cover for the comparment ...hope that helps ......wizzard
Answer . In physics, work is a form of energy . The unit of energy in the SI system of units is the Joule . One Joule of energy is equal to the work done by a force of 1 Newton acting over a distance of 1 meter..
If matter and energy are the same thing and both have gravity does energy equal to a specified unit of matter have the same gravity or different?
They have the same gravitational effect.\n. \nThis was one of the major vindications of Einstein's theory. It turns out that the planet Mercury does not orbit as it "should" according to classical physics; astronomers thought that there must be an additional planet located inside the orbit of Mercu…ry that was affecting its orbit. However, no search for this planet (tentatively called "Vulcan") ever turned up anything other than a few asteroids, far too light to have the observed effect.\n. \nHowever, because energy has effective mass (and therefore gravitational pull), Einstein's equations predict an orbit for Mercury that exactly matches the observed orbit. No additional planet is needed. ( Full Answer )
In the SI system the units are Joules. You can also use ftlbf (footpoundforce). For thermal energy use calories or BTU
The most common unit of energy in biology is calories. A calorie isa unit of energy, require to raise 1 kilogram of water to 4.1868joules.
Work and Energy are analogous to Debt and Payment. If you owe me $1, you should pay me $1 to cancel your debt.. If work requires 1 J, then you must have the energy of 1 J to satisfy the work requirment, or the job is NOT DONE.
The smallest unit of energy usually measured is called the Erg . 1 erg is the amount of work done when a force of 1 dyne pushes through a distance of 1 centimeter. The SI standard unit of energy today is the joule . 1 joule is the amount of work done when a force of 1 newton pushes through …a distance of 1 meter. It's the same amount of energy as 10 million ergs. A unit of energy widely recognized by people in much of the world ... because it's the unit counted on our electric bills ... is the kilowatt-hour . If you use 1,000 joules of energy every second and keep that up for an hour, you've used 1 kilowatt-hour of it. 1 kilowatt-hour is the same amount of energy as 3,600,000 joules, or 36,000,000,000,000 ergs. its a joule ( Full Answer )
Because energy and work have the same dimensions: energy is the ability to do work and work is the expenditure of energy. The SI unit is the joule.
Kinetic energy of a moving object varies directly with the square of velocity If a car moving at 60mph has kinetic energy 180 units how many units of kinetic energy does the same car have at 20mph?
The "units" are called joules (J), not to be impolite. The answer would be about 19.9809 J.
The standard unit is the joule. Other older or specialized units are sometimes used, such as the calorie or the electron-volt.
-- foot-pound -- watt-second -- watt-hour -- kilowatt-hour -- horsepower-hour -- inch-pound SI unit: Joule
The Joule, commonly abbreviated J, is the SI unit for work and energy. 1 J = k-m 2 /s 2
Because energy and work have the same 'dimensions', which is the scientist's way of saying they both have the same make-up of the basic units, which are length, mass, and time. In fact energy can be defined as the capacity for doing work, which is potential energy, and when work is done energy is ex…pended. When a power plant generates say 1000 MegaWatts, this is called Energy, and it is sent out to the grid. At the same time many different loads are using this energy, some for electric motors, some for heating, others in various industrial processes, some to run computers, and so on. These loads are all doing work, and consuming energy in doing so. 1000 MW is 10 9 Watts, and this means 10 9 Joules per second, so that is the work being done every second by all these various loads combined. ( Full Answer )
Yes, work and energy have the same units. In the SI system, both are measured in Joules.
A1. Mechanical energy is energy produce from raw materials which are burnt, such as oil, work is the use of energy ehich may be mechanical, or physical, which means the use of foods to produce energy which is then used for work, so no, they are not the same thing. A2. Energy and work have the sam…e units, ie Joules in the SI system, and the dimensions are Force x Distance, or Newtons x Meters. I always think of work as the use of energy. Thus for example you release energy from a fuel such as gasoline by burning it, and use this energy to do work, ie propelling a car. ( Full Answer )
The unit of energy within the S.I(system internationale) is the Joule with the symbol J.
Yes, the unit of megawatt day is energy 1 megawatt day = 1 (megawatt.day )10 6 (watt/megawatt) x 24 (hour/day) x 3600 (second/hour) = 8.64 x 10 10 watt.sec = 8.64 x 10 10 Joule . Both Joule and watt.sec are also units of energy
Work is defined as Force applied over a distance i.e. W=F*x. The units are, therefore, 1Newton*1meter=1Joule. Work is measured in Joules! Work is energy. Any unit used for energy is a perfectly good unit for describing work. The SI unit is the joule. Other examples include foot-pound, watt-sec…ond, kilowatt-hour, dyne-centimeter, ton-furlong, horsepower-hour, etc. ( Full Answer )
Work IS a kind of energy: work is the word used for transfer of energy. Work IS a kind of energy: work is the word used for transfer of energy. Work IS a kind of energy: work is the word used for transfer of energy. Work IS a kind of energy: work is the word used for transfer of energy.
Work and kinetic energy are defined as scalar energy and have the same units joules. dW=F.dr = (dP/dt) dr=dP(dr/dt) = dPv = vdP= mvdv W = F.r = mv^2/2. Physics has defined scalar energy but has no definition for vector energy mcV. Torque which is T= Fxr should be recognized as vector ener…gy but it is defined as "Torque". This is another example of Physics not appreciating that the Universe is made of Quaternions, a Scalar part and a Vector part. E= FR = -F.R + FxR where the scalar energy has been defined as work (F.R) and the vector energy is defined as Torque FxR. Kinetic energy is a transformation of work in terms of mass and velocity versus force and distance. The vector energy is not called energy. See link: http://en.wikipedia.org/wiki/Torque ( Full Answer )
They are related because you need energy in order to do work.Comment if you think this didn't help. Thanks bye! Another Answer Energy is the ability to do work . Work is the process of converting one form of energy into another .For example, an electric motor converts electrical energy i…ntokinetic energy, so it is doing work. As an analogy, you can compare energy with 'savings' and work with'spending'. You need savings in order to spend. Spending convertsyour savings into goods. ( Full Answer )
Wind is simple air in motion. The origin of wind is complex. The Earth is unevenly heated by the sun resulting in the poles receiving less energy from the sun than the equator does. Also the dry land heats up (and cools down) more quickly than the seas do. The differential heating powers a global at…mospheric convection system reaching from the Earth's surface to the stratosphere which acts as a virtual ceiling. Wind can be used to do work. The kinetic energy of the wind can be changed into other forms of energy, either mechanical energy or electrical energy. Wind energy is ample, renewable, widely distributed, clean, and mitigates the greenhouse effect if used to replace fossil-fuel-derived electricity. History of wind as energy source Since ancient times, people have harnessed the winds energy. Over 5,000 years ago, the ancient Egyptians used wind to sail ships on the Nile River. Later, people built windmills to grind wheat and other grains. The earliest known windmills were in Persia (Iran). These early windmills looked like large paddle wheels. Centuries later, the people of Holland improved the basic design of the windmill. They gave it propeller-type blades, still made with sails. Holland is famous for its windmills. American colonists used windmills to grind wheat and corn, to pump water, and to cut wood at sawmills. As late as the 1920s, Americans used small windmills to generate electricity in rural areas without electric service. When power lines began to transport electricity to rural areas in the 1930s, local windmills were used less and less, though they can still be seen on some Western ranches. The oil shortages of the 1970s changed the energy picture for the country and the world. It created an interest in alternative energy sources, paving the way for the re-entry of the windmill to generate electricity. In the early 1980s wind energy really took off in California, partly because of state policies that encouraged renewable energy sources. Support for wind development has since spread to other states, but California still produces more than twice as much wind energy as any other state. How do we turn wind into energy? Blowing wind spins the blades on a wind turbine - just like a large toy pinwheel. This device is called a wind turbine and not a windmill. A windmill grinds or mills grain, or is used to pump water. The blades of the turbine are attached to a hub that is mounted on a turning shaft. The shaft goes through a gear transmission box where the turning speed is increased. The transmission is attached to a high speed shaft which turns a generator that makes electricity. If the wind gets too high, the turbine has a brake that will keep the blades from turning too fast and being damaged. There is still the problem of what to do when the wind isn't blowing. At those times, other types of power plants must be used to make electricity. In order for a wind turbine to work efficiently, wind speeds usually must be above 12 to 14 miles per hour. Wind has to be this speed to turn the turbines fast enough to generate electricity. The turbines usually produce about 50 to 300 kilowatts of electricity each. A kilowatt is 1,000 watts (kilo means 1,000). You can light ten 100 watt light bulbs with 1,000 watts. So, a 300 kilowatt (300,000 watts) wind turbine could light up 3,000 light bulbs that use 100 watts! Wind Energy An estimated 1% to 3% of energy from the Sun that hits the earth is converted into wind energy. This is about 50 to 100 times more energy than is converted into biomass by all the plants on Earth through photosynthesis. Most of this wind energy can be found at high altitudes where continuous wind speeds of over 160 km/h (100 mph) occur. Eventually, the wind energy is converted through friction into diffuse heat throughout the Earth's surface and atmosphere. Wind power plants Wind power plants, or wind farms as they are sometimes called, are clusters of wind machines used to produce electricity. A wind farm usually has dozens of wind machines scattered over a large area. The Big Spring Wind Power Project in Texas has 46 wind turbines that generate enough electricity to power 7,300 homes. Unlike power plants, many wind plants are not owned by public utility companies. Instead they are owned and operated by business people who sell the electricity produced on the wind farm to electric utilities. These private companies are known as Independent Power Producers. Operating a wind power plant is not as simple as just building a windmill in a windy place. Wind plant owners must carefully plan where to locate their machines. One important thing to consider is how fast and how much the wind blows. As a rule, wind speed increases with altitude and over open areas with no windbreaks. Good sites for wind plants are the tops of smooth, rounded hills, open plains or shorelines, and mountain gaps that produce wind funneling. Wind speed varies throughout the country. It also varies from season to season. In Tehachapi, California, the wind blows more from April through October than it does in the winter. This is because of the extreme heating of the Mojave Desert during the summer months. The hot air over the desert rises, and the cooler, denser air above the Pacific Ocean rushes through the Tehachapi mountain pass to take its place. In a state like Montana, on the other hand, the wind blows more during the winter. Fortunately, these seasonal variations are a good match for the electricity demands of the regions. In California, people use more electricity during the summer for air conditioners. In Montana, people use more electricity during the winter months for heating. Small scale production Wind turbines have been used for household electricity generation in conjunction with battery storage over many decades in remote areas. Household generator units of more than 1 kW are now functioning in several countries. To compensate for the varying power output, grid-connected wind turbines may utilise some sort of grid energy storage. Off-grid systems either adapt to intermittent power or use photovoltaic or diesel systems to supplement the wind turbine. Wind turbines range from small four hundred watt generators for residential use to several megawatt machines for wind farms and offshore. The small ones have direct drive generators, direct current output, aeroelastic blades, lifetime bearings and use a vane to point into the wind; while the larger ones generally have geared power trains, alternating current output, flaps and are actively pointed into the wind. Direct drive generators and aeroelastic blades for large wind turbines are being researched and direct current generators are sometimes used. In urban locations, where it is difficult to obtain large amounts of wind energy, smaller systems may still be used to run low power equipment. Distributed power from rooftop mounted wind turbines can also alleviate power distribution problems, as well as provide resilience to power failures. Equipment such as parking meters or wireless internet gateways may be powered by a wind turbine that charges a small battery, replacing the need for a connection to the power grid and/or maintaining service despite possible power grid failures. Small-scale wind power in rural Indiana.Small scale turbines are available that are approximately 7 feet (2 m) in diameter and produce 900 watts. Units are lightweight, e.g. 16 kilograms (35 lbs), allowing rapid response to wind gusts typical of urban settings and easy mounting much like a television antenna. It is claimed that they are inaudible even a few feet under the turbine. Dynamic braking regulates the speed by dumping excess energy, so that the turbine continues to produce electricity even in high winds. The dynamic braking resistor may be installed inside the building to provide heat (during high winds when more heat is lost by the building, while more heat is also produced by the braking resistor). The proximal location makes low voltage (12 volt, or the like) energy distribution practical. An additional benefit is that owners become more aware of electricity consumption, possibly reducing their consumption down to the average level that the turbine can produce. According to the World Wind Energy Association, it is difficult to assess the total number or capacity of small-scaled wind turbines, but in China alone, there are roughly 300,000 small-scale wind turbines generating electricity. Enviromental_concerns Wind energy offers a viable, economical alternative to conventional power plants in many areas of the country. Wind is a clean fuel; wind farms produce no air or water pollution because no fuel is burned. The most serious environmental drawbacks to wind machines may be their negative effect on wild bird populations and the visual impact on the landscape. To some, the glistening blades of windmills on the horizon are an eyesore; to others, they're a beautiful alternative to conventional power plants. . ( Full Answer )
The SI unit for work is the joule, which is defined as the work done by a force of one newton acting over a distance of one metre. One calorie is equal to 4.184 joules.\n
There are several possibilities. Here are a few: -- Joule -- calorie -- Calorie (kilocalories) -- Horsepower-hour -- foot-pound -- dyne-centimeter -- kilowatt-hour -- watt-second -- volt-ampere-second
Energy and work have the same units because......we say energy is the ability to do work....work is the energy transferred from a body to another.....the donor of energy is said to have done work upon the acceptor...
Work and energy use the same units; but the term "work" is used in the sense of "transfer of energy" (amount of energy transferred).
This is too difficult to explain in a few words; I suggest you read the Wikipedia article: http://en.wikipedia.org/wiki/Energy
The use of electricity for electronic devices is the main place. Technology has been developed to utilize electrons to do certain things. For example, an incandescent light bulb operates by emitting visible electromagnetic radiation, when a filament coated in Carbon is connected to a power supply. … There is also the concept of generating heat energy in order to boil water to generate steam. This steam is then fed into a turbine that turns a reversed motor (generator) to generate electricity. The voltage of an electron is its kinetic energy, while the amperage is its charge. ( Full Answer )
No, they are not the same. Generally, green energy provides energy for a fraction of, or, a complete offset of, emissions. For example, installing a hydroelectric dam may generate LOTS of renewable energy, however, it will also impact the surrounding ecosystem in a very negative way. But, when co…mpared against burning coal for electrical generation, you might consider a hydroelectric dam to be "green". Likewise, an incinerator may not be considered green, because it produces emissions. However, if an incinerator burned wood in an environmentally responsible manner, and the trees cut down were replanted, it could also be considered renewable. While there are many definitions out there, I'd sum it up as this: Green Energy is energy that can be produced with little to no impact to the local, regional, or global environment. BUT, Green Energy can also be used in the comparative sense, ie: Energy generated by a dam is green in comparison to a coal power plant. Renewable energy is energy that can be produced continually when managed properly, from the same resource, for an infinite amount of time. (Think solar panels, hydroelectric dams, wind farms, etc.) ( Full Answer )
Unit cost is how much is costs to make. Unit price is how much you sell it for. The difference is profit.
because work is a transformation of energy. If there is some loss of energy in a process then same amount of work will be created. For this reason the unit of work and energy is same.
kWh = the abbreviation for "kilowatt-hour". It's a unit of energy, equal to 3.6 million joules (3.6 million newton-meters).
Work, or course, requires energy. A unit of energy is required to do a unit of work. We use the same unit for both: the joule. That energy is not lost - the law of conservation of energy - it is just converted to another form. So chemical energy in the sugars in my muscles lift 100g 1m. That r…equires 1 joule of energy. The 100g weight now has 1 joule more of potential energy. If i drop the weight 1 meter, it gains 1 joule of kinetic, or moving energy. When it hits the desk, it bends the substance of the desk, heating it up, creating heat energy. The sound waves also carry away energy, which will also end up as heat as they are absorbed. So the energy remains, converted from one type of energy to another, as various types of work are done. ( Full Answer )
Newton-meter (newton times meter) is also know as joule. The joule is the SI unit for energy and work.
The Joule is the SI unit of energy or work. 1 Joule = (1 Newton)*(1 meter) or 1 kg*m 2 /s 2
It is a type of potential energy, but there are other types of potential energy, too.
Consider "work" as a "change in energy" or "transfer of energy". It makes sense to use energy units for work.
Force . . . . . . . . . kilogram-meter per second 2 = newton Distance. . . . . . . meter Work, Energy. . . newton-meter = joule Power . . . . . . . . joule per second = watt Time. . . . . . . . . . second
We know that radioactive energy is derived from unstable atomic nuclei. This means that it is essentially correct to say that radioactive energy (the energy derived from radioactive materials) is nuclear energy.
energy does work by giving another object energy to do work. something moves/motions, which creates energy for another object to use. for example: a flowing river spins a watermill, which then works for other purposes. energy = flowing river object that receives energy to do other work = watermill… ur welcome maddie b. ( Full Answer )
I am not sure what you mean with "working energy". Kinetic energy is specifically energy related to movement - the energy an object has because it is moving. .
How can 6 remotes for 2 garage doors all stop working at the same time but the button on the unit itself still work?
I believe the remotes didn't stop working - but the opener'sreceiver did. This way, only the power button (which obviouslydoesn't need the receiver) works while no remote, even a new one,will be able to. If the receiver can't be fixed and you need to have it replaced, Irecommend a new Bluetooth or …Wifi receiver (you need to see if youropener's model supports this receiver option). This way you won'tneed 6 different remotes, you just need a smartphone or a tablet,and you're good to go! You can give access to several differentdevices, and it's super easy to use. The WiFi option can also help you monitor your garage door fromabout anywhere with an internet connection, so you can know if itwas used while you were away. You can also control it of course. ( Full Answer )
The derived SI unit of energy, and work is the joule. One joule is the energy used, or the work done, in applying a force of one newton through a distance of one metre; also defined as the energy to pass a current of one ampere through a resistance of one ohm for one second.
Yes they are. . * * * *. No, they are not. A foot, for example, is a standard unit of the Imperial system..
How long will production line A have to work to produce the same amount of units as line B when A produces 12.5 units in an hour and line B produces 15.25 units in an hour?
15.25/12.5 = 1.22 times the length of time that line B works. So if line B works for 1 hour and produces 15.25 units, line A will need to work 1.22 hours (1 hour 13.2 minutes) to produce that number.
That's the 'Joule'. It's the amount of work performed or energy spent when a force of 1 Newton pushes through a distance of one meter. (Notice that it doesn't matter how much time it takes.)
Using: 1 horsepower = 550 foot-pounds per second 800 x 200 = 160,000 foot-pounds per minute = 160,000 / 60 foot-pounds per second. # Horsepower = 160,000 / 60 x 550 = 4 28 / 33 = 4.848 HP (rounded)
No.. The foot is a standard unit - but of the Imperial system.. No.. The foot is a standard unit - but of the Imperial system.. No.. The foot is a standard unit - but of the Imperial system.. No.. The foot is a standard unit - but of the Imperial system..
energy is the ability to do work. work is done when a force moves an object thru some distance.
Energy . . . 'Joule' Momentum . . . 'kilogram-meter per second' . . . the product of (mass x speed) Work . . . work is energy, measured in units of energy Power . . . power is the rate of producing or using energy, 'joule per second', also called 'watt'.