Question

Can you help on one question?

Answer 1

@minnie♥mouse

Answer 2

c :)

Answer 3

u sure?:)

Answer 4

1. What does a prism do? (1 point)
(0 pts) combines the colors of visible light into white light
(0 pts) separates sunlight into ultraviolet and infrared radiation
(1 pt) separates visible light into several colors
(0 pts) changes the wavelength of electromagnetic waves
1 /1 point
2. What information does a star’s spectrum offer about the star? (1 point)
(0 pts) size
(1 pt) chemical composition
(0 pts) age
(0 pts) none of the above
1 /1 point
3. What will happen to an object’s wavelength as the object moves toward you? (1 point)
(1 pt) The wavelength will be shortened.
(0 pts) The wavelength will be lengthened.
(0 pts) The wavelength will not change.
(0 pts) The wavelength will vary.
1 /1 point
4. Using the Doppler effect, astronomers can determine a star’s ____. (1 point)
(0 pts) temperature
(0 pts) chemical composition
(1 pt) movement toward or away from Earth
(0 pts) age
1 /1 point
5. Which famous scientist first used a telescope for astronomical observations? (1 point)
(0 pts) Albert Einstein
(0 pts) Isaac Newton
(1 pt) Galileo Galilei
(0 pts) George Hale
1 /1 point
6. Chromatic aberration ____. (1 point)
(0 pts) blocks stars from most telescopes
(1 pt) weakens the images of stars
(0 pts) makes stars appear much larger than they are
(0 pts) makes images of stars appear sideways
1 /1 point
7. What was the first space telescope built by NASA? (1 point)
(1 pt) Hubble Space Telescope
(0 pts) Chandra X-Ray Observatory
(0 pts) Compton Gamma-Ray Observatory
(0 pts) James Webb Space Telescope
1 /1 point
8. What advantage do space telescopes have over telescopes used on Earth? (1 point)
(0 pts) They are much cheaper to build.
(1 pt) They are not affected by Earth’s atmosphere.
(0 pts) They do not need lenses or mirrors to gather light.
(0 pts) They last longer.
1 /1 point

Answer 5

is that what you need help on??