The Universe Review

Front

What elements are NOT found in the sun?

Back

Mercury and Calcium.

Front

What does gravity cause nebulas to do in solar system formation?

Back

Spin and flatten, forming an accretion disk that forms stars and planets.

Front

What happens to frequency as an object approaches you?

Back

It increases as it comes toward you, then decreases as it passes.

Front

What is the purpose of a spectroscope?

Back

To collect light and diffract it into spectra to determine various data.

Front

What is Doppler shift?

Back

The wavelength in front of the object gets shorter and behind gets longer.

Front

What is the primary component of the sun?

Back

Hydrogen.

Front

What is an accretion disk?

Back

A rotating disk of dense gas and dust surrounding a newly formed star or planet.

Front

How does gravity influence the formation of stars?

Back

It pulls gas and dust together to form stars.

Front

What is the relationship between wavelength and frequency?

Back

As wavelength increases, frequency decreases, and vice versa.

Front

What is the significance of the electromagnetic spectrum in astronomy?

Back

It helps astronomers understand the composition and behavior of celestial objects.