4 (a) Complete the sentence by putting a cross (✗) in the box next to your answer - Edexcel - GCSE Physics - Question 4 - 2015 - Paper 1
Question 4
4 (a) Complete the sentence by putting a cross (✗) in the box next to your answer.
A student correctly estimated the length of a bee.
The length of a bee is about ... show full transcript
Worked Solution & Example Answer:4 (a) Complete the sentence by putting a cross (✗) in the box next to your answer - Edexcel - GCSE Physics - Question 4 - 2015 - Paper 1
Step 1
Complete the sentence by putting a cross (✗) in the box next to your answer.
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Answer
The length of a bee is about 2.0 cm (B).
Step 2
Which of these colours appears in a pure spectrum of visible light?
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Answer
The colour that appears in a pure spectrum of visible light is white (C).
Step 3
Describe differences in the sensitivity to radiation of a human eye and a bee eye.
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Answer
The human eye is sensitive to a narrower range of visible light compared to the bee eye. Bees can detect ultraviolet light, which is invisible to humans. This allows bees to see patterns on flowers that help them locate nectar, while humans are limited to the visible spectrum.
Step 4
Complete the sentence by putting a cross (✗) in the box next to your answer.
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Answer
The frequency of a bee's wings flapping, which is 230 Hz, is classified as sound (C).
Step 5
Calculate the average speed of the bee.
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Answer
To find the average speed of the bee, we use the formula:
Suggest what the scientist means by this sentence.
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Answer
The scientist is indicating that ultraviolet radiation can cause harm to human skin cells, leading to issues like sunburn, while bees are adapted to utilize UV radiation for survival, using it to find food sources and navigate.
