Lesson Two : Activities and Quizzes
Activity 1: QuizWhat are three tools that optical astronomers use to make their observations?
Binoculars, antennas, and their eyesGlasses, dishes, telescopesBinoculars, telescopes, and their eyesGlasses, antennas, and dishes
What can astronomers study easily through radio astronomy that is difficult to study through optical astronomy?
The temperatures of objectsThe electric and magnetic fields of objectsThe chemical compositions of objectsObjects' motions through space
receiving telescopes and reflecting telescopesrefracting telescopes and rendering telescopesreflecting telescopes and refracting telescopesrefereeing telescopes and reflecting telescopes
Intensity maps of the stellar regionsPhysical appearances of stellar and galactic sourcesAudible informationRadio waves
Receiver, dish, antenna, amplifierDish, antenna, reciever, amplifierAntenna, dish, amplifier, recieverDish,reciever, antenna, amplifier
Diameter of telescope and wavelength being analyzedWeather conditionsDistance of the source from the antennaThe power of the amplifier used to enhance the signal
Which of the following is NOT an advantage of radio astronomy?
Interstellar dust is not a problem.It can be performed during the daytime.It is not as dependent on weather conditions.Longer wavelengths make radio data easier to collect.
What is the difference between a single radio dish and an interferometer?
Interferometers use multiple dishesInterferometers do not use dishesSingle radio dishes provide images with higher resolutionInterferometers use larger radio dishes