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Astronomy Quiz 2

カード 25枚 作成者: Najib (作成日: 2013/12/03)

  • The Earth's atmosphere is transparent to which of the following types of electromagnetic radiation

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  • 1

    The Earth's atmosphere is transparent to which of the following types of electromagnetic radiation

    補足(例文と訳など)

    答え

    • Radio Waves

    解説

  • 2

    Violet light differs from red light in that

    補足(例文と訳など)

    答え

    • Violet has a shorter wavelength than red

    解説

  • 3

    One major difference between radio waves and light is that

    補足(例文と訳など)

    答え

    • radio waves have lower frequencies than light waves.

    解説

  • 4

    In a telescope, to what does the term "aberration" refer?

    補足(例文と訳など)

    答え

    • A defect in design that blurs or distorts an image

    解説

  • 5

    Which of the following lists of different types of electromagnetic radiation is correctly ordered, from shortest wavelength to longest?

    補足(例文と訳など)

    答え

    • Gamma rays, ultraviolet, infrared, radio

    解説

  • 6

    Which type of telescope uses a lens as the main optical element?

    補足(例文と訳など)

    答え

    • a refracting telescope

    解説

  • 7

    Which of the following is an electromagnetic wave?

    補足(例文と訳など)

    答え

    • Microwave

    解説

  • 8

    What is the main optical element of a refracting telescope?

    補足(例文と訳など)

    答え

    • A lens

    解説

  • 9

    Schmidt telescopes are used mostly for

    補足(例文と訳など)

    答え

    • Photographing wide areas of the night sky

    解説

  • 10

    A Newtonian telescope uses

    補足(例文と訳など)

    答え

    • one curved mirror and one flat mirror at a 45° angle to the curved mirror.

    解説

  • 11

    In terms of wavelengths, gamma rays are

    補足(例文と訳など)

    答え

    • the shortest wavelength electromagnetic waves

    解説

  • 12

    The IRAS satellite, placed in orbit in 1983 to survey the whole sky, detected which kind of electromagnetic radiation?

    補足(例文と訳など)

    答え

    • Infrared

    解説

  • 13

    Radio telescopes do not have to have finely polished surfaces because:

    補足(例文と訳など)

    答え

    • The speed of radio waves is greater than visible light.

    解説

  • 14

    Spherical aberration can be corrected in a reflecting telescope by

    補足(例文と訳など)

    答え

    • grinding the mirror to a parabolic shape

    解説

  • 15

    A Newtonian telescope consists of the following types of mirrors:

    補足(例文と訳など)

    答え

    • one concave and one flat

    解説

  • 16

    A ______________ is a device that separates the light from stars and other objects according to wavelength in order to produce a spectrum.

    補足(例文と訳など)

    答え

    • spectrograph

    解説

  • 17

    How is a Cassegrain reflecting telescope constructed?

    補足(例文と訳など)

    答え

    • a concave primary and concave secondary mirror that reflected the light back up through the hole

    解説

  • 18

    Which of the following types of electromagnetic radiation has the shortest wavelength?

    補足(例文と訳など)

    答え

    • Gamma rays

    解説

  • 19

    What is the one fundamental difference between x-rays and radio waves?

    補足(例文と訳など)

    答え

    • Their wavelengths are very different

    解説

  • 20

    Chromatic aberration occurs in a refracting telescope when

    補足(例文と訳など)

    答え

    • the different colors of light do not all come to the same focal point

    解説

  • 21

    Who was the first astronomer to build and use a telescope to observe the night sky?

    補足(例文と訳など)

    答え

    • Galileo

    解説

  • 22

    Who first showed that light does not travel at infinite speed?

    補足(例文と訳など)

    答え

    • Ole Roemer 1675

    解説

  • 23

    Refraction is

    補足(例文と訳など)

    答え

    • the bending of light as it enters a transparent material at an angle more perpendicular to the surface of the material.

    解説

  • 24

    Visible wavelengths of electromagnetic radiation have a range of wavelengths of

    補足(例文と訳など)

    答え

    • 400 to 700 nm

    解説

  • 25

    Who first proved that light is a wave?

    補足(例文と訳など)

    答え

    • Thomas Young

    解説

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