5. Nuclear physics
A section of Physics, 5054
Listing 10 of 279 questions
A highly radioactive source that emits beta-particles is placed a few centimetres away from a detector, as shown in . radioactive source metal casing detector counter Not to scale State the name of the particle which has the same mass and charge as a beta-particle. State and explain why the metal casing in is used. State and explain what happens to the number of particles detected in a minute as the radioactive source is moved: a few centimetres further away from the source more than a metre away from the source. A nucleus of strontium-90 (Sr-90) decays by beta emission to a nucleus of yttrium (Y). Complete the decay equation for this decay. 38Sr → Y + –1 β Nuclear fusion and nuclear fission both release large amounts of energy. Describe how the process of nuclear fusion differs from the process of nuclear fission. Describe the conditions needed for nuclear fusion to take place.
5054_s21_qp_22
THEORY
2021
Paper 2, Variant 2
View
Questions Discovered
279