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

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

1. ________ is the ability to do work. (a) Force (b) Energy (c) Power
2. Which of these is a common use of energy in our homes? (a) Sleeping (b) Cooking food (c) Playing
3. The property that energy cannot be created or destroyed is one of its ________. (a) forms (b) uses (c) properties
4. An example of electrical energy converting to heat energy is an electric ________. (a) fan (b) iron (c) bulb
5. Which of the following is an example of energy conversion? (a) A stone lying still (b) A light bulb changing electrical to light (c) Water boiling itself
6. Mechanical energy is related to ________ and movement. (a) sound (b) motion (c) light
7. All of these are uses of energy except ________. (a) driving a car (b) watching TV (c) sleeping
8. Which is NOT an object that uses mechanical energy? (a) A car (b) A grinding machine (c) A television
9. The main reason for using mechanical energy is for ________. (a) making noise (b) movement (c) creating heat
10. A car uses mechanical energy for ________. (a) decoration (b) motion (c) making music
11. Which of these is not a safe way to use energy at home? (a) Turning off appliances (b) Touching live wires (c) Plugging appliances properly
12. Turning off lights when leaving a room is an example of using energy ________. (a) carelessly (b) responsibly (c) wastefully
13. Grinding machines use ________ energy to crush items. (a) sound (b) mechanical (c) chemical
14. The correct step in using an electric fan safely is to ________. (a) pour water on it (b) plug it properly (c) stick your finger in it
15. Which of the following statements about energy is true? (a) It can be destroyed easily (b) It can be created from nothing (c) It can be converted from one form to another
16. Energy can be converted from one form to ________. (a) another (b) nothing (c) the same
17. All of these objects use mechanical energy except ________. (a) a bicycle (b) a clock (c) a stove
18. Which is NOT a way to use energy responsibly at home? (a) Using energy-saving bulbs (b) Leaving appliances on when not in use (c) Unplugging chargers when not charging
19. An electric kettle converts electrical energy into ________ energy. (a) light (b) sound (c) heat
20. Movement and staying at a point are uses of ________ energy. (a) heat (b) mechanical (c) electrical

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

1. (a) Define energy. (2 marks)
(b) List any three uses of energy in our daily lives. (3 marks)
(c) Explain one property of energy. (3 marks)
(d) Give one example of an object that uses energy. (2 marks)

2. (a) What is energy conversion? (2 marks)
(b) Give two examples of energy conversion. (3 marks)
(c) Name two objects that use energy conversion and state what energy they convert. (3 marks)
(d) Why is energy conversion important? (2 marks)

3. (a) What is mechanical energy? (2 marks)
(b) Describe two uses of mechanical energy. (3 marks)
(c) Name two objects that use mechanical energy. (3 marks)
(d) Give one example of mechanical energy related to motion. (2 marks)

4. (a) State two ways to use energy safely at home. (2 marks)
(b) Explain two ways to use energy responsibly at home. (3 marks)
(c) Why is it important to use energy safely at home? (3 marks)
(d) Mention one danger of misusing energy at home. (2 marks)

Objective Marking Scheme
Question 1 – ✅ (b) Energy
Question 2 – ✅ (b) Cooking food
Question 3 – ✅ (c) properties
Question 4 – ✅ (b) iron
Question 5 – ✅ (b) A light bulb changing electrical to light
Question 6 – ✅ (b) motion
Question 7 – ✅ (c) sleeping
Question 8 – ✅ (c) A television
Question 9 – ✅ (b) movement
Question 10 – ✅ (b) motion
Question 11 – ✅ (b) Touching live wires
Question 12 – ✅ (b) responsibly
Question 13 – ✅ (b) mechanical
Question 14 – ✅ (b) plug it properly
Question 15 – ✅ (c) It can be converted from one form to another
Question 16 – ✅ (a) another
Question 17 – ✅ (c) a stove
Question 18 – ✅ (b) Leaving appliances on when not in use
Question 19 – ✅ (c) heat
Question 20 – ✅ (b) mechanical