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X-rays form part of the electromagnetic spectrum - AQA - GCSE Physics Combined Science - Question 5 - 2020 - Paper 2
Question 5
X-rays form part of the electromagnetic spectrum. Radiographers use X-rays to produce images of bones inside the body. Explain why X-rays can be used to produce im... show full transcript
Worked Solution & Example Answer:X-rays form part of the electromagnetic spectrum - AQA - GCSE Physics Combined Science - Question 5 - 2020 - Paper 2
Step 1
Explain why X-rays can be used to produce images of the bones inside the body.
Answer
X-rays are absorbed by bone due to their dense structure, allowing them to create a contrast in images. Bones absorb more X-rays compared to softer tissues, which allows radiographers to produce clear images of the skeletal system.
Step 2
Explain why the radiographer stands behind a protective screen when taking an X-ray image.
Answer
The radiographer stands behind a protective screen to minimize their exposure to radiation. Since taking many X-ray images daily can accumulate significant doses of radiation, the protective screen reduces their risk of potential health effects.
Step 3
Explain how electrical signals in the transmitter produce a signal in the receiver.
Answer
Electrical current oscillations in the transmitter produce radio waves, which travel through the air. The receiver absorbs these radio waves, inducing electrical current oscillations at the same frequency, thereby generating a signal.