PRESIDENT OFFICE REGIONAL ADMNISTRATION
AND LOCAL GOVERNMENT
SECONDARY EXAMINATION SERIES
COMPETENCE BASED ASSEMENT
PHYSICS FORM TWO
TERMINAL EXAMS-MAY – 2023
031
Time: 2:30Hours
Instructions
SECTION A. 15 MARKS
2. Match the description of electric terms in list A with the correct electric terms in list B by writing a letter of the correct response below the corresponding item number in the table provided
| List B |
(i) The flowing of charge per unit time (ii) The instrument which used to measure current in wire (iii) A potential difference across the cell terminal as when no power delivered (iv) Is the instrument which used supply electric energy (v) Is a continuous path through which electric charge flows |
|
SECTION B. 70 MARKS
ANSWER ALL QUESTIONS FROM THIS SECTION
3
a) state laws of reflection
b) Explain the behavior of light when it encounters translucent, transparent and opaque materials
c) Calculate number of images when the angle between two plane mirrors is: i. 600 ii. 00
d) How the number of images formed by plane mirrors related to the angle between two plane mirrors?
4. a) State conditions for a body to be in equilibrium.
(b)By using the principle of Moment determine unknown Weight (W) on the fig below.
(c)A machine having velocity ratio (V.R) of 5 need an effort of 240N to raise a load of 720N. How much
i. mechanical advantage
ii. Efficiency (e)
5.a) Explain why efficiency of machines is always less than 100%?
b) An object weight in air is 6.0N and 4.0N when immersed in water. What will be its:
i. Up thrust in water
ii. Relative density
iii. Density
c) Give reason why a ship can move on surface of water without sinking?
6. a) Kinetic energy potential energy are forms of mechanical energy. Give comparison and differences between them
b) A car of mass 4tones travels at velocity of 4m/s .How much kinetic energy developed?
c) How much power developed when a crane lifts a container of mass 500kg through a height of 5m in 10sec ?
7. (a) When the metal can that containing hot water is closed, and the cold water is poured on it, the can collapses. Why?
(b) In an experiment using Hare’s apparatus, the lengths of methanol and water columns were found to be 16 cm and 12.8 cm respectively
(i) What is the relative density of methanol?
(ii) If the length of methanol column was altered to 21.5 cm what would be the new height of the water column?
8. (a) When water and mercury were in two separate measuring cylinders, the teacher asked student to observe the reading in both cylinders. Why does mercury form downward meniscus while that of water forms upward meniscus?
(b) A force of 4 N causes a certain copper wire to extend to 1.0 mm. Find the load that will cause a 3.2 mm extension on the same wire.
9. (a) Write down three equations of uniform acceleration of motion and explain the meaning of each symbol used in the equation.
(b)The football P of mass 0.5 kg was kicked by a goalkeeper at 12 m/s and collides with another football Q of mass 0.45 kg which was at rest. After the collision both balls move off together at 10 m/s. Calculate:
(i) The momentum of ball P before collision
(ii) The momentum of ball P after collision
SECTION C. 15 MARKS
ANSWER QUESTION 10
10. Three resistors of 2 Ω, 4 Ω and 6 Ω are connected in series to a battery of e.m.f 24 V and have negligible internal resistance.
(a) Draw the circuit diagram including the battery, ammeter, switch and the three resistors.
(b) Find the current flowing in the circuit drawn in 10 (a) above.
(c) Find the potential difference at the ends of each resistor in 10 (a).
FORM TWO PHYSICS EXAM SERIES 149
FORM TWO PHYSICS EXAM SERIES 149
THE PRESIDENT’S OFFICE
MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT
SECONDARY EXAMINATION SERIES
PHYSICS TERMINAL EXAMINATIONS MAY
FORM TWO-2022
Time: 2:30Hours
INSTRUCTIONS.
SECTION A (30 Marks)
Answer All questions in this section.
1. For each of items (i-xx) choose the correct its letter in the box provided
(i)The formed by a plane mirror is always
(ii)A body which gains excess electrons becomes
(iii)Which of the following is not a form of energy?
(iv)A person in a bus which starts to move forward tends to fall backwards. This is because he/she is obeying:
(v)When a body floats in water
(vi)The velocity-time graph has a slope which represents
(vii)Work and energy have the same SI unit of
(viii)Heat energy is transferred from the sun to the earth by the process of
(ix)A wheelbarrow is an example of
(x)When charging a body by rubbing with either fur or skill the particles which are transferred are
(xi)current electricity can be measured in
(xii)A piece of metal of volume 10cm3 has a mass of 65.5kg. The density of metal is
(xiii)Umbra refers to
(xiv)When a narrow glass tube is dipped into mercury
(xv)A piece of metal of volume 0.24cm3 and mass 0.72 has a relative density (R.D) of
(xvi)A body which sinks in water has its density
(xvii)The mechanical advantage of a machine is 4. Find the effort needed to operate a machine of the load 1000N.
(xviii)A force exerted by a pressure of 20N/m2 acting over an area of 2m2 is
(xix)What is the acceleration of a body of mass 30kg when constant force of 150N is applied on it?
(xx)As the balloon goes up, the weight of air displaced becomes less and less. This means that the upthrust
2.Match the items in List A with a correct response in List B by writing a letter of the correct response below the number of the corresponding item in List A in the table provided.
LIST A | LIST B | |
|
| |
3.
4.(a)Differentiate between real weight and apparent weight of an object as applied in physics
(b)A solid weighs 64N in air and 48N when totally immersed in a liquid of density 0.8g/cm3 calculate
5(a)The two uses of a gold leaf electroscope are …………….
(b)In verification of Ohm’s law the following circuit was used during the experiment
6(a) mention two examples of magnetic materials
(b)Name the materials which when rubbed with a dry cloth become
(c)State two conditions for a body to be in equilibrium:
7(a)Distinguish between upthrust and apparent weight.
(b)The apparent weight of a body is 6.4N. If the weight of liquid displaced is 4.7N, what is the weight of the body in air?
8(a)A car with a velocity of 90m/s is uniformly retarded and brought to rest after 10seconds. Calculate its deceleration
(b)State the fundamental law of static electricity
(c)Explain what is wrong in the circuit diagram shown below.
9(a)Mention the type of mechanical energy
(b)A body of mass 10kg is raised to a height of 4 metres above the ground in 2 seconds
10.The mass of an empty density bottle was 50g. When filled with a certain liquid of volume 20cm3 its mass became 75g. Find the
FORM TWO PHYSICS EXAM SERIES 100
FORM TWO PHYSICS EXAM SERIES 100