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Big History Unit 3 Review Flashcards | StudBud
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Big History Unit 3 Review
Big History Unit 3 Review
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Big History Review
Flashcards
31 cards
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Practice quiz
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Questions
31
Answers
1
All of the following are true EXCEPT: Without stars we would not have...
the Big Bang
light
heat
the heavy elements needed for life
2
What is Threshold 3?
Stars light up
the Big Bang
New Chemical Reactions
New Chemical Elements
3
Marie Curie is well known for discovering which two elements?
Uranium and Radon
Polonium and Radium
Hydrogen and Helium
Iron and X-ray
4
What was the Universe like before stars formed?
cold, dark, boring, and relatively empty
we don't know
bright and hot with pockets of activity
10 million degrees Celsius and rising
5
Which stars eventually run out of fuel?
All stars
High mass stars only
Just red giants
Low mass stars only
6
What are the ingredients, Goldilocks Conditions, and new complexity for Threshold 2?
Gravity+heat+density of matter= new chemical elements
Gravity + Helium + Hydrogen= Stars Light Up
H, He, gravity+heat & tiny density variations=stars light up
We don't know + we don't know= Stars light up
7
Which one of the four fundamental forces compresses clouds of elements to create stars?
weak nuclear forces
strong nuclear forces
electromagnetism
gravity
8
How long does the Sun have left to "live"?
no one knows
10 million years
5 billion years
10 billion years
9
What is the low energy radiation that is spread through the Universe after the Big Bang?
Microwaves
Radio Waves
Cosmic Background Radiation
Electromagnetic Waves
10
How long is our Sun's lifespan?
10 billion years
10 million years
380,000 years
1 billion years
11
What is the evidence for variations in density of matter and the temperature needed for stars?
Cosmic Background Radiation
The Big Bang
Electromagnetism
the Periodic Table
12
What does the temperature have to be below in order for atoms to form?
1000 degrees Fahrenheit
5000 degrees Kelvin
10 million degrees Celsius
3000 degrees Celsius
13
All of stars begin and end as what?
nebula
water
hydrogen
all elements
14
What is fusing in the core of a star?
Hydrogen protons
Carbon dioxide
Oxygen nuclei
Uranium
15
How long do low mass stars "live"?
thousands of years
around 380,000 years
billions to trillions of years
no one knows
16
What does a high mass star become when it "dies"?
Stellar nebula
Black hole or neutron star
Red Giant
planetary nebula
17
How is the periodic table organized?
by atomic number and grouped by common characteristics
elements are arranged by the atomic mass
Elements are listed alphabetically
elements are grouped by type and density
18
What is the study of composition, structure, properties, and change of matter?
Physics
Biology
Chemistry
Calculus
19
Low mass stars produce elements up to what?
Hydrogen
Iron
Uranium
Helium
20
How are elements with more protons than iron formed?
there is no elements with more protons than iron
when iron is burned as fuel for a dying star
when iron is melted in the core of a star
in a supernovae
21
What is a small unit of matter composed of protons, electrons, and neutrons?
Quark
Diatom
Atom
Particle
22
Stars spend most of their lives in which stage?
Red Giant
Planetary Nebula
Main Sequence
Stellar Nebula
23
What temperature is necessary for protons to overcome the repulsion of their charges and fuse?
5 million degrees Kelvin
10 million degrees Celsius
1 million degrees Celsius
5 billion degrees Fahrenheit
24
How did Mendeleev come up with the structure of the periodic table?
His students figured it out and he just published it
by studying the globe and how information wraps around
the game of solitaire
by weighing each element
25
What are the ingredients and goldilocks conditions for Threshold 3?
we don't know+we don't know= new chemical elements/chemistry
we don't know+dying stars+heat= new chemical elements
gravity+hydrogen+helium+heat= new chemical elements
aging/dying stars+no fuel/stars collapsing = chemistry
26
High mass stars produce elements up to...?
Iron
Uranium (and all naturally occurring elements)
Helium
Hydrogen
27
H and He make up what percentage of the Universe?
75% and all others make up 25%
50% and all other elements make up the other 50%
60% and all the others make up 20%
98% with all others making up 2%
28
What is the fundamental force of attraction between any two objects that have mass?
Weak Nuclear Force
Electromagnetism
Gravity
Strong Nuclear Force
29
What type of stars have a longer life span?
Low Mass
The all have the same life span
High Mass
Medium Density
30
When did stars begin to form?
10 million years ago
we don't know
100-200 million years after the Big Bang
seconds after the Big Bang
31
What type of reaction is happening in the core of stars?
nuclear fission
gravity
nuclear expansion
nuclear fusion
