Galileo was one of the first scientists to use a telescope to study Venus - Edexcel - GCSE Physics - Question 1 - 2013 - Paper 1
Question 1
Galileo was one of the first scientists to use a telescope to study Venus.
(i) Which of these diagrams best shows how light waves enable us to see Venus?
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Worked Solution & Example Answer:Galileo was one of the first scientists to use a telescope to study Venus - Edexcel - GCSE Physics - Question 1 - 2013 - Paper 1
Step 1
Which of these diagrams best shows how light waves enable us to see Venus?
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Answer
The correct choice is Diagram D. This diagram accurately represents how light from the Sun reaches Venus and then reflects off it into the observer's eye on Earth, allowing us to see Venus.
Step 2
Use words from the box to complete the sentences.
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Answer
Galileo also used his telescope to observe the moons of Jupiter.
His observations provided evidence to support the heliocentric model of the Solar System.
Step 3
Describe how a reflecting telescope is different from the simple telescope which Galileo used.
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Answer
A reflecting telescope uses mirrors to gather and focus light, allowing for larger apertures and clearer images. In contrast, the simple telescope used by Galileo, known as a refracting telescope, uses lenses to bend light, which can lead to distortion and chromatic aberration, especially at higher magnifications.
Step 4
State the amplitude and wavelength of the wave.
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Answer
Amplitude of the wave = 5 cm
Wavelength of the wave = 4 cm
