Home > Subjects > Physics > Level 2 > 2.5 Atoms and radioactivity > Achievement criteria
- Subject: Physics
- AS: AS90256
- Level: 2
- Credits: 2
- External
Physics 2.5 Demonstrate understanding of atoms and radioactivity
Achievement criteria
The level of performance that you will gain will be determined by the complexity of the situation and problem-solving process.
Statements, descriptions, and explanations can be written, diagrammatic, graphical, or numerical. The descriptions or explanations could include quantitative discussions.
Minor errors (computational or transcription) will not be penalised if the process used to determine the solution is clearly indicated and is valid.
Achievement
Make sure you can:
- identify or describe aspects of phenomena, concepts, or principles
- understand the physical difference between Thomson’s and Rutherford’s model of the atom
- describe the structure of the atom
- identify the different types of radiation
- write a simple nuclear equation
- carry out a straightforward half-life calculation.
Achievement with Merit
Make sure you can:
- meet criteria for Achievement
- give explanations in terms of phenomena, concepts, principles, and/or relationships
- explain the relationship or links between significant experiments and the structure of the atom
- use correct symbols in nuclear equations
- understand the balancing process of nuclear equations
- clearly link concepts of charge and deflection in a magnetic field.
Achievement with Excellence
Make sure you can:
- meet criteria for Merit
- give concise and accurate explanations, that show clear understanding, in terms of phenomena, concepts, and/or principles. Your answers will typically have minimal irrelevancies. In other words you cannot include any explanations that are not relevant. Do not guess!
