Unit 5 Review

Front

What does the Big Bang Theory explain?

Back

The origin of the universe.

Front

What happens to the pull of gravity as the distance between two objects increases?

Back

The pull of gravity decreases.

Front

If Earth's mass was cut in half, what would happen to your weight?

Back

Your weight would decrease because gravitational force decreases.

Front

What determines the length of a planet's day?

Back

The time it takes to rotate on its axis.

Front

How does the size of our sun compare to other stars?

Back

Our sun is considered medium size with medium temperature.

Front

What is gravity?

Back

A force that attracts two bodies towards each other.

Front

What is the relationship between mass and gravitational force?

Back

Gravitational force increases with mass.

Front

What is the effect of distance on gravitational force?

Back

Gravitational force decreases as distance increases.

Front

What is rotation in terms of planets?

Back

The spinning of a planet on its axis.

Front

What is revolution in terms of planets?

Back

The movement of a planet around the sun.