What is the primary source of energy in the Sun?

Neutrinos and Solar Physics Concepts

Interactive Video
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Physics
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9th - 12th Grade
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Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemical reactions
Thermonuclear reactions
Gravitational contraction
Magnetic fields
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of high temperature and pressure in the Sun's core?
They prevent nuclear fusion
They cause the Sun to expand
They cool down the Sun's surface
They allow protons to overcome electric repulsion and fuse
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is produced when two protons fuse in the proton-proton chain?
Oxygen
Helium-4
Deuterium
Carbon
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of the Sun's energy is produced by the proton-proton chain?
50%
75%
85%
95%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is hydrostatic equilibrium in the context of the Sun?
The balance between gravity and pressure
The balance between radiation and convection
The balance between nuclear fusion and fission
The balance between temperature and density
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does the Sun emit radiation in various wavelengths?
Due to chemical reactions on the surface
Because of gravitational waves
Because of radiative diffusion
Due to the Sun's magnetic field
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How long can it take for a photon to travel from the Sun's core to its surface?
A few minutes
A few seconds
Up to a million years
A few years
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