PHY.SCI Quiz 1

According to the big bang theory, how much time was needed to produce the light elements hydrogen and helium?

• 13.8 billion years

• 5 hours

• 7 million years

• 3 minutes

Which of the following refers to the process of producing the light elements such as helium?

• Supernova nucleosynthesis

• Big bang nucleosynthesis

• Cosmic ray spallation

• Rp-process

What happens when something redshifts?

• Its wavelength increases

• Its energy increases

• Its frequency increases.

• Its size increases.

Who was the scientist who used the redshift of light from galaxies to calculate their velocities and distances from the Earth?

• Robert Wilson

• Edwin Hubble

• Arno Penzias

• Vesto Slipher

Which is the lightest element?

• hydrogen

• lithium

• deuterium

• helium