2007-04-13 12:05:44 · 8 answers · asked by pinkygirl m 3 in Science & Mathematics ➔ Physics
solar energy
2007-04-13 12:11:33 · answer #1 · answered by Metal Head 2 · 1⤊ 0⤋
Let's see ...
Well, yes, light for sure.
Of course all we ever SEE (with our eyes) is light, but sometimes WHAT we see shows us that additional manifestations of energy are at work.
Kinetic energy is readily apparent as well; see a moving object and it will have kinetic energy.
Electrical energy is visible in lightning
Heat energy can be visualised when objects become incandescent. Heat energy can also be seen with the aid of liquid crystal displays, used in some types of clinical thermometer where a film is placed on the patient's forehead and the temperature can be read directly from the film.
Gravitational potential energy can be implied from the tides and the waves on the sea, from the motions of heavenly bodies and from the rate with which an object falls towards the ground.
Chemical potential energy is seen when the energy is transferred to the surroundings through processes such as combustion or bioluminescence. Chemical potential energy is also seen when the energy of sunlight is used in photosynthesis - the leaves and growth of the plants is the amassing of of chemical potential energy.
Strain energy (potential energy of stretching) is seen as the reversible extension of springs, elastic bands etc. Some plastics change colour when deformed.
We see magnetic energy associated with sunspots, solar prominences and the aurorae.
We see nuclear energy in old fashioned luminous dials and Cherenkov radiation (blue glow associated with nuclear reactors)
You might even argue that all matter is 'condensed energy'.
2007-04-13 12:54:27 · answer #2 · answered by Dr Bob UK 3 · 0⤊ 0⤋
Heat. Ever seen a red-hot bar of iron or steel? It's glowing because it's been heated up. That is how an incandescent lightbulb works. The fine tungsten wire inside heats up when you pass electric current over it, and as a result, it glows white-hot, producing light. Also, you can see the effects of other types of energy, like kinetic energy. When something is moving, it has kinetic energy.
2007-04-13 12:26:07 · answer #3 · answered by Superconductive Magnet 4 · 0⤊ 0⤋
The visible section of the electromagnetic spectrum is the only means to literally see energy with your own eyes. You will need to use the other senses to experience other forms of energy, eg. kinetic energy
2007-04-13 12:30:33 · answer #4 · answered by ? 1 · 0⤊ 0⤋
It's a trick question. It's a philosophical question whether to consider energy as some physical entity or not. My personal take is that energy is not a physical entity, and therefore, Energy itself cannot be seen, however its change can be noticed.
2007-04-13 12:18:07 · answer #5 · answered by tereghar k saamne 2 · 1⤊ 1⤋
Actually, all non-microscopic energy can be seen.
a) light
b) heat
c) sound, wait, nevermind you cant see sound
d) chemical energy
e) and this is the form of energy that everyone is suprised to see, but we all see it everyday. it is...
MASS. yes, that's right, all objects are actually energy.
WAIT.
the reader asks, mass isnt energy, how can humans be forms of energy?
well, i just give them one equation.
E=mc^2
Oh! Burn! Mass = energy, and energy =mass, so mass is a form of energy!
2007-04-13 15:05:16 · answer #6 · answered by The Ponderer 3 · 0⤊ 0⤋
Electromagnetic. Light, or x-ray if you're Clark Kent.
2007-04-13 13:12:45 · answer #7 · answered by Nomadd 7 · 0⤊ 0⤋
light
you can see it, and you can't see without it
2007-04-13 12:08:05 · answer #8 · answered by Anonymous · 2⤊ 0⤋