Physics (2nd term Examination 2025) SS1

1. What is the scientific term for the "study of the movement of heat" ?

2. Which of the following is characteristics of a vector quantity?

3. What is the unit of measurement for force in S.I. unit

4. Which of the following types of energy is associated with an object's motion?

5. What is the term for the "force that opposes motion between two surfaces that are in contact" ?

6. What is the SI unit of stress ?

7. Which of the following types of energy is associated with an object's motion ?

8. Which of the following is a characteristics of a scalar quantity?

9. A force that act towards the center of a circle, keeping the object on its circular path is called

10. In the relationship of the units under pressure 1bar is equal to

11. Heat transfer through direct contact between particles or molecules is known as

12. If mass is given as 2.1kg, then force =

13. Strain is the same thing as

14. The symbol of stress is pronounced as

15. One of these is not the property of solid

16. Matter is made up of tiny particles which are as follows,EXCEPT

17. One of these is not a property of a liquid

18. Fluid at rest is also known as

19. _________ can simply be defined as force per unit charge

20. Solving for displacement on non-fat surface, you will use Pythagoras theory to get the magnitude while you get the direction with

SUBJECTIVE (show working where necessary)

1. If distance travelled is 7km and time is 2mins, then speed will be _________

2. If K = Fr²/q1q2 then the SI unit of K = ____________

3. One method of charging an object that I know is ___________

4. One general properties of matter that I know is ___________

5. ____________ & 6. _____________ is found inside the Nucleus of an Atom

7. Unlike charges attract while like charges _____________

8. Other units of pressure asides from Pascal and bar is ___________

9. The heat transfer that does not require a medium is known as _____________

10. Mathematical expression of stress is ___________.

Theory (show all working) Answer any 4

1. State the formula for solving conductive heat transfer rate, name/identify all the symbols in the formula and derive it's S.I. units (5mks)

2. Given that a load of 15kg extend an elastic material of length 12m by 10cm. If the cross sectional of the material is 0.45m², Find : (a)Force Constant, (b)stress, (c)strain, (d) Young's Modulus (5mks)

3a. State the Coulomb's law. (2mks). (b)Find the force of attraction between two charges q1 and Q2, separated by a distance 4r. (3mks)

4a. Give three example each for the following: (i)Scalar quantities, (ii) Vector quantities. (b)A car travels from city A to City B at an average speed of 60km/h, The distance between the two cities is 240km. Calculate the time taken for the trip.

5a. Define solar energy. (1mk). (b) Mention at least 2 types Solar collectors. (2mks). (c) Give two advantages of solar energy. (2mks).