5.2.6. Safety precautions
A subsection of Physics, 5054, through 5. Nuclear physics
Listing 4 of 4 questions
A scientist has three radioactive sources. The first source emits only alpha-particles, the second source emits only beta-particles and the third source emits only gamma-rays. Explain how the scientist demonstrates that the three types of radiation have different penetrating powers. In your account • draw a diagram of the apparatus used, • state what materials are used to show the different penetrating powers, • explain how the apparatus is used. State two different safety precautions the scientist must follow when handling the radioactive sources. Explain why the half-lives of the radioactive sources used in the demonstration should be greater than 1 second. shows radiation moving into the magnetic field between the poles of a strong magnet. N S radioactive source radiation The radioactive source emits alpha-particles, beta-particles and gamma-rays. For each type of radiation, describe the path taken by the radiation. You may draw a diagram to help your explanation. represents three different nuclei. nucleus A nucleus B nucleus C neutron proton State and explain which nuclei are from different isotopes of the same element.
5054_s08_qp_2
THEORY
2008
Paper 2, Variant 0
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