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Unit 2 Test
Test Description: Telescopes, Spectroscope, Radio Telecopes, Astronomers
Instructions: Answer all questions to get your test result.
1) You take a spectroscope outside one night to look at a star. The colors that you see can tell you the star's
A
Gravity
B
Brightness
C
Size
D
Composition
2) Light is the only form of energy that is
A
Formed by waves
B
Made by the sun
C
Electromagnetic
D
Visible
3) The scientist who first proposed the Heliocentric Solar System is
A
Copernicus
B
Ptolemy
C
Galileo
D
Newton
4) A pulsar could be discovered using a9n0
A
Optical Telescope
B
Spectroscope
C
Computer
D
Radio Telescope
5) Different forms of energy have different
A
Size
B
Colors
C
Chemicals
D
Wavelengths
6) When the bug on the water moves toward the shore, the waves are squeezed together in front of the bug. This is an example of the
A
Laws of Motion
B
Law of Gravity
C
Red Shift
D
Doppler Effect
7) Astronomers viewing light from distant galaxies observe a shift of spectral lines toward the red endow the visible spectrum. This shift provides evidence that
A
The Sun is cooling
B
Orbital velocities of stars are decreasing
C
The universe is expanding
D
Earth's atmosphere is warming
8) The color of the spectrum with the smallest wavelength
A
Indigo
B
Blue
C
Red
D
Violet
9) You probably would not need a radio telescope to find
A
Hidden objects
B
Big objects
C
Far away objects
D
Dark objects
10) Scientists think that there is a galaxy hidden inside a cloud of gas. What kind of instrument would be used to find the Galaxy?
A
Refracting telescope
B
Radio telescope
C
Optical telescope
D
Spectroscope
*select an answer for all questions
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