Telescopes

Refracting telescopes with __________ have the best resolution.

• more powerful eyepieces

• larger mirrors

• longer tubes

• larger objectives

Reflecting telescopes have greater light-gathering ability than refracting telescopes.

• True

• False

This object is able to make distant objects appear closer.

• telephone

• teleport

• telescope

• telegraph

Telescopes that use mirrors to collect incoming light are called __________.

• nonoptical telescopes

• reflectors

• radio telescopes

• refractors

A telescope with a high-powered eyepiece will produce an image with higher resolution.

• true

• false

Tags

NGSS.HS-PS4-5

A refracting telescope uses a(n) ________ to gather light and a(n) ________ to magnify the image.

• objective lens; eyepiece

• primary mirror; focuser

• secondary mirror; refractor

• reflector; enlarger

Which of the following statements refer to radio telescopes? (Choose multiple answers)

• They receive waves that are longer than visual light waves.

• They can produce large-area images of radio sources in the heavens with single "look."

• Large reflective dish antennas are the main wave-collecting components.

• Many dishes can be combined to greatly increase the effective size of the receiver antenna.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

The main light-gathering component of a Newtonian telescope is a(n) ________.

• eyepiece

• mirror

• objective lens

• collecting tube

The main advantage of using orbital observatories like the Hubble Space Telescope is that __________.

• they are easier to use than land-based telescopes.

• they are cheaper to build than land-based telescopes.

• they can look anywhere in the universe at any time.

• they avoid the distortion and absorption of electromagnetic waves by the atmosphere.

Tags

NGSS.HS-PS4-3

The largest reflecting telescopes have mirrors made of one big segment.

• true

• false