Grade 7 Integrated Science – Electrical Energy Quiz
1. Which one is not a use of electricity?
2. Which one is not a source of electricity?
3. A............ produces electricity when sunlight falls on it.
4. A........... has a large generator that is driven by steam.
5. .......is the movement of electricity from one point to another through an electric circuit.
6. Circuit is complete when.........
7. A........holds the bulb and make it easier to connect wires to the bulb.
8. A......is used for allowing current to flow.
9. Which of the following is not a part of a simple electric circuit?
10. Which device is used to measure electrical current flowing through a circuit?
11. The following are parts of an ammeter.Which one is not?
12. A......... is a device used to measure potential difference across a source of electricity in a circuit.
13. A ..... is always connected across the cells.
14. An........ is always connected along the wire.
15. Some materials allow electricity to pass through them.These materials are called.......
16. Other materials do not allow electricity to pass through them.These materials are called ?
17. Which of the following is a non-conductor of electricity?
18. Which one is a conductor of electricity?
19. Which one is not a safety measures when handling electrical appliances?
20. The following are uses of electricity in everyday life.Which one is not ?
21. Which one is not a use of electricity?
22. Which one is not a source of electricity?
23. A............ produces electricity when sunlight falls on it.
24. A........... has a large generator that is driven by steam.
25. .......is the movement of electricity from one point to another through an electric circuit.
26. Circuit is complete when.........
27. A........holds the bulb and make it easier to connect wires to the bulb.
28. A......is used for allowing current to flow.
29. Which of the following is not a part of a simple electric circuit?
30. Which device is used to measure electrical current flowing through a circuit?
31. The following are parts of an ammeter.Which one is not?
32. A......... is a device used to measure potential difference across a source of electricity in a circuit.
33. A ..... is always connected across the cells.
34. An........ is always connected along the wire.
35. Some materials allow electricity to pass through them.These materials are called.......
36. Other materials do not allow electricity to pass through them.These materials are called ?
37. Which of the following is a non-conductor of electricity?
38. Which one is a conductor of electricity?
39. Which one is not a safety measures when handling electrical appliances?
40. The following are uses of electricity in everyday life.Which one is not ?
41. Which of the following is a renewable source of electrical energy?
Solar energy is a renewable source as it comes from the sun's rays which are inexhaustible.
42. Which of the following devices is used to control the flow of electrical current?
A switch is a device used to control the flow of electrical current by opening and closing a circuit.
43. What is the SI unit of electrical energy?
The Joule is the SI unit of electrical energy, representing the amount of energy transferred by one coulomb of charge.
44. Which of the following materials is a good conductor of electricity?
Copper is a good conductor of electricity due to its low resistivity, making it ideal for transmitting electrical energy.
45. What type of circuit has only one path for the flow of electric current?
A series circuit has only one path for the flow of electric current, connecting the components one after the other.
46. Which of the following energy transformations occurs in a light bulb?
In a light bulb, electrical energy is transformed into heat and light energy, resulting in illumination.
47. What is the voltage of a standard household electrical outlet in Kenya?
The standard voltage of a household electrical outlet in Kenya is 220V, providing power to appliances and devices.
48. Which of the following components converts electrical energy into mechanical energy?
A motor is a device that converts electrical energy into mechanical energy, used in various applications such as driving machinery.
49. What is the purpose of a transformer in an electrical system?
A transformer is used to regulate voltage levels in an electrical system, stepping it up or down for transmission and distribution.
50. In which type of circuit, if one component fails, the other components continue to work?
In a parallel circuit, each component has its own path for current flow, so if one component fails, the others can still operate independently.