Front

What were the first three elements to form in the early Universe as it cooled?

Back

H, He, Li

Front

What equation explains how we can make atoms from energy and energy from atoms?

Back

E=mc^2

Front

What does the redshift of a galaxy's spectrum indicate about its movement?

Back

The galaxy is moving away from us.

Front

Which part of the electromagnetic spectrum can be seen by the human eye?

Back

Visible light waves

Front

True or False: Spectrometers can be used to determine which elements are in stars.

Back

True

Front

What is the significance of the Big Bang in cosmology?

Back

It marks the beginning of the universe and the expansion of space.

Front

Define 'redshift' in the context of astronomy.

Back

Redshift is the phenomenon where light from an object is shifted to longer wavelengths, indicating it is moving away from the observer.

Front

What is the role of protons and neutrons in an atom?

Back

Protons determine the element's identity, while neutrons contribute to the atomic mass.

Front

What is the relationship between wavelength and frequency in the electromagnetic spectrum?

Back

Wavelength and frequency are inversely related; as wavelength increases, frequency decreases.

Front

What is the primary evidence for the Big Bang theory?

Back

The cosmic microwave background radiation and the observed redshift of galaxies.