Grade 9 Technology (TECH) Summaries – Term 4 (Via Afrika)

Grade 9 Technology Summaries Term 4 (Via Afrika): These summaries are compiled using the Via Afrika textbook’s Term 3 content. The summaries are in English, with additional notes provided by the compiler.

Contents:

Topic 3:  Electrical/electronic systems

• Unit 1:  Electrical systems and control: investigation skills
• Unit 2:  Electrical systems and control: resistor colour codes
• Unit 3:  Electronic systems and control: switches, diodes and LEDs
• Unit 4:  Electronic systems and control: transistors and sensors
• Unit 5:  Electronic systems and control: simple electronic circuits