More cards in this set

Why are lunar and solar eclipses so rare?

What is angular size?

What is an optical telescope?

What is an aperture?

What does a bigger aperture mean?

How have new types of telescopes changed people's ideas about stars and the Universe?

What is a real image?

What is a ray diagram?

What can a ray diagram for a pinhole camera help to predict and explain?

What does a ray diagram for a pinhole camera look like?