Space Review

Front

What causes the phases of the moon?

Back

The moon's revolution around the Earth.

Front

What does apparent brightness depend on?

Back

How close something is.

Front

Why do the sun, moon, and stars seem to move across the sky?

Back

Because of apparent motion.

Front

Is gravity a force that pulls objects AWAY from the Earth's surface?

Back

False.

Front

Is Earth's gravitational force on objects directed down?

Back

True.

Front

What is gravity?

Back

A force that attracts objects towards each other.

Front

What is the difference between rotation and revolution?

Back

Rotation is spinning on an axis; revolution is moving around another object.

Front

What is the role of the sun in the solar system?

Back

It is the central star that provides light and heat to the planets.

Front

What is a satellite?

Back

An object that orbits a planet.

Front

What is the difference between a planet and a star?

Back

A planet orbits a star and does not produce its own light; a star generates light and heat through nuclear fusion.