Grade 11 Radiation Physics Worksheet
This worksheet covers fundamental concepts of radiation, including types of radiation, their properties, and applications, suitable for Grade 11 Physics students.
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Grade 11 Radiation Physics Worksheet
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which type of radiation consists of high-energy electromagnetic waves?
Alpha particles
Beta particles
Gamma rays
Neutrons
2. Which of the following is the most penetrating type of radiation?
Alpha particles
Beta particles
Gamma rays
All have equal penetrating power
3. Alpha particles consist of two protons and two neutrons, identical to a nucleus.
4. Beta decay occurs when a neutron in an unstable nucleus transforms into a proton, emitting an electron and an .
5. Gamma radiation can be stopped by a thin sheet of paper.
True
False
6. Ionizing radiation has enough energy to remove electrons from atoms, creating ions.
True
False
7. Briefly explain the difference between alpha, beta, and gamma radiation in terms of their composition and charge.
8. Describe one practical application of nuclear radiation in medicine or industry.
9. The diagram below illustrates the penetrating power of different types of radiation.

Based on the diagram and your knowledge, suggest appropriate shielding materials for:
a) Alpha particles:
b) Beta particles:
c) Gamma rays: