Big Bang Theory and Fundamental Forces Quiz

What are the first two elements that formed as the universe expanded and cooled after the Big Bang?

• Hydrogen (H) and Helium (He)

• Oxygen (O) and Carbon (C)

• Nitrogen (N) and Oxygen (O)

• Carbon (C) and Helium (He)

Which fundamental force is responsible for holding protons and neutrons together in the nucleus?

• Strong Nuclear Force

• Gravity

• Electromagnetism

• Weak Nuclear Force

What does the redshift of light from galaxies indicate about their movement?

• They are moving away from us

• They are moving toward us

• They are stationary

• They are rotating in place

What is the approximate age of the universe according to the Big Bang Theory?

• 13.8 billion years

• 4.5 billion years

• 1.3 million years

• 100 million years

Which force is responsible for radioactive decay?

• Weak Nuclear Force

• Gravity

• Electromagnetism

• Strong Nuclear Force

What is the significance of the Cosmic Microwave Background Radiation (CMB)?

• It is leftover energy from the Big Bang

• It is energy from the sun

• It is radiation from black holes

• It is energy from supernovae

If a star’s reference absorption line is 434.7 nm and the observed line is 437.6 nm, what does this indicate about the star’s movement?

• The star is moving away from Earth

• The star is moving toward Earth

• The star is not moving

• The star is rotating

Which of the following is NOT one of the four fundamental forces?

• Friction

• Gravity

• Electromagnetism

• Weak Nuclear Force

What does the redshift formula help astronomers determine?

• The movement of stars relative to Earth

• The temperature of stars

• The brightness of stars

• The age of stars

Why is the universe still mostly hydrogen and helium today?

• Heavier elements are less common and formed later

• Hydrogen and helium are heavier than other elements

• All heavier elements were destroyed

• Hydrogen and helium are not found in stars