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5 (a) Put a cross (✗) in the box next to your answer - Edexcel - GCSE Physics - Question 5 - 2013 - Paper 1
Question 5
5 (a) Put a cross (✗) in the box next to your answer. Which of these is the biggest. A The Solar System B a galaxy C a nebula D the Universe (b) These are fou... show full transcript
Worked Solution & Example Answer:5 (a) Put a cross (✗) in the box next to your answer - Edexcel - GCSE Physics - Question 5 - 2013 - Paper 1
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Explain why some telescopes are located outside the Earth’s atmosphere.
Answer
Telescopes located in space, such as Hubble and Compton, operate above the Earth's atmosphere, which allows them to avoid atmospheric interference like air pollution, weather conditions, and light pollution. This results in clearer and more detailed images of celestial objects. Space telescopes can also observe wavelengths that are blocked by the atmosphere, such as gamma rays and ultraviolet light, which enhances the range and quality of astronomical observations.
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Describe how modern telescopes have contributed to our understanding of the Universe.
Answer
Modern telescopes have significantly advanced our understanding of the Universe. They enable astronomers to observe distant celestial phenomena, such as the formation of galaxies, the lifecycle of stars, and the expansion of the Universe. Equipped with advanced technology, they can detect various wavelengths of light, providing insights into the composition and behavior of astronomical objects. Additionally, space telescopes minimize atmospheric distortion, yielding clearer data that helps refine our models of cosmic events. The discovery of exoplanets and the study of cosmic microwave background radiation are further examples of how modern telescopes have expanded our knowledge of the Universe.