P1 Topic 3

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Our Solar System is part of a galaxy called the:

  • Andromeda Galaxy
  • Comet Galaxy
  • Large Magellanic Cloud
  • Milky Way

A galaxy is a collection of

  • Planets
  • Stars
  • Chocolate
  • Universes

Place in order of decreasing size

  • Universe, Moon, Earth, Sun
  • Moon, Earth, Universe, Sun
  • Earth, Moon, Sun, Universe
  • Universe, Sun, Earth, Moon

What does a spectrometer do ?

  • Measure the brightness of white light
  • Split white light into many colours
  • Help people to listen to CDs
  • Allow you to look at the sun safely

Why are some telescopes located outside of the Earth's Atmosphere ?

  • So that they are closer to the stars they are looking at
  • It's cheaper to keep a telescope in space
  • To avoid light and other pollution in the Earth's atmosphere
  • Radio waves won't go through the earth's atmosphere

The stages of the evolution of our Sun, in order, will be:

  • Nebula, main sequence star, red giant, white dwarf
  • Nebula, main sequence star, black dwarf, neutron star
  • Nebula, main sequence star, red supergiant, neutron star
  • Nebula, main sequence star, red supergiant, black hole

The answer that best describes how stars like our Sun are formed is:

  • Planets and gas in space clump together forming a star
  • Gravity pulls dust into a circular ball which goes on to form a star
  • There is a big bang in space and stars form
  • Dust and gas particles are pulled together by gravity where they collide releasing heat energy

CMB and Red Shift support the Big Bang Theory. In addition

  • Red Shift would be evidence for the Steady State Theory which also says that the Universe is expanding
  • Red Shift is not evidence for the Steady State Theory which says that the Universe is not expanding
  • Red Shift shows that all stars are moving closer together as the Universe is contracting
  • Red Shift shows that the wavelength of light is getting shorter

What is CMB ?

  • Cosmic Microwave Background, the discovery that led to the Big Bang Theory being prevolent
  • Cosmic Microwave Background, the discovery that led to the Steady State Theory being prevolent
  • Cosmetic Microwave Backup, the discovery that needs to be made to support the Big Bang Theory
  • Cosmetic Microwave Backup, the discovery that needs to be made to support the Steady State Theory

Red Shift

  • Is a shift of the spectrum of light towards the red end due to stars moving away from us
  • Is a shift of the spectrum of light towards the red end due to stars moving towards us
  • Is used to describe a decrease in the wavelength of light received
  • Is used to describe an increase in the frequency of light received