Front

Who invented the telescope?

Back

it's unknown

Front

What was Galileo's contribution to the telescope?

Back

He promoted it

Front

This instrument can be thought of as a large light bucket

Back

a telescope

Front

The "collector", or "light-gathering part" of the telescope is called the _____

Back

objective

Front

If the collector is made 10 times wider, how much more light is collected?

Back

100 times more

Front

When light passes through a lens, it _____

Back

changes direction

Front

The bending of light through a lens is called _____

Back

refraction

Front

When the light comes to a focus, using a refracting telescope, it is _____

Back

upside-down, and flipped left and right

Front

The image, observed in a telescope, is _____

Back

bigger than the object

Front

The ability to separate two objects that are very close together, is called the _____

Back

resolution