Sciece Ch.25 Chapter Test
Terms
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- A rainbow is a example of...
- continuous spectra
- The comparative brightness of a star observed if the stars were at the same distance is called...
- Abolute Magnitude
- The type of electromagnetic energy used to 'see' the center of our galaxy is...
- RADIO WAVES
- The camparative brightness of a star as seen by the observer is called
- Apparent Magnitude
- The lightgathering capacity of a telescope depends on...
- the size of the objective lens
- Name two things that relate to the true brightness of a star...
-
temperature
size - The type of electromagnetic energy that would keep food warm is...
- infrared rays
- Forms of electromagnetic energy are differnt beucase they have differnt...
- wavelengths
- The further away a star is, the _______ the parallax will be
- lesser
- White light can be broken into a band of colors called the
-
spectrum or
spectra - The largest single mirrar telescope is _______ inches in diameter
- 200
- A telescope that uses a convex lens is called a _________ telescope
- refracting
- The Big Dipper can be used to find the...
- north star
- The group of galaxies to which we belong is called the...
- local group
- A ________ is a very distant and a powerful source of radio waves
- quasars