Unit 3 Review

Front

What can you see with a telescope?

Back

More stars than you can see with just your eyes.

Front

Why does the Sun appear bigger and brighter than other stars?

Back

Because the Sun is the closest star to Earth.

Front

What direction does the air push on a hang glider?

Back

Up.

Front

True or False: Gravity pulls everything to Earth.

Back

True.

Front

If two stars give off the same amount of light, why does one appear brighter?

Back

The brighter star is closer.

Front

What is gravity?

Back

A natural force that pulls objects toward each other.

Front

What is a telescope used for?

Back

To see distant objects, like stars, more clearly.

Front

What is the closest star to Earth?

Back

The Sun.

Front

What happens to objects in free fall?

Back

They are pulled down by gravity.

Front

What is the effect of distance on the brightness of stars?

Back

Closer stars appear brighter than farther stars.