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Leah Firmstone
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GCSE Physics (P7) Quiz on P7 Quiz - Are we alone?, created by Leah Firmstone on 23/06/2016.

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Leah Firmstone
Created by Leah Firmstone almost 9 years ago
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P7 Quiz - Are we alone?

Question 1 of 6 Question 1 of 6

1

What is the approximate number of galaxies in the universe?

Select one of the following:

  • 3 billion

  • 100 billion

  • 300 billion

Explanation

Question 2 of 6 Question 2 of 6

1

What is an exo- (or extrasolar? planet?

Select one of the following:

  • a planet that is further from the Sun than the Earth

  • any planet within our solar system

  • a planet that orbits a star other than the sun

Explanation

Question 3 of 6 Question 3 of 6

1

Exoplanets are difficult to detect and all the exoplanets discovered so far have been much bigger than our Earth.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 6 Question 4 of 6

1

What is the 'Goldilocks zone'?

Select one of the following:

  • the best chance of a solar system being able to sustain life

  • where the distance from the star has the perfect temperature (it's just right) to sustain life

  • where the distance from the star (eg. the Sun) means that it is neither too hot nor too cold to support liquid water

Explanation

Question 5 of 6 Question 5 of 6

1

Many scientists believe that, due to the sheer of the universe and the fact that there are so many , it is highly probable that there will be on another planet somewhere. Even if a small of stars have extrasolar planets orbiting them, many scientists believe that it is likely that life already elsewhere in the universe. However, as yet evidence for life - either at present or in the past - has been detected.

Select option below to complete the highlighted text

    proportion
    size
    exists
    extraterrestrial
    life
    galaxies
    no

Explanation

Question 6 of 6 Question 6 of 6

1

Voyager 1 is one of two probes launched in 1977 by NASA to study the outer solar system. It has travelled 17 billion km carrying 'The Golden Records'.

Select one of the following:

  • True
  • False

Explanation

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