Light and Telescopes

Both reflecting and refracting telescopes are designed to

• break visible light into colors of the spectrum.

• separate visible light from ultraviolet and radio waves.

• gather and focus visible light.

• work better with short-wavelength radiation.

Tags

NGSS.MS-PS4-2

A ______ telescope uses a mirror to focus light onto a small area.

• reflecting

• refracting

• radio

• spectrum

A ______ telescope uses a glass to focus light. 

• reflecting

• refracting

• radio

• spectrum

What type of telescope is this?

• Refractor

• Reflector

• Non-Optical

• X- Ray

type of telescope that has concave mirrors​ ​ ​ ​ ​ ​ (a)   ​

• electromagnetic spectrum

• observatories

• active optics

• adaptive optics

• radio telescope

• reflecting telescope

• refracting telescope

What type of telescope is this?

• Refractor

• Reflector

• Non-Optical

• X- Ray

Why are many large optical telescopes located on mountains?

• to be closer to the stars

• to be above some of the atmosphere and further from city lights

• because it is easier to build telescopes on mountains

• to be closer to city lights

Tags

NGSS.MS-ETS1-1

Reflecting telescopes differ from refracting telescopes in having

• no eyepiece lens.

• two large objective lenses.

• a mirror instead of an objective lens.

• one large objective lens.

What are disadvantages of refracting telescopes (choose all)

• images are wrong color

• images are more blurry

• gravity can distort the lens

• images may be too big

Which of the following is a tool that makes distant objects appear close?

• Brush

• Star

• Planet

• Telescope