2. | Electromagnetic Waves are also know as Electromagnetic __________ |
5. | Lippershey put the lenses into a _____ to make the first refracting telescope |
7. | “Every point of a wave front may be considered the source of secondary wavelets that spread out in all directions with a speed equal to the speed of propagation of the waves.” Is a principle of ______ |
9. | using this, Newton discovered that the sunlight is consist of seven colors |
14. | refractive ______ indicates how much light will be bent |
16. | built the first radio telescope |
17. | the longer the wavelength the ______ the frequency |
18. | ____ system is a photographic plate was the original imaging system used to record faint objects over a long period of time |
19. | the most familiar type of radio telescopes |
21. | visible and radio windows |
23. | twinkling appearance of stars |
25. | using the telescope, Galileo could see the images 20 times _____ than the human eye could see |
26. | was the first to discover that the sunlight contains all the seven colors and he did this using prism. |
29. | is a light-sensitive meter that measures the brightness and color of stars. |
31. | _______ rays are the most energetic form of light |
34. | point of ______ is where the image is created |
35. | in a refracting telescope, images are not always clear because light is being ______ |
37. | the shorter the wavelength, the _______the frequency |
38. | the amount of energy of photons depend on the __________ |
39. | designed the first refracting telescope |
41. | kind of telescope consisting of a radio receiver and an antenna |
43. | the amount of energy of photons depends on its __________ |
44. | Galileo used the first refracting telescope to study the moons of _______ |
46. | the first to make a reflecting telescope |
47. | spectrum is the __________ of light according to wavelength |