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The photograph shows an Apollo 12 astronaut walking on the Moon. - Edexcel - GCSE Physics - Question 3 - 2011 - Paper 1
Question 3
The photograph shows an Apollo 12 astronaut walking on the Moon.
Worked Solution & Example Answer:The photograph shows an Apollo 12 astronaut walking on the Moon. - Edexcel - GCSE Physics - Question 3 - 2011 - Paper 1
Step 1
Explain why telescopes are placed above the atmosphere
Answer
Telescopes are placed above the atmosphere to reduce the interference caused by atmospheric conditions, such as air turbulence and clouds. These factors can distort the images captured from ground level, leading to less clear and detailed observations of celestial bodies. By positioning telescopes in space, such as the Hubble Space Telescope, astronomers can obtain much sharper and more accurate data.
Step 2
Explain why light pollution is less in space
Answer
In space, there is no light pollution as there are no sources of artificial light, such as street lights or buildings, which can interfere with astronomical observations. This allows for clearer visibility of distant objects in the universe, making it easier for astronomers to study celestial phenomena without the obfuscating effects of Earth's light.