Quiz
Physics Practice
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Fragen in diesem Quiz (11)
1The number of sunspots on the Sun varies in a cycle lasting...?
- AThe Sun always has the same number of spots.
- B26 years
- C26 days
- D11 years
- E11 days
2Which of the following is NOT studied by astronomers and astrophysicists?
- AMagnetic fields
- BPlanets
- CStars
- DGalaxies
- EGastronomy
3What facts CAN be inferred from lunar and solar eclipses?
- AThe Earth is a sphere and the Sun is bigger than the Earth and the Moon is smaller
than the Earth. - BThe Earth is flat and the Moon is a sphere.
- CThe Sun is bigger than the Earth and the Moon is smaller than the Earth.
- DThe Earth is a sphere with no atmosphere.
- EThe Sun has nuclear fusion reactions at its core.
- AThe Earth is a sphere and the Sun is bigger than the Earth and the Moon is smaller
4Which of the following is the best evidence in favour of the heliocentric model?
- AThe way shadows move as the Earth moves around the Sun.
- BThere is no such thing as the heliocentric model.
- CThe fact Earth has seasons as it orbits the Sun.
- DThere is no wind as the Earth moves through space.
- EApparent retrograde motion of the planets.
5Which of the following did Johannes Kepler have to assume when modelling the motion of planets in the solar system?
- AThe orbits are ellipses with the Sun at one focus and uniform motion.
- BThat Tycho Brahe’s observations were wrong and he should use those of Galileo.
- CThe orbits are ellipses with the Sun at one focus and non-uniform motion.
- DThe orbits are circular with the Sun at the center and uniform motion.
- EThe orbits are circular with the Sun at the center and non-uniform motion.
6Who used his laws of motion and gravity to provide a physical explanation for Kepler’s
laws?- ATycho Brahe
- BIsaac Newton
- CGalileo Galilei
- DJohannes Kepler
- ECopernicus
7When objects, like stars, are very hot they emit most of their light as what type of
spectrum?- AA continuous black-body spectrum.
- BAn emission spectrum.
- CAn absorption spectrum.
- DA bright spectrum.
- EA pulsing spectrum.
8Which of the following is the smallest object in the solar system?
- AThe Sun.
- BComets
- CSpherical Moons
- DPlanets
- EDwarf planets
9What is the key assumption of the theories of relativity?
- AThe speed of sound is constant.
- BThe speed of light is relative to the motion of the observer.
- CThe speed of awesomeness is constant.
- DThe speed of light varies in a gravitational field.
- EThe speed of light is constant.
10Why is interstellar travel as shown in science-fiction not possible in our current understanding of science?
- AWormholes are impossible according to general relativity.
- BThe Oort cloud is impossible to travel through.
- CHumans cannot survive without sunlight for more than a month.
- DThe asteroid belt is too dense to navigate.
- EWe cannot travel faster than light.
11The Sun is how many times more massive than the Earth?
- A33,000,000
- B330,000
- C300
- D33,000
- EThe Sun is made of special stellar matter so doesn’t have mass.
Informationen
- Beschreibung
- Quiz am Physics Practice, erstellt von Cole skuxx am 24/06/2019.
- Autor
- Cole skuxx
- Sprache
- English
- Aufrufe
- 0
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