Basic Physics/Technology (2nd term Examination 2025) JSS 3

1. The element of a structure which connects it to the ground or more rarely water is called the

2. The movement of a body to and fro is known as

3. The highest points of motion of a simple pendulum is called the

4. If the kinetic energy of an object is 230J and the potential energy of the object is 300J. Then the mechanical energy will be

5. Silt possesses the following properties, EXCEPT

6. What type of soil do you mix with cement for building

7. The following are functions of a windows, EXCEPT

8. The lower surface of a room on which one may walk is called

9. The following are types of floor, EXCEPT

10. What is the primary function of a door?

11. The components of a door that connect the door to the door frame is called the

12. What is the primary function of a roof?

13. The strength of a welded joint depends on the _____________ of the weld.

14. Among these types of welding, one of them is a temporary fastener

15. One of these is not a roofing materials

16. What is the main advantage of using riverts for metal

17. Which of the following is a common soldering technique?

18. What is the primary purpose of electrical wiring ?

19. What is the purpose of a circuit breaker in an electric panel?

20. The type of wiring that the cables are landed on the surface of the walls called

SUBJECTIVE (Answer All)

1. _______ is used to draw wires through conduit pipes.

2. P.V.C. stands for ____________________.

3. Electric components that is used to switch either "on" or "off" current is generally called _________.

4. Another name for gas welding is ______________.

5. Two tools and materials required for soldering that I know are ________& __________.

6. In our woodwork project the abrasives helps to _________

7. Blueprints are drawn and designed by an/a _________

8. The arrangements of bricks or blocks horizontally in a way there is no vertical joints is called ____________.

9. Bungalows and fences requires what type of foundation?

10. Acceleration due to gravity is a constant and it is equal to ________.

Theory (Answer All)

1a. Calculate the mechanical energy of a 21kg item that is traveling at 10m/s speed.

1b. Suppose a pendulum has a mass of 3kg and a length of 0.7m. If it is released at the same height with the length. Find the potential and kinetic energy conserved both at the top and bottom.

2. List and explain 5 building components you know

3a. State 3 safety rules in electrical wiring

3b. Name the two main types of wiring systems and explain

4a. Mention two safety precautions observed during soldering or brazing

4b. Sketch a parallel circuit