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Most of the energy we receive on Earth comes from the Sun - Edexcel - GCSE Physics - Question 6 - 2011 - Paper 1
Question 6
Most of the energy we receive on Earth comes from the Sun. The bar chart shows the percentages of solar radiation reflected by some materials. percentage of solar r... show full transcript
Worked Solution & Example Answer:Most of the energy we receive on Earth comes from the Sun - Edexcel - GCSE Physics - Question 6 - 2011 - Paper 1
Step 1
Complete the sentence by putting a cross (X) in the box next to your answer.
Answer
To estimate the percentage of solar radiation reflected by a rough piece of coal, we need to analyze the bar chart. The bar for 'black road' suggests a low reflectivity, while materials like 'white snow' show a high reflectivity. Based on the bar chart, coal is likely to reflect around 10% to 20% of solar radiation. Therefore, the most appropriate cross should be placed in box A (10%).