AQA Trilogy GCSE Science Science
Mission Objectives
State the 3 types of nuclear radiation.
Rank the range and ionising ability of the 3 different types of radiation.
Describe the penetration power of the 3 types of radiation.
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Words and meanings to learn
penetrating power
The ability of a type of radiation to pass through materials.
alpha radiation
consists of alpha particles, which are made up of 2 protons and 2 neutrons (the same as a helium nucleus)
beta radiation
Beta radiation consists of beta particles, which are fast-moving, high-energy electrons
ionising power
the ability of radiation to knock electrons out of atoms, turning them into ions.
gamma radiation
Gamma radiation is a type of electromagnetic wave with no mass and no charge
Samantha is a dedicated and accomplished science educator with over 15 years of leadership experience in the field, coupled with a strong background in scientific analysis. She has a proven track record of strategically managing educational departments, driving operational efficiencies, and nurturing collaborative relationships with stakeholders.
Samantha previously served as the Head of Chemistry and Sixth Form Tutor, Ilkley Grammar School, Ilkley with extensive Key Stage 4 and 5 teaching experience and leadership. In addition to her teaching and leadership roles, she is also an examiner for AQA, providing her with valuable insight into assessment standards and exam specifications.
In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket, where she's enthusiastically honing her skills both on and off the pitch!
Geiger-Müller Counter (Geiger Counter):
How it works: This device is used in class demonstrations to measure radiation from different sources. When brought near a radioactive source, the Geiger counter produces clicks or a visual display representing radiation levels.
Application: This model can show the different penetration abilities of alpha, beta, and gamma radiation:
Place paper over a source to stop alpha radiation.
Use aluminium to stop beta radiation.
Demonstrate that gamma radiation requires thicker shielding, such as lead
Expert film
Mission assignment film
