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The length of the shadow cast by an object depends on the position of the Sun in the sky - Junior Cycle Science - Question e - h - 2022
Question e - h
The length of the shadow cast by an object depends on the position of the Sun in the sky. Two groups of students in Ireland, group A and group B, investigated how th... show full transcript
Worked Solution & Example Answer:The length of the shadow cast by an object depends on the position of the Sun in the sky - Junior Cycle Science - Question e - h - 2022
Step 1
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Step 3
g) Which group, A or B, carried out a better investigation? Justify your answer.
Answer
Group A carried out a better investigation because they used a pole as a constant object to create a shadow, ensuring that the length of the shadow varied only with the position of the sun. In contrast, using a student could introduce variability in height and movement, compromising the reliability of the results.
Step 4
h) Using the axes on the right, sketch the curve the students should have obtained.
Answer
The sketch should show a curve indicating that the shadow length decreases until around midday (12 noon) when the sun is at its highest point, and then increases again as the sun descends in the afternoon towards 6 p.m. The graph would typically illustrate a U-shaped curve.