Examination on Basic Technology
Class: Primary 3
Term: Second Term
Time: 1 Hour
Total Marks: 70

SECTION A: OBJECTIVES (40 Marks)
Instruction: Answer all questions.

1. ________ is the ability to do work. (a) Water (b) Energy (c) Food
2. Which of these is a form of energy? (a) Light (b) Stone (c) Chair
3. The sun is a major source of ________ energy. (a) electrical (b) chemical (c) solar
4. All of these are sources of energy except ________. (a) wind (b) water (c) plastic
5. Which of these is NOT a domestic use of energy? (a) Cooking (b) Ironing clothes (c) Powering a factory
6. We use ________ energy to power our television sets. (a) chemical (b) electrical (c) mechanical
7. A wristwatch gets its power from ________ energy. (a) solar (b) chemical (c) mechanical
8. The main reason we use solar panels is to convert sunlight into ________. (a) heat (b) electricity (c) wind
9. An example of a device that uses chemical energy is a ________. (a) fan (b) wall clock (c) bicycle
10. What kind of energy is stored in batteries? (a) Electrical (b) Chemical (c) Mechanical
11. Which of these is not a source of electrical energy? (a) Dams (b) Windmills (c) Firewood
12. Factories and large machines use ________ energy. (a) domestic (b) industrial (c) solar
13. ________ energy is produced when objects move. (a) Light (b) Mechanical (c) Electrical
14. Which of these is a common use of solar energy at home? (a) Driving a car (b) Heating water (c) Playing music
15. Which of the following is a source of chemical energy? (a) Sun (b) Battery (c) Water
16. Dams are a source of ________ energy. (a) solar (b) chemical (c) electrical
17. Using energy to cook food at home is an example of a ________ use. (a) commercial (b) domestic (c) industrial
18. The correct way to get light from a torch is by using ________ energy. (a) solar (b) chemical (c) mechanical
19. Windmills help to produce ________ energy. (a) electrical (b) light (c) heat
20. A car uses ________ energy to move. (a) solar (b) chemical (c) mechanical

SECTION B: THEORY (30 Marks)
Instruction: Answer any THREE questions.

1. (a) Define energy. (2 marks)
(b) List two forms of energy. (3 marks)
(c) State two general uses of energy in our daily lives. (3 marks)
(d) Give one example of a domestic use of energy. (2 marks)

2. (a) What is the source of solar energy? (2 marks)
(b) Explain two basic ways solar energy is used. (3 marks)
(c) List two uses of solar energy at home. (3 marks)
(d) Name one other form of energy apart from solar energy. (2 marks)

3. (a) What is chemical energy? (2 marks)
(b) Identify two common sources of chemical energy. (3 marks)
(c) Explain how chemical energy is used in a phone. (3 marks)
(d) List one other device that uses chemical energy. (2 marks)

4. (a) What is electrical energy? (2 marks)
(b) State two sources of electrical energy. (3 marks)
(c) Explain two uses of electrical energy in our homes. (3 marks)
(d) Name one form of energy that can be converted into electrical energy. (2 marks)

Objective Marking Scheme
Question 1 – ✅ (b) Energy
Question 2 – ✅ (a) Light
Question 3 – ✅ (c) solar
Question 4 – ✅ (c) plastic
Question 5 – ✅ (c) Powering a factory
Question 6 – ✅ (b) electrical
Question 7 – ✅ (b) chemical
Question 8 – ✅ (b) electricity
Question 9 – ✅ (b) wall clock
Question 10 – ✅ (b) Chemical
Question 11 – ✅ (c) Firewood
Question 12 – ✅ (b) industrial
Question 13 – ✅ (b) Mechanical
Question 14 – ✅ (b) Heating water
Question 15 – ✅ (b) Battery
Question 16 – ✅ (c) electrical
Question 17 – ✅ (b) domestic
Question 18 – ✅ (b) chemical
Question 19 – ✅ (a) electrical
Question 20 – ✅ (b) chemical