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Quiz

Physics Practice

Cole skuxx 11 perguntas

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Perguntas do quiz (11)

  1. 1The number of sunspots on the Sun varies in a cycle lasting...?
    1. AThe Sun always has the same number of spots.
    2. B26 years
    3. C26 days
    4. D11 years
    5. E11 days
  2. 2Which of the following is NOT studied by astronomers and astrophysicists?
    1. AMagnetic fields
    2. BPlanets
    3. CStars
    4. DGalaxies
    5. EGastronomy
  3. 3What facts CAN be inferred from lunar and solar eclipses?
    1. AThe Earth is a sphere and the Sun is bigger than the Earth and the Moon is smaller
      than the Earth.
    2. BThe Earth is flat and the Moon is a sphere.
    3. CThe Sun is bigger than the Earth and the Moon is smaller than the Earth.
    4. DThe Earth is a sphere with no atmosphere.
    5. EThe Sun has nuclear fusion reactions at its core.
  4. 4Which of the following is the best evidence in favour of the heliocentric model?
    1. AThe way shadows move as the Earth moves around the Sun.
    2. BThere is no such thing as the heliocentric model.
    3. CThe fact Earth has seasons as it orbits the Sun.
    4. DThere is no wind as the Earth moves through space.
    5. EApparent retrograde motion of the planets.
  5. 5Which of the following did Johannes Kepler have to assume when modelling the motion of planets in the solar system?
    1. AThe orbits are ellipses with the Sun at one focus and uniform motion.
    2. BThat Tycho Brahe’s observations were wrong and he should use those of Galileo.
    3. CThe orbits are ellipses with the Sun at one focus and non-uniform motion.
    4. DThe orbits are circular with the Sun at the center and uniform motion.
    5. EThe orbits are circular with the Sun at the center and non-uniform motion.
  6. 6Who used his laws of motion and gravity to provide a physical explanation for Kepler’s
    laws?
    1. ATycho Brahe
    2. BIsaac Newton
    3. CGalileo Galilei
    4. DJohannes Kepler
    5. ECopernicus
  7. 7When objects, like stars, are very hot they emit most of their light as what type of
    spectrum?
    1. AA continuous black-body spectrum.
    2. BAn emission spectrum.
    3. CAn absorption spectrum.
    4. DA bright spectrum.
    5. EA pulsing spectrum.
  8. 8Which of the following is the smallest object in the solar system?
    1. AThe Sun.
    2. BComets
    3. CSpherical Moons
    4. DPlanets
    5. EDwarf planets
  9. 9What is the key assumption of the theories of relativity?
    1. AThe speed of sound is constant.
    2. BThe speed of light is relative to the motion of the observer.
    3. CThe speed of awesomeness is constant.
    4. DThe speed of light varies in a gravitational field.
    5. EThe speed of light is constant.
  10. 10Why is interstellar travel as shown in science-fiction not possible in our current understanding of science?
    1. AWormholes are impossible according to general relativity.
    2. BThe Oort cloud is impossible to travel through.
    3. CHumans cannot survive without sunlight for more than a month.
    4. DThe asteroid belt is too dense to navigate.
    5. EWe cannot travel faster than light.

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Quiz sobre Physics Practice, criado por Cole skuxx em 24-06-2019.
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English
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