The bursts of heat and light energy extending from the surface of the Sun are known as solar flares. These explosive events occur when magnetic energy that has built up in the solar atmosphere is released, resulting in intense radiation across the electromagnetic spectrum. Solar flares can impact space weather, affecting satellite operations and communication on Earth. They are often associated with sunspots and other solar activity.
Sun is the source of heat and light energy. It provides energy on earth's surface.
The dense layer of the sun that blocks energy and light is the photosphere. It is the visible surface of the sun and is where the sun's energy is emitted into space as light and heat.
visible light
A black surface absorbs all colors of light, as it does not reflect any color back to the observer. Instead, it converts the light energy into heat.
Some of the most intense sources of light in the universe are quasars, which are extremely bright and energetic regions around supermassive black holes at the centers of galaxies, and gamma-ray bursts, which are short bursts of high-energy gamma rays released during cataclysmic events like supernovae or neutron star mergers.
Light is not mechanical energy but it can be transformed into mechanical energy. Light creates an impact as it hits a surface.
Light energy can be converted into heat energy through processes like absorption, reflection, and refraction. For example, when sunlight hits a dark surface, the surface absorbs the light energy and converts it into heat. Similarly, when light is reflected off a surface, some of the energy is converted into heat. Refraction of light through a medium can also generate heat energy.
Light energy can be transformed into thermal energy (heat), chemical energy (in photosynthesis), and electrical energy (in photovoltaic cells) when absorbed by a surface.
heat
Sun is the largest source of light energy. It provides heat and light on earth's surface.
Most of the light's energy gets converted into heat.
Violet light has higher energy photons compared to red light. This higher energy allows violet light photons to transfer enough energy to electrons in the photosensitive surface to eject them, a process known as the photoelectric effect. Red light photons do not have enough energy to overcome the work function of the surface and therefore cannot eject electrons.
Friction between the match head and the rough surface of the matchbox causes the match head to heat up, converting mechanical energy into thermal energy. This increase in temperature eventually ignites the match head, producing light and heat energy in the form of a flame.
When light hits an object, most of the light is absorbed by the surface of the object. The absorbed light energy is then converted into heat, which can lead to the object warming up. The color of the object determines how much of the light is absorbed and how much is reflected.
Light can be absorbed or reflected at the surface of an object. When light hits an object, the surface material can absorb some of the light energy, causing it to be converted into other forms of energy like heat. Alternatively, the surface material can reflect the light, bouncing it back in various directions.
Light produces electrons in the photoelectric effect. When light of sufficient energy (photon energy) shines on a metal surface, it can eject electrons from the surface, creating a flow of current.
When light is absorbed by an object or surface, it causes the material to gain energy, usually in the form of heat. The absorbed light energy may also be converted into other forms of energy within the material, such as chemical or electrical energy, depending on the properties of the material.