Spectrum, Atoms, and Stars review

Front

What does red shift provide evidence for in astronomy?

Back

The universe is expanding.

Front

What is the name of the gas/dust clouds that form stars?

Back

Nebulas.

Front

What does blue shift mean when we observe it from a galaxy?

Back

The light is shifting towards the blue/violet end of the spectrum, meaning the galaxy is becoming closer to the observer.

Front

What color on the visible light spectrum has the highest frequency and most energy?

Back

Violet/blue.

Front

What is nuclear fusion?

Back

Two smaller atomic nuclei combine to form one larger nucleus, releasing a lot of energy.

Front

What is the electromagnetic spectrum?

Back

The range of all types of electromagnetic radiation, including visible light, radio waves, and X-rays.

Front

What is a star?

Back

A massive, luminous sphere of plasma held together by gravity, undergoing nuclear fusion.

Front

What is a supernova?

Back

A powerful and luminous explosion of a star, marking the end of its life cycle.

Front

What is a neutron star?

Back

A compact star composed mostly of neutrons, formed from the remnants of a supernova.

Front

What is the difference between a protostar and a star?

Back

A protostar is an early stage in star formation, while a star is a fully developed celestial body undergoing nuclear fusion.