Earth and Space Mid-Term Review 24

Front

What is the process that marks the birth of a star?

Back

Nuclear fusion starts.

Front

What happens to the light of a star moving towards Earth?

Back

It shifts towards the blue side of the electromagnetic spectrum.

Front

Which type of star is the coldest?

Back

Red Star.

Front

What happens to the light of a star moving away from Earth?

Back

It shifts towards the red side of the electromagnetic spectrum.

Front

Who formulated the Universal Law of Gravitation?

Back

Newton.

Front

What is a nebula?

Back

A large cloud of gas and dust in space, often the birthplace of stars.

Front

What is a protostar?

Back

A stage in star formation where a nebula begins to collapse under its own gravity.

Front

What is nuclear fusion?

Back

The process by which two light atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

What is the electromagnetic spectrum?

Back

The range of all types of electromagnetic radiation, including visible light.

Front

What does a blue shift in light indicate?

Back

An object is moving towards the observer.