Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
A well known infrared telescope is ____________. A diffraction grating consists of Interference can be shown by using Spitzer many closely spaced parallel slits. water waves. light waves. sound waves. What does a prism do? Which of these electromagnetic waves has the shortest wavelength? Light waves are ____ waves. separates visible light into several colors Which of the following types of light can tell us about an object’s temperature? infrared donnayoung.org gamma transverse waves. Which scientist was the first to use the telescope in astronomy? A magnifying glass is a Galileo converging lens. The three primary colors of pigments are Compared to the wavelength of ultraviolet waves, the wavelength of infrared waves is The color of an opaque object is determined by the light that is magenta, cyan, and yellow. longer. reflected. The Hertz is a If sunlight were green instead of white, the most comfortable color to wear on a hot day would be Different colors of light correspond to different light unit of frequency. A refracting telescope produces an image using a(n) ____. objective lens donnayoung.org green Electromagnetic waves with higher frequencies have wavelengths that are shorter wavelength Which of the following is NOT a transverse wave? A. light. D. all of the above. B. radio wave. E. none of the above C. sound sound Which color has the longest wavelength? When a wave bends around an object such as a star, this is called Stellar distances are usually expressed in what units? diffraction. light-years Electromagnetic waves What information does a star’s spectrum offer about the star? A well known radio telescope is ____________. can travel through a vacuum. chemical composition VLA Which of the following are fundamentally different from the others? A. Gamma rays D. Light waves B. Radio waves E. X-rays C. Sound waves Gamma rays, X-rays, visible light, and radio waves are all types of ____. Light does not pass through what kind of materials? electromagnetic radiation opaque red sound donnayoung.org A converging, or convex, lens When two or more waves are at the same place at the same time, the resulting effect is called The primary purpose of polarized sunglasses is_____. A converges parallel rays of light. B. refracts parallel rays of light. C. is thicker in the center than at the edges. D. bends parallel rays of light so they cross at a single point. A reflecting telescope produces an image using a(n) ____. concave mirror Which color has the most energetic photons? violet donnayoung.org interference The distance between successive identical parts of a wave is called its wavelength Which of the following types of light might tell us about how our universe began and might end? microwaves to block glare from reflections. A wave created by shaking a rope up and down is called a Transverse wave The three primary colors of light are_____. red, green, and blue. An image of a distant object formed by a single converging (convex) lens Which of the following is NOT an electromagnetic wave? A. Sound B. Radio C. Light D. Infrared E. X-ray Which of the following types of light can allow us to “see” the energy given off when blackholes collide with each other? A. is upside down. D. can be projected on a wall. B. C. can be focused on a screen. is real. What was the first space telescope built by NASA? Hubble Which of the following types of light can allow us to “see” blackholes? x-rays donnayoung.org sound The image your eye receives is Upside down Which of the following is NOT a form of electromagnetic radiation? A. radio waves B. gravity C. gamma rays D. visible light gravity Gamma rays If the sun were to disappear right now, we wouldn't know about it for 8 minutes because it takes 8 minutes for light to travel from the sun to Earth. Diffraction occurs for A. radio waves. D. electron beams. B. X-rays. E. all of the above. C. light. All of them Compared to its speed in air, the speed of light in water is slower Compared to the velocity of radio waves, the velocity of visible light waves is The same Heat lamps give off mostly infrared donnayoung.org What advantage do space telescopes have over telescopes used on Earth? They are not affected by Earth’s atmosphere. Electromagnetic waves are transverse waves. A well known visible light telescope is ____________. Hubble The main difference between a radio wave and a light wave is its wavelength If two polarizing filters are held with their polarization axes at right angles to each other, the amount of light transmitted compared to when their axes are parallel is zero A well known X-ray telescope is ____________. Chandra