2018 Mod16 Flashcards
(26 cards)
Wait out the following terms:
A. Nuclear fusion
The process by which two or more small nuclei fuse to make a large bigger nucleus
B. Nuclear fission
The The process by which a long nuclear us is split into smaller nuclei
C. Critical mass
The The amount of isotope necessary to sustain a chain reaction
D. Absolute magnitude
The brightness of a star, correct in for distance, and a scale of -8 to +19. The smaller the number the brighter the star
E. Apparent magnitude
The brightness of a star as seen in the night sky the smaller the number the brighter the star
F. Light year
The distance like could travel along a straight line in one year
G. Galaxy
A large ensemble of stars all into reacting through the gravitational force and orbiting around a common center
From the inside to the outside, names for regions of the sun
Core, radioactive zone, convection zone, photosphere
How does the sun get it to power question in which region of the sun does this process occurs
Nuclear fusion The core
What part of the sun do you see
The photosphere
Eight 251CF nuclear us is bombard was a neutron. It breaks into a 124SN nuclear us, a 120 cd nuclear us and seven neutrons is this nuclear fission or an fusion
Fission
Two 4HE nuclear I collide and turn into a 7DE nuclear us and one Neutron. Is this nuclear fission or nuclear fusion
Nuclear fusion
For both the nuclear fusion that occurs in the sun and nuclear fission that occurs in a nuclear power plant, what can we say about the mass of the starting materials compared to the mass of what made in the end?
The mass changes, for nuclear fusion starting mass is greater for nuclear fission however the starting mass is smaller
Why is it impossible for a nuclear power plant to have a nuclear explosion?
The chain reaction is controlled
Why is the nuclear fusion considered a better option for energy production than nuclear fission
One, it creates little to no radioactive waste, two, materials are cheap, three, there is no chance of meltdown
If nuclear fusion is a better option, Why don’t you use it
It is harder to maintain, and we have not mastered it
Our sun falls into which category
Mainstream star
What is similarly exists among nervous, super nervous, and pulsing variables
Changes in their brightness
What is the big difference among no verse, supernovas, and pulsating variables
How long they last
What mostly the crab nebula
A supernova
What are the two methods for measuring the distance from earth to restart? Which of the two is most accurate? Which can be used to measure long distances?
The two methods are the parallax method in the apparent magnitude
The parallax method is the most accurate where is the apparent magnitude is used to measure long distances
Why are Cerpher variables so important for measuring one distances in the universe
Because they’re very confident
What are the four basic types of galaxies? Which tape does the Milky Way belong?
Spiral, lenticular , elliptical, irregular
the Milky Way is a spiral galaxy
Fill in the blank’s: stars group together to form, which group together to form, which group together to form, some of which group together to form.
Stars group together to form galaxies, which group to gather to form groups, which group together to form clusters, some of which group together to form superclusters.
