Reflective Telescope

A refracting telescope uses _______ to focus light.

• Lenses

• Mirrors

• Lasers

• Water

Reflecting telescopes use _______ to focus light.

• Lenses

• Flat mirrors

• Curved Mirrors

• A lens and lasers

Modern telescopes are reflecting because: (Choose all that apply)

• Lenses are difficult to manufacture

• Lenses are heavy and fragile

• lenses absorb light that passes through them

• Lenses require only 1 perfect surface

Tags

NGSS.MS-PS4-2

Who invented the telescope?

• Galileo
• Plato
• Ptolemy
• it's unknown

What was Galileo's contribution to the telescope?

• He invented it
• He patented it
• He discovered it
• He promoted it

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

• objective
• ocular
• eye piece
• refractor

When light passes through a lens, it _____

• reflects
• is absorbed
• bounces
• changes direction

Tags

NGSS.MS-PS4-2

The bending of light through a lens is called _____

• reflection
• refraction
• diffraction
• absorption

Telescopes that use mirrors are called _____

• refractors
• reflectors
• catadioptric
• resolving

Who was the first to develop reflecting telescopes?

• Nicolaus Copernicus
• Isaac Newton
• Galileo Galilei
• Tycho Brahe