Question

Create a technology grade 9 south african western cape test consisting out of 50 marks with topics including different types of plastic, food preservation, galvanizing and electrical circuits

Answer 1

### Grade 9 Technology Test

**Duration**: 1 hour
**Total Marks**: 50

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**Instructions**: Read each question carefully and answer all questions. Ensure your answers are clear and concise. Good luck!

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### Section A: Different Types of Plastic (15 Marks)

**1.** Match the type of plastic with its correct use. (5 marks)
a) PET (Polyethylene Terephthalate)
b) HDPE (High-Density Polyethylene)
c) PVC (Polyvinyl Chloride)
d) PS (Polystyrene)
e) LDPE (Low-Density Polyethylene)

1. Plastic bags
2. Bottles for soft drinks
3. Pipes and fittings
4. Food containers
5. Packaging materials

**2.** Explain why recycling plastics is important. (5 marks)
(Your answer should include at least two reasons.)

**3.** List and describe two disadvantages of using plastic. (5 marks)
(Provide a brief explanation for each disadvantage.)

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### Section B: Food Preservation (10 Marks)

**4.** Define food preservation and explain its purpose. (3 marks)
(Purpose can include health, safety, and quality aspects.)

**5.** Name and describe two methods of food preservation. (7 marks)
(Include the process and an example for each method.)

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### Section C: Galvanizing (10 Marks)

**6.** What is galvanizing? Describe the process and its purpose. (6 marks)
(Include details about the materials involved and the benefits of galvanizing.)

**7.** Discuss one application of galvanized steel in everyday life and explain why galvanizing is preferred for that application. (4 marks)

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### Section D: Electrical Circuits (15 Marks)

**8.** Draw and label a simple series circuit that includes a battery, a switch, and a light bulb. (5 marks)

**9.** Explain the difference between a series circuit and a parallel circuit. (5 marks)
(Include at least two main differences.)

**10.** In a series circuit with a 9V battery and two identical light bulbs, if one bulb burns out, what happens to the circuit and why? (5 marks)

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**End of Test**

### Marking Rubric:

#### Section A: Different Types of Plastic
- Question 1: 1 mark for each correct match (5 marks total)
- Question 2: 2 marks for each reason (5 marks total)
- Question 3: 2.5 marks for each disadvantage (5 marks total)

#### Section B: Food Preservation
- Question 4: 3 marks for definition and purpose
- Question 5: 3.5 marks for each method and example (7 marks total)

#### Section C: Galvanizing
- Question 6: 6 marks for process and purpose description
- Question 7: 4 marks for application and reasoning

#### Section D: Electrical Circuits
- Question 8: 5 marks for correct drawing and labels
- Question 9: 2.5 marks for each difference (5 marks total)
- Question 10: 5 marks for correct explanation

### Total: 50 Marks

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Be sure to review your answers before handing in the test!