8th Grade Fall Final review

Front

What is absolute magnitude?

Back

A measure of how bright a star would be if it were seen from a standard distance.

Front

What happens to the redshift of an object moving very fast away from Earth?

Back

It experiences more redshift than an object moving very slowly away from Earth.

Front

How do you calculate mass using force and acceleration?

Back

Using the formula F=ma, where F is force, m is mass, and a is acceleration.

Front

What does F=ma represent?

Back

Newton's 2nd law of motion.

Front

What do all stars start as?

Back

Gas and dust in a nebula.

Front

What is apparent magnitude?

Back

The brightness of a star as seen from Earth, without considering distance.

Front

What is redshift?

Back

The phenomenon where light from an object moving away from an observer is shifted to longer wavelengths.

Front

What is blueshift?

Back

The phenomenon where light from an object moving towards an observer is shifted to shorter wavelengths.

Front

What is a nebula?

Back

A large cloud of gas and dust in space, where stars are born.

Front

What is the unit of force in the metric system?

Back

Newton (N).