0
Stars expand and contract in size due to the balance between gravitational forces pulling inwards and internal pressures pushing outwards. When nuclear fusion in the core of a star produces energy, it creates an outward pressure that can cause the star to expand. As the star's core exhausts its fuel, the outward pressure decreases, causing the star to contract under its own gravity.
What else can I help you with?
How does the extreme temperature sensitivity of the cno cycle affect the structure of stars?
It affects the internal structure of main-sequence stars because they have very high central temperatures for the extreme temperature sensitivity of the CNO cycle to fuse hydrogen into helium.
What cause proto stars to expand?
Proto stars expand primarily due to the gravitational forces acting on them as they accumulate mass. As they gather material from their surrounding molecular cloud, the increasing pressure and temperature at their core can lead to nuclear fusion. This process generates energy that counteracts gravitational collapse, causing the proto star to expand. Additionally, the balance between gravitational contraction and thermal pressure from nuclear reactions influences their size and stability during this phase.
Why do red giant stars expand?
Because they begin to run out of fuel
When stars get older do they shrink?
As stars age, they can go through a series of changes depending on their size. Smaller stars, like our Sun, will eventually expand into a red giant and then shed their outer layers to become a white dwarf, a process that doesn't involve shrinking. Larger stars may undergo a supernova explosion, leaving behind a neutron star or black hole.
How big are the little stars?
Little stars, also known as dwarf stars, can range in size from about one-tenth the size of our sun to around half the size of our sun. These stars are smaller and cooler than average stars like our sun.
Do stars expand in size?
Stars expand in size to become red giants, when they start running low on Hydrogen fuel.
What is the opposite of contract six letters?
The opposite of "contract" is "expand." While "contract" refers to the process of becoming smaller or reducing in size, "expand" indicates the act of increasing in size, volume, or scope.
What do the words expand and contract mean?
contract is when an object is the same size as always expands is when it gets bigger
What is the difference between expand and contract?
Expand refers to an increase in size, such as blowing up a balloon. Contract refers to decreasing the size or making something tight or narrow like an artery that cannot get blood due to being too narrow.
What controls the size of the pupil in the human eye?
The size of the pupil in the human eye is controlled by the iris, which is a ring of muscle that can expand or contract to adjust the size of the pupil.
Does matter expand or contract when it is heated?
Expand
What is the oppersit word of expand?
The opposite word of "expand" is "contract." While "expand" refers to increasing in size, volume, or scope, "contract" means to decrease or become smaller. These terms are often used in various contexts, including physical dimensions and abstract concepts like business or ideas.
How does a baby born?
a unborn baby is born it comes through the vagina the vagina can expand to about the size of a baby and contract to the size if a pea this is why its u nique
How does babies born?
a unborn baby is born it comes through the vagina the vagina can expand to about the size of a baby and contract to the size if a pea this is why its u nique
What matter expand and contract?
explain how temperature affects matter using the words contract and expand
Does matter expand or contract when it's heated?
Expand
What do muscles need in order to expand and stretch?
They have to either expand or contract through movement. They can only expand and contract as far as their tissues will allow,
