1 (a) Figure 1 shows the parts of the electromagnetic spectrum - Edexcel - GCSE Physics Combined Science - Question 1 - 2021 - Paper 1
Question 1
1 (a) Figure 1 shows the parts of the electromagnetic spectrum.
Which row of the table names the parts J, K and L of the electromagnetic spectrum?
A
J | K | L
in... show full transcript
Worked Solution & Example Answer:1 (a) Figure 1 shows the parts of the electromagnetic spectrum - Edexcel - GCSE Physics Combined Science - Question 1 - 2021 - Paper 1
Step 1
Which row of the table names the parts J, K and L of the electromagnetic spectrum?
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Answer
The correct row is A: J is infrared, K is radio, and L is ultraviolet.
Step 2
All electromagnetic waves can travel in a vacuum. Which of these is the same for all electromagnetic waves travelling in a vacuum?
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Answer
The answer is C: speed. All electromagnetic waves travel at the speed of light in a vacuum.
Step 3
State one way that x-rays are useful to humans.
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Answer
X-rays are useful for medical imaging as they can help doctors to see inside the body.
Step 4
State one way that x-rays are harmful to humans.
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Answer
X-rays can cause cancer due to their ionizing radiation that can damage DNA.
