Earth and Space Science Unit 1 Astronomy Review

What is the primary process that generates energy in the Sun's core?

• • Nuclear fission

• • Nuclear fusion

• • Radioactive decay

• Chemical Reactions

Tags

NGSS.HS-ESS1-1

During nuclear fusion in the Sun, hydrogen nuclei combine to form which element?

• • Carbon

• • Helium

• • Oxygen

• • Iron

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What stage of life is our Sun currently in?

• • Protostar

• • Red giant

• • Main sequence

• • White dwarf

As the Sun ages, it will eventually expand into a:

• • White dwarf

• • Red giant

• • Neutron star

• • Supernova

Tags

NGSS.HS-ESS1-3

1. What determines the end stage of a  star’s Life cycle?

• 1. The temperature of the star

• 1. The mass of the star

• 1. The distance of the star from Earth

• 1. The color of the star

1. What happens to a massive star after it has exhausted its nuclear fuel and undergoes a supernova explosion?

• 1. It becomes a black hole or neutron star

• 1. It becomes a new main sequence star

• 1. It becomes a white dwarf

• 1. It ceases to exist

The cosmic microwave background radiation is best described as:

• A) A type of sound wave

• B) The light from nearby stars

• C) Leftover energy from the Big Bang

• D) Light from black holes

• • A type of sound wave

• • The light from nearby stars

• • Leftover energy from the Big Bang

• • Light from black holes

Tags

NGSS.HS-ESS1-2

What does the redshift of light from distant galaxies indicate?

• • The galaxies are moving closer

• • The galaxies are stationary

• • The galaxies are moving away

• • The galaxies are shrinking

Tags

NGSS.HS-ESS1-2

1.  In which part of a star does nuclear fusion primarily occur?

• 1. The outer shell

• 1. The star’s surface

• 1. The core

• 1. The corona

Tags

NGSS.HS-ESS1-1

Newton’s Law of Universal Gravitation states that the gravitational force between two objects depends on their masses and:

• • Their speed

• • The distance between them

• • Their volume

• • The temperature

Tags

NGSS.HS-PS2-4