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 diagram is D, as it accurately represents how light from the Sun reflects off Venus and reaches the Earth, allowing us to observe the planet.
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, whereas Galileo's simple telescope was a refracting telescope that used lenses. The reflecting design allows for larger apertures and reduces chromatic aberration, improving image clarity.
Step 4
State the amplitude and wavelength of the wave.
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Answer
The amplitude of the wave is 5 cm, and the wavelength of the wave is 4 cm.
