How is light from the Sun

Which of the following BEST describes Fusion in the Sun?

• Gravitational collapse of solar gases.
• Chemical reaction of carbon into oxygen.
• Nuclear fission of helium into hydrogen.
• Nuclear fusion of hydrogen into helium.

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

There is a balancing act between the explosive reactions of​ (a)   and powerful inward pull of​ (b)  

• nuclear fusion
• gravity
• chemical reactions
• magnetic forces
• frictional forces

Tags

NGSS.HS-ESS1-1

What happens to the energy of a photon after every collision ?

• The energy of a photon remains constant after each collision.
• The energy of a photon decreases after each collision, either being absorbed or scattered.
• The energy of a photon is completely lost after each collision.
• The energy of a photon increases after each collision.

Tags

NGSS.HS-PS4-3

Which of the following BEST describes random walk in our Sun?

• The fixed position of solar particles in the sun

• The circular motion of solar flares.
• The unpredictable motion of particles in the Sun's interior.
• The steady orbit of planets around the Sun.

Which of the following is TRUE about the density of the sun?

• The density of the sun increases as photon moves from core to the surface

• The density of the sun deceases as photon moves from core to the surface

• The density of the sun deceases as photon moves from surface to the core

• The density of the sun stay the same photon moves from core to the surface

High energy ​ (a)   are larger than ​ (b)   but as photons ​ (c)   energy the proton is​ (d)   massive.

• Photons
• protons
• loses
• more
• neutrons
• gains
• less

Tags

NGSS.HS-PS4-3

We perceive light from the sun that is 170,000 years old but to the photon moving at the speed of light it takes how long for to reach earth?

• 10,000 years

• 0 seconds
• 1 year
• 170,000 years

Tags

NGSS.HS-PS4-1