Table of Contents
- 1 How does the mass of a star affect its life cycle?
- 2 How does temperature and mass affect the appearance of stars?
- 3 What is the life cycle of a large mass star?
- 4 Which answer best describes how mass affects a star’s life?
- 5 Why is mass so important to a star’s life?
- 6 What the differences are between a high mass and low mass star’s life cycle you should include named stages and how this is related to the Hertzsprung Russell diagram?
- 7 How is the size of a StAR related to its life cycle?
- 8 Why do massive stars have a higher temperature?
How does the mass of a star affect its life cycle?
A star’s life cycle is determined by its mass. The larger its mass, the shorter its life cycle. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by nuclear fusion, the core becomes unstable and contracts.
How does temperature and mass affect the appearance of stars?
That increased surface area allows more light and energy to be given off. Temperature also affects a star’s luminosity. As a star gets hotter, the number of nuclear reactions increases. More reactions, more energy.
What does temperature have to do with the life cycle of stars?
The color of the star depends on the surface temperature of the star. And its temperature depends, again, on how much gas and dust were accumulated during formation. The more mass a star starts out with, the brighter and hotter it will be.
How does the color and size of the star change as it goes to the next stage?
Eventually, as stars age, they evolve away from the main sequence to become red giants or supergiants. The core of a red giant is contracting, but the outer layers are expanding as a result of hydrogen fusion in a shell outside the core. The star gets larger, redder, and more luminous as it expands and cools.
What is the life cycle of a large mass star?
The exact lifetime of a star depends very much on its size. Very large, massive stars burn their fuel much faster than smaller stars and may only last a few hundred thousand years. Smaller stars, however, will last for several billion years, because they burn their fuel much more slowly.
Which answer best describes how mass affects a star’s life?
The larger a star, the shorter its life because it fuses hydrogen into helium much more quickly. A star whose mass is more than 20 Suns will run out of hydrogen in only a few hundred million years.
How does the temperature of a star affect its color?
The surface temperature of a star determines the color of light it emits. Blue stars are hotter than yellow stars, which are hotter than red stars. Remember that magnitudes decrease with increasing brightness, so if B – V is small, the star is bluer (and hotter) than if B – V is large.
Does the size of a star affect its temperature?
The hotter a surface is, the more light it produces. The bigger a star is, the more surface it has. When these relationships are combined, two stars at the same temperature can be vastly different in brightness because of their sizes.
Why is mass so important to a star’s life?
Mass is the most important stellar property. This is because a star’s life is a continuous fight against gravity, and gravity is directly related to mass. The more massive a star is, the stronger its gravity. Mass therefore determines how strong the gravitational force is at every point within the star.
There isn’t much of a difference in the initial stages of Stellar Evolution, the only difference is the rate at which the fuel burns. Third Difference is the fate of the Star, what it becomes after it has consumed all of it’s Fuel, when the core cannot go any further.
What is the relationship between color and temperature of a star?
The surface temperature of a star determines the color of light it emits. Blue stars are hotter than yellow stars, which are hotter than red stars.
What does the color of a star indicate about its temperature?
Stars emit colors of many different wavelengths, but the wavelength of light where a star’s emission is concentrated is related to the star’s temperature – the hotter the star, the more blue it is; the cooler the star, the more red it is.
The larger its mass, the shorter its life cycle. A star’s mass is determined by the amount of matter that is available in its nebula, the giant cloud of gas and dust from which it was born.
Why do massive stars have a higher temperature?
Since higher mass means a larger gravitational force, higher mass must also mean that higher pressure is required to maintain equilibrium. If you increase the pressure inside a star, the temperature will also increase. So, the cores of massive stars have significantly higher temperatures than the cores of Sun-like stars.
How does the color of a star depend on its mass?
The color of the star depends on the surface temperature of the star. And its temperature depends, again, on how much gas and dust were accumulated during formation. The more mass a star starts out with, the brighter and hotter it will be.
How are high mass stars different from low mass stars?
Like low-mass stars, high-mass stars are born in nebulae and evolve and live in the Main Sequence. However, their life cycles start to differ after the red giant phase. A massive star will undergo a supernova explosion. If the remnant of the explosion is 1.4 to about 3 times as massive as our Sun, it will become a neutron star.