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Why will a star with a large mass radiate more energy into space and appear hotter and brighter than a star with a smaller mass?
Because the larger mass means more core pressure, making fuel (hydrogen turning into helium) burn faster and more frequently, resulting in a hotter, brigher star. A small mass star has less fuel and internal pressure, so it generates less light and is red in color. A medium star like our sun burns moderately, and is yellow.
The H-R Diagram places these stars in spectral classes, from biggest and hottest to smallest and dimmest, and the orders are O, B, A, F, G, K and M. We are a type G star.
Think of a fire; the more fuel you put on it, the hotter and brighter it blazes and it can become white-hot if it is a very intense fire. As the ashes burn down, the fire is smaller, dimmer and the coals appear red, which is cooler.
The principle is the same with stars; the bigger and hotter they are, the brighter they burn but they have shorter lives than do moderate and small stars.
What else can I help you with?
Why electrons does not radiate energy?
Electrons do radiate energy when they are accelerated, but in stable orbits around an atomic nucleus, they do not radiate energy due to a balance between the centripetal force keeping them in orbit and the electromagnetic force. This results in a stable orbit without energy loss.
Why does a medium-siza star appear brighter than the others?
A medium-sized star may appear brighter than other stars due to its luminosity, which is a measure of the total amount of energy it emits per unit time. This brightness is determined by factors such as the star's size, temperature, and distance from Earth. In general, larger and hotter stars tend to be more luminous and thus appear brighter in the night sky.
In polar regions ions radiate energy are shimmering ligts called?
In polar regions, ions radiate energy that creates shimmering lights called auroras. These auroras are a natural phenomenon caused by interactions between charged particles from the sun and the Earth's atmosphere. The lights can appear in different colors such as green, red, or purple, depending on the type of particles involved.
What process creates energy in the sun?
The energy in the sun is created through nuclear fusion, where hydrogen nuclei combine to form helium nuclei releasing large amounts of energy in the process. This energy is released in the form of photons (light) and other particles, which radiate outwards from the sun.
What type of star may appear brighter than an entire galaxy for days?
A type of star that may appear brighter than an entire galaxy for days is a supernova. When a massive star exhausts its nuclear fuel and undergoes a catastrophic explosion, it can temporarily outshine entire galaxies, emitting tremendous amounts of light and energy. This phenomenon can produce visible light that lasts for weeks to months, making supernovae some of the most luminous events in the universe.
Does a lamp get brighter if it is nearest to the energy source?
Yes, a lamp will typically appear brighter when it is closer to the energy source. This is because the light intensity decreases as the distance from the source increases. Placing the lamp closer to the energy source allows for more light to reach the lamp and make it appear brighter.
If something is hotter and smaller does it give off a greater luminosity?
an increase in temperature or radius causes an increase in luminosity, assuming the other variable doesn't change. luminosity is the total energy output, rather than a measure of energy output against size.
What is the meaning of pulsar?
radiate energy
Can you have a sentence using the word radiate?
The warm sun seemed to radiate healing energy on the hikers as they rested by the peaceful lake.
How much heat do humans radiate?
On average, humans radiate about 100 watts of heat energy.
Why electrons does not radiate energy?
Electrons do radiate energy when they are accelerated, but in stable orbits around an atomic nucleus, they do not radiate energy due to a balance between the centripetal force keeping them in orbit and the electromagnetic force. This results in a stable orbit without energy loss.
Which is brighter larger stars or smaller stars?
Brightness is related to distance. However, from the same distance, an O class star is much much brighter than a M class star. As a comparison, an O class star would appear about 100,000 times brighter than our Sun, whereas a M class star could appear 0.0017 dimmer than our Sun, if the Sun was replaced with each star.
What is the definition of the word 'radiate'?
The definition of 'radiate' is to emit energy in the form of waves or rays. More specifically, 'radiate' also refers to energy being released in heat, gas or light form. Synonyms of the word include 'beam' and 'emit'.
What objects can radiate energy?
Objects that can radiate energy include stars, light bulbs, heated coils, and the Earth's surface. The type of radiation (such as heat, light, or electromagnetic waves) emitted by an object depends on its temperature and composition.
What is the connection between a star's surface temperature and its color?
Stars that are cool normally radiate ther energy in the electromagnetic spectrum as red. Even though all the sky appear to be white, Hot stars radiate much longer wave lengths, causing an almost blue color to be emitted.
When excited electrons radiate energy the amount of energy given off is equal to?
The amount of energy given off by excited electrons when they radiate energy is equal to the difference in energy level between the initial and final states. This emitted energy is typically in the form of photons.
In polar regions ions radiate radiate energy as shimmering lights called?
Aurora borealis; the Northern Lights.
