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CIE iGCSE Co-Ordinated Science P5.2.1 Detection of radioactivity Exam Style Questions Paper 2

CIE iGCSE Co-Ordinated Science Paper 2 - All Chapters

Question

Which statement about background radiation is correct?

A. All of it comes from the ground.
B. None of it comes from the air.
C. Only people who fly long distances are exposed to it.
D. Some of it comes from food and drink.

▶️ Answer/Explanation
Background radiation comes from various sources including rocks, cosmic rays, air (radon), food, drink, etc. It is not solely from ground, nor is it absent from air, nor only from flights. The correct statement is that some comes from food and drink.
✅ Answer: (D)

Question

The diagram shows a radioactive source emitting three types of ionizing radiation, X, Y and Z.
The radiation passes through an electric field between two metal plates, as shown.

Which row identifies the three types of radiation?

▶️Answer/Explanation

Ans: A

Question

The table gives information about the deflection of radiation in an electric field and in a magnetic field.

Which row is correct?

▶️Answer/Explanation

Answer: A

Explanation: Alpha particles are positively charged and are deflected by both electric and magnetic fields. Gamma radiation is not deflected by either field.

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