Unit 3 Lesson 1 Flashcard

Front

To view the stars in the night sky you should use: an electron microscope, a refracting telescope, a magnifying glass, a radio telescope

Back

a refracting telescope

Front

If you see a star that is 30,000 light years away, you are viewing it as it:

Back

appeared 30,000 years ago

Front

An electromagnetic wave:

Back

has an electric field and a magnetic field

Front

Visible light is:

Back

a small part of the electromagnetic spectrum

Front

The Greeks knew that planets were different from stars because they: are larger and brighter, move in the opposite direction, are not included in any constellations, wander across the background of the other stars

Back

wander across the background of the other stars

Front

A light year is a measure of time.

Back

False

Front

The most distant objects are viewed with radio waves.

Back

True

Front

Radio telescopes can be linked together to gather more data on a space object.

Back

True

Front

The longer the wavelength, the higher the frequency.

Back

False

Front

Space telescopes are able to gather more types of waves than land-based telescopes.

Back

True