School-assessed coursework comprises a number of assessment tasks. Assessment tasks must be a part of the regular teaching and learning program and must not unduly add to the workload associated with that program. They must be completed mainly in class and within a limited timeframe.

On completion of this unit the student should be able to describe the wave model of sound and apply it to both the behaviour of sound and sound-related technology.

A summary report of selected practical activities from the student's logbook. This summary report should be based on practical activities for Outcome 1.

The summary report of practical activities should be a response to a series of questions and supplied data including data from the student logbook. The student should analyse and evaluate material, applying the key knowledge and skills from the chosen area of study.

Students should be able to complete a response based on 3-5 practical activities related to the chosen area of study, which have been recorded in the logbook.

The practical activities could include:

• activities designed to familiarise the student with a particular item of equipment or an item of key knowledge
• structured activities where students are guided by directions and asked to answer specific questions
• set experiments where student modification or extension to the design is encouraged
• teacher-directed demonstrations involving student interaction
• teacher demonstrations designed to promote students' predictive, observational and explanatory skills
• large group or class experiments involving collaborative student design and/or data collection
• data analysis or analysis of computer simulations.

Students should have access to their logbook of practical activities. Further guidelines regarding logbooks can be found on page 42 of the Physics Study Design.

Students may work in small groups to carry out the practical activities but each student should maintain their own logbook to produce an independent summary report.

Each practical activity should be completed in 80-l00 minutes of class time.

The summary report should be a written report in the range of 500-750 words and completed in a period of 80-l00 minutes of class time.

This task contributes 40 marks out of the 100 marks allocated for Unit 3.

The extent to which the response demonstrates:

• Inclusion of a clear statement demonstrating an understanding of the relevance of the experimental data.
• Organisation of the data into a convenient form with suitable graphs, charts, tables or diagrams used to demonstrate the relationship between variables and quantities measured/ observed.
• Manipulation of data resulting in the calculation of physical values. Explanation of physical relationships.
• Accurate measurements and calculations with a correct treatment of significant figures.

• Interpretation of experimental data of significance to the context.
• Inclusion of evaluations that can he reasonably inferred from the data.
• Discussion of the limitations of the experimental findings in terms of uncertainties.
• Explanation of all differences between expected and obtained relationships or physical values.

• Application of key knowledge and skills from the area of study. throughout the task, with clear definitions and explanations.
• Appropriate use of accepted physics symbols, SI units and accepted terminology
• Clear labelling of diagrams and graphs.
• Correct calculations of physical quantities significant to the context using a level of mathematics outlined in the study design.

On completion of this unit the student should be able to explain the generation, transmission. distribution and use of electric power.

On completion of this unit student should be able to analyse and interpret electronic systems as combinations of basic electronic devices.

For each of Outcomes 2 and 3 a different one of the following

tasks should be completed:

• a written report
• a test - qualitative and quantitative questions
• data analysis
• a written response to a 'media item.

The written report should be in the range of 500-750 words and completed in 80-100 minutes of class time over one week.

The test should include quantitative and qualitative questions and allow students to demonstrate their understanding of the key knowledge of the area of study. The test should be completed over 40-50 minutes, including reading time.

The analysis should use appropriate technology, such as graphics calculators and spreadsheets to investigate, analyse and interpret the supplied data and relate it to the key knowledge for the given area of study.

The data analysis should be completed in 80-100 minutes of class time over one week.

The response should analyse key arguments in a media item and evaluate the item in terms of the relevant key knowledge to the given area of study.

The media item can be provided by the teacher or if selected by students, approved by the teacher. The media item should be submitted with the written response for assessment.

Possible sources of items could include CD-ROMs, web pages, newspapers and scientific journals.

The written response should be in the range of 500-750 words and completed in 80-100 minutes of class time over one week.

Each task contributes 30 marks, totalling an overall contribution of 60 marks out of 100 marks allocated for Unit 3.

The following criteria should be used to assess the tasks. Where a test is selected, the criteria and their weighting should be used to set the test and devise a marking scheme.

The extent to which the responses demonstrate:

• Application of key knowledge and skills about the area of study_, throughout the task, with clear definitions and explanations.
• Appropriate use of accepted physics symbols, SI units and accepted terminology
• Clear labelling of diagrams and graphs.

• Analysis, interpretation and synthesis of information about the context, from a variety of sources.
• Explanation and use of significant aspects of the key knowledge and skills relevant to the area of study.
• Detailed and accurate discussion demonstrating a sophisticated level of understanding of the relationships between key knowledge and skills.

• Appropriate level of accuracy and manipulation of data, resulting in the calculation of physical values and explanation of physical relationships.
• Accurate measurements and calculations with a correct treatment of significant figures.
• Correct calculation and use of physical quantities, significant to the context at a level of mathematics outlined in the study design.