Test2 prep quiz

Which particles make up the nucleus of an atom?

• electron

• neutron

• positron

• proton

Tags

NGSS.HS-PS1-4

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What defines a chemical element?

• The number of electrons

• The number of neutrons

• The number of protons

Different isotopes of a particular element have:

• the same number of protons but different number of neutrons

• the same number of protons but different number of electrons

• the same number of neutrons but different number of protons

• equal numbers of both protons and neutrons

Which of these elements is the most abundant element in the Universe?

• Carbon

• Hydrogen

• Iron

• Oxygen

Tags

NGSS.HS-ESS1-2

Which of these nuclei is not involved in the proton-proton chain reaction occurs in all main sequence stars?

• carbon

• hydrogen

• helium-3

• helium-4

Which elements are made within the cores of stars?

• Hydrogen

• ALL elements up to Iron on the periodic table

• Helium through Iron on the periodic table

• Elements heavier than Iron on the periodic table

Tags

NGSS.HS-ESS1-1

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When was all of the hydrogen in the Universe formed?

• During the Big Bang

• In the cores of stars in the early universe

• In supernovas

• All of the above

Tags

NGSS.HS-ESS1-2

Which of these types of stars will have the longest lives?

• low mass

• medium mass

• high mass

• mass has no effect on lifespan of a star

What is the key requirement for a star to be on the Main Sequence?

• Must be equal to or greater than the mass of our Sun

• Must be as bright as or brighter than our Sun

• Must be undergoing hydrogen fusion

• All of the above

What is luminosity?

• How bright a star appears to us on Earth

• How much energy is being emitted by the star

• How the colors of a star appear to us on Earth

Tags

NGSS.HS-ESS1-1