MAENEO MUHIMU YA KUKAZIA KUSOMA KABLA YA MITIHANI
MWONGOZO WA MARUDIO YA NECTA CSEE OKTOBA 2026
Hongera kwa kuendelea na maandalizi. Kwa mtihani wa Ijumaa, tarehe 06/11/2026, asubuhi, una masomo mawili ya vitendo:
031/2C – Physics 2C (Practical)
034/2 – Agriculture 2 (Practical)
Nitakuelekeza kwenye maeneo ya msingi, mada ndogo, vifaa, kanuni, maswali ya mfano na majibu yake.
Kumbuka: Haya ni maeneo ya kujiandaa na maswali ya mazoezi, si maswali halisi yaliyovuja au utabiri wa uhakika wa mtihani.
SEHEMU A: 031/2C – PHYSICS PRACTICAL
1. Areas of Concentration – mada za kukazia
Kwa muundo wa Chemistry na Physics wa CSEE, Physics Practical inahusisha maswali ya majaribio yanayopima uwezo wa kufanya vipimo, kurekodi matokeo, kuchora grafu na kufanya hesabu.
Kulingana na muundo wa NECTA wa Physics, practical halisi ina maswali mawili: moja kutoka Mechanics na jingine kutoka Heat, Light, Waves au Electricity.
Kipaumbele | Mada kuu | Mada ndogo |
|---|---|---|
1 | Mechanics | Moments, density, force, equilibrium |
2 | Measurements | Vernier calipers, micrometer screw gauge |
3 | Heat | Specific heat capacity, temperature |
4 | Light | Reflection, refraction, glass block |
5 | Electricity | Ohm's law, resistance, circuits |
6 | Waves | Frequency, wavelength, oscillations |
2. Mada muhimu na kanuni za kukariri
A. Mechanics
Kazia:
Principle of moments.
Centre of gravity.
Equilibrium of forces.
Simple machines.
Density of regular and irregular objects.
Hooke's law.
Kanuni muhimu:
Ambapo:
\(F\) = Force.
\(k\) = Spring constant.
\(e\) = Extension.
B. Measurements
Jifunze:
Reading a metre rule.
Reading Vernier calipers.
Reading micrometer screw gauge.
Measuring diameter, length and thickness.
Significant figures.
Units and errors.
C. Heat
Kazia:
Specific heat capacity.
Temperature changes.
Heat transfer.
Boiling and melting points.
Expansion of solids and liquids.
Kanuni:
D. Light
Kazia:
Reflection.
Refraction.
Refractive index.
Angle of incidence.
Angle of refraction.
Ray diagrams.
Kanuni:
E. Electricity
Kazia:
Ohm's law.
Resistance.
Current and voltage.
Series and parallel circuits.
Ammeter and voltmeter connections.
Graph of voltage against current.
Kanuni:
F. Waves
Kumbuka:
Ambapo:
\(v\) = Wave velocity.
\(f\) = Frequency.
\(\lambda\) = Wavelength.
\(T\) = Period.
3. Possible Physics Practical Questions and Answers
QUESTION 1: Principle of Moments
A metre rule is balanced on a pivot. A force of 2 N acts at a perpendicular distance of 20 cm from the pivot.
(a) Define moment of a force.
Answer: The turning effect of a force about a pivot or point.
(b) Calculate the moment.
(c) State the principle of moments.
Answer: For a body in equilibrium, the sum of clockwise moments about a point is equal to the sum of anticlockwise moments about the same point.
(d) Mention three applications of moments.
Answer:
Seesaw.
Spanner.
Beam balance.
QUESTION 2: Hooke's Law
(a) State Hooke's law.
Answer: Within the elastic limit, the extension of an elastic material is directly proportional to the applied force.
(b) Write its mathematical expression.
(c) What is meant by elastic limit?
Answer: It is the maximum point beyond which a material cannot return to its original shape after removing the applied force.
QUESTION 3: Electricity
A resistor has a potential difference of 12 V and current of 2 A.
(a) State Ohm's law.
Answer: At constant temperature, the current through a conductor is directly proportional to the potential difference across it.
(b) Calculate resistance.
(c) Which instrument measures current?
Answer: Ammeter.
(d) How is an ammeter connected?
Answer: In series.
(e) How is a voltmeter connected?
Answer: In parallel.
QUESTION 4: Refraction of Light
(a) Define refraction.
Answer: Refraction is the change in direction of light when it passes from one transparent medium to another due to a change in speed.
(b) State Snell's law.
Answer:
(c) Mention three apparatus used in a refraction experiment.
Answer:
Glass block.
Optical pins.
Protractor.
QUESTION 5: Density
A metal object has a mass of 200 g and volume of 50 cm³. Calculate its density.
Answer:
QUESTION 6: Graph Drawing
A student investigates the relationship between force and extension of a spring.
(a) Which variable is independent?
Answer: Applied force.
(b) Which variable is dependent?
Answer: Extension.
(c) What graph is expected within the elastic limit?
Answer: A straight line passing through the origin, provided the measurements are ideal.
(d) State two precautions.
Answer:
Avoid parallax errors when reading the scale.
Do not exceed the elastic limit of the spring.
4. Practical skills za kukumbuka Physics
Record readings in a well-organised table.
Use correct units, for example cm, m, g, kg, V and A.
Label graph axes correctly.
Use a suitable scale.
Plot points accurately.
Draw a best-fit line.
Show all calculation steps.
State experimental precautions and possible sources of error.
SEHEMU B: 034/2 – AGRICULTURE 2 (PRACTICAL)
1. Areas of Concentration – Mada za kukazia
Hapa kuna jambo muhimu sana: Kwa muundo rasmi wa NECTA, Agriculture 2 ina maswali mawili ya vitendo, kila moja alama 25, na unatakiwa kujibu yote mawili. Muda ni saa 2½.
Muundo huo unaweka makundi mawili makubwa ya maeneo ya vitendo:
Kipaumbele | Mada kuu | Mada ndogo |
|---|---|---|
1 | Soil science | Soil types, texture, structure |
2 | Soil productivity | Soil fertility, erosion, conservation |
3 | Mechanisation | Farm tools, machinery, maintenance |
4 | Farm structures | Poultry houses, cattle sheds, stores |
5 | Crop production | Planting, spacing, seed selection |
6 | Crop husbandry | Weeding, pruning, harvesting |
7 | Livestock production | Animal identification, breeds |
8 | Animal husbandry | Feeding, housing, diseases |
9 | Agro-forestry | Trees and crops integration |
NECTA inaweka uzito wa makundi haya mawili ya vitendo katika mgawanyo wa 50% na 50%.
2. Mada ndogo muhimu za Agriculture
A. Soil Science (Sayansi ya udongo)
Jifunze kutambua aina tatu za udongo:
Aina ya udongo | Sifa zake |
|---|---|
Sandy soil | Chembechembe kubwa, hupitisha maji haraka |
Clay soil | Chembechembe ndogo, hushikilia maji |
Loam soil | Mchanganyiko wa sand, silt na clay |
Maswali ya kukazia:
Soil texture.
Soil structure.
Soil profile.
Soil pH.
Soil fertility.
Soil drainage.
Soil erosion.
B. Soil productivity
Kazia:
Soil fertility improvement.
Application of organic manure.
Application of inorganic fertilizers.
Crop rotation.
Mulching.
Terracing.
Contour ploughing.
Cover cropping.
C. Farm tools and mechanisation
Jifunze kutambua vifaa na matumizi yake:
Kifaa | Matumizi |
|---|---|
Hoe | Digging and weeding |
Spade | Digging and lifting soil |
Rake | Levelling soil and collecting debris |
Panga | Cutting vegetation |
Watering can | Watering crops |
Wheelbarrow | Transporting farm materials |
Secateurs | Pruning branches |
Sprayer | Applying agrochemicals |
D. Crop production and crop husbandry
Kazia:
Seed selection.
Seed germination.
Seedbed preparation.
Planting methods.
Spacing.
Thinning.
Gap filling.
Weeding.
Fertilizer application.
Pest and disease control.
Harvesting and storage.
E. Livestock production and animal husbandry
Kazia:
Identification of farm animals.
Animal breeds.
Animal feeds.
Animal housing.
Livestock diseases.
Parasites.
Vaccination.
Animal hygiene.
Animal products.
Reproduction.
F. Agro-forestry and farm structures
Kazia:
Meaning of agro-forestry.
Advantages of agro-forestry.
Disadvantages of agro-forestry.
Types of farm structures.
Uses of poultry houses.
Uses of cattle sheds.
Grain storage structures.
Fencing.
3. Possible Agriculture Practical Questions and Answers
QUESTION 1: Soil Identification
A student is given three soil samples labelled A, B and C.
(a) Name the three common types of soil.
Answer:
Sandy soil.
Clay soil.
Loamy soil.
(b) Which soil is best suited for most crop production?
Answer: Loamy soil.
(c) Give four characteristics of loamy soil.
Answer:
Contains sand, silt and clay.
Has good water-holding capacity.
Has good drainage.
Supports good plant growth.
(d) How can soil texture be identified?
Answer:
By feeling the soil between fingers.
By carrying out a sedimentation test using water.
By examining soil particles.
QUESTION 2: Soil Conservation
(a) Define soil erosion.
Answer: Soil erosion is the removal of the top fertile layer of soil by agents such as water and wind.
(b) Mention five methods of controlling soil erosion.
Answer:
Terracing.
Contour farming.
Mulching.
Planting cover crops.
Afforestation.
(c) State four effects of soil erosion.
Answer:
Loss of soil fertility.
Reduced crop yields.
Formation of gullies.
Sedimentation of rivers and dams.
QUESTION 3: Farm Tools
A student is provided with a hoe, rake, spade and watering can.
(a) Identify the four tools.
Answer: Hoe, rake, spade and watering can.
(b) State one use of each tool.
Answer:
Tool | Use |
|---|---|
Hoe | Weeding and cultivation |
Rake | Levelling soil |
Spade | Digging and lifting soil |
Watering can | Watering crops |
(c) Mention four ways of maintaining farm tools.
Answer:
Clean after use.
Dry before storage.
Sharpen cutting edges.
Apply oil to metallic parts to prevent rusting.
QUESTION 4: Crop Production
(a) Define seed germination.
Answer: Seed germination is the process by which a viable seed develops into a seedling under favourable conditions.
(b) State four conditions necessary for germination.
Answer:
Water.
Oxygen.
Suitable temperature.
Viable seed.
(c) Mention four methods of planting crops.
Answer:
Broadcasting.
Drilling.
Dibbling.
Transplanting.
(d) Define thinning.
Answer: Thinning is the removal of excess seedlings to maintain the recommended plant population and spacing.
QUESTION 5: Livestock Production
(a) Mention five common farm animals.
Answer:
Cattle.
Goats.
Sheep.
Pigs.
Poultry.
(b) Mention four classes of livestock feeds.
Answer:
Energy feeds.
Protein feeds.
Mineral supplements.
Vitamin supplements.
(c) State five factors to consider when constructing animal houses.
Answer:
Proper ventilation.
Adequate space.
Good drainage.
Protection from predators.
Easy cleaning and disinfection.
QUESTION 6: Animal Diseases
(a) Define livestock disease.
Answer: A disease is a condition that interferes with the normal functioning of an animal's body.
(b) Mention four methods of controlling livestock diseases.
Answer:
Vaccination.
Proper sanitation.
Quarantine of sick animals.
Proper feeding and management.
(c) Differentiate between internal and external parasites.
Answer:
Internal parasites live inside the animal's body, for example roundworms.
External parasites live on the body surface, for example ticks and lice.
QUESTION 7: Agro-forestry
(a) Define agro-forestry.
Answer: Agro-forestry is a farming system that combines trees with crops and/or livestock on the same piece of land.
(b) State five advantages of agro-forestry.
Answer:
Controls soil erosion.
Improves soil fertility.
Provides firewood.
Provides timber.
Provides shade and shelter.
QUESTION 8: Soil Fertility
(a) What is soil fertility?
Answer: It is the ability of soil to supply essential nutrients to plants in adequate amounts and suitable proportions.
(b) Mention four ways of improving soil fertility.
Answer:
Applying farmyard manure.
Applying compost manure.
Applying appropriate inorganic fertilizers.
Practising crop rotation with legumes.
SEHEMU C: FORMULAE NA NUKUU ZA KUKARIRI
Physics
Formula | Matumizi |
|---|---|
\(F=ma\) | Force |
\(W=mg\) | Weight |
\(M=Fd\) | Moment |
\(\rho=m/V\) | Density |
\(V=IR\) | Ohm's law |
\(P=VI\) | Electrical power |
\(Q=mc\Delta T\) | Heat energy |
\(v=f\lambda\) | Wave velocity |
\(n=\sin i/\sin r\) | Refractive index |
\(F=ke\) | Hooke's law |
Agriculture
Kumbuka haya maneno muhimu:
Soil texture – ukubwa na uwiano wa chembechembe za udongo.
Soil structure – mpangilio wa chembechembe za udongo.
Soil fertility – uwezo wa udongo kutoa virutubisho.
Germination – uotaji wa mbegu.
Transplanting – kuhamisha miche kutoka kitaluni kwenda shambani.
Mulching – kufunika uso wa udongo.
Pruning – kukata matawi yasiyohitajika.
Weeding – kuondoa magugu.
Irrigation – umwagiliaji.
Mechanisation – matumizi ya mashine katika kilimo.
SEHEMU D: MPANGO WA MARUDIO KUELEKEA 06/11/2026
Ningependekeza utumie mpango huu wa marudio:
Kipindi | Somo | Kazi |
|---|---|---|
1 | Physics | Mechanics na moments |
2 | Physics | Measurements na graphs |
3 | Physics | Electricity na light |
4 | Agriculture | Soil identification |
5 | Agriculture | Farm tools na matumizi |
6 | Agriculture | Crop production |
7 | Agriculture | Livestock na agro-forestry |
8 | Masomo yote | Mock practical examination |
Mbinu za kupata alama nyingi kwenye mtihani
PHYSICS
AGRICULTURE
SEHEMU E: MOCK EXAMINATION – JIPIME
Jaribu maswali haya kabla ya kuangalia majibu.
Jaribio la maswali 8
1. PHYSICS: What is the SI unit of moment of force?
2. PHYSICS: Which instrument measures electric current?
3. PHYSICS: What is the formula for density?
4. PHYSICS: Which law relates force and extension of a spring?
5. AGRICULTURE: Which soil is generally most suitable for crop production?
6. AGRICULTURE: Which tool is mainly used for pruning?
7. AGRICULTURE: Which gas is essential for seed germination?
8. AGRICULTURE: Which practice reduces soil erosion on slopes?
SEHEMU F: USHAURI WANGU WA MWISHO
Ili kuongeza nafasi ya kupata A:
Usikariri tu; fanya majaribio kwa vitendo.
Jifunze kutambua vifaa bila kusaidiwa.
Jifunze kuchora na kutafsiri grafu.
Hakikisha unajua tofauti za specimens.
Soma maswali kwa makini kabla ya kujibu.
Usikimbilie kuandika bila kuchunguza matokeo.
Pata usingizi wa kutosha kabla ya mtihani.
Marejeo rasmi:
NECTA CSEE OKTOBA 2026 – MOCK EXAMINATIONS
Nimekuandalia mitihani miwili ya majaribio kwa kiwango cha Kidato cha Nne, inayolenga mtihani wako wa Ijumaa, tarehe 06/11/2026.
Maelekezo: Fanya mtihani kwanza bila kuangalia marking scheme. Baada ya kumaliza, jipime kwa kutumia majibu na mgawanyo wa alama.
MOCK EXAMINATION 1: PHYSICS 2C (PRACTICAL)
Code: 031/2C | Jumla: Alama 50 | Maswali: 2
QUESTION ONE: MECHANICS (25 MARKS)
A student was provided with a metre rule, a pivot, a 100 g mass and other necessary apparatus to investigate the principle of moments.
The student obtained the following results:
Distance of load (cm) | Distance of effort (cm) |
|---|---|
10 | 40 |
15 | 30 |
20 | 20 |
25 | 16 |
30 | 13.3 |
Answer the following questions:
(a) Define the principle of moments. (3 marks)
(b) Name four apparatus used in this experiment. (4 marks)
(c) Plot a graph of distance of load against distance of effort. (5 marks)
(d) State the relationship between the two distances. (3 marks)
(e) Explain why the metre rule must be balanced horizontally before taking readings. (3 marks)
(f) Mention three sources of experimental errors. (3 marks)
(g) State four precautions taken during this experiment. (4 marks)
QUESTION TWO: ELECTRICITY (25 MARKS)
A student performed an experiment to investigate the relationship between voltage and current through a resistor.
The following results were obtained:
Current (A) | Voltage (V) |
|---|---|
0.1 | 1 |
0.2 | 2 |
0.3 | 3 |
0.4 | 4 |
0.5 | 5 |
Answer the following questions:
(a) State Ohm's law. (3 marks)
(b) Name four apparatus used in this experiment. (4 marks)
(c) Draw a labelled circuit diagram for investigating Ohm's law. (5 marks)
(d) Plot a graph of voltage against current. (5 marks)
(e) Calculate the resistance of the resistor using the graph. (3 marks)
(f) State three precautions taken during the experiment. (3 marks)
(g) Mention two factors that may affect resistance. (2 marks)
PHYSICS MOCK – MARKING SCHEME
QUESTION ONE
(a) Principle of moments:
The sum of clockwise moments is equal to the sum of anticlockwise moments about the same pivot when a body is in equilibrium. (3)
(b) Apparatus:
Metre rule.
Pivot.
Masses.
Thread or mass hanger. (4)
(c) Graph:
Correct axes and labels. (2)
Suitable scale. (1)
Accurate plotting. (1)
Best-fit line or curve. (1)
(d) The distances are inversely proportional approximately, with their product nearly constant. (3)
(e) To ensure the rule is in equilibrium and to avoid errors in measuring perpendicular distances. (3)
(f) Sources of error:
Parallax error.
Friction at the pivot.
Inaccurate measurement.
(Any three) (3)
(g) Precautions:
Read scales at eye level.
Ensure the rule is horizontal.
Avoid disturbing the apparatus.
Take repeated readings.
(4)
QUESTION TWO
(a) Ohm's law:
At constant temperature, current is directly proportional to potential difference across a conductor. (3)
(b) Apparatus:
Ammeter.
Voltmeter.
Resistor.
Battery or power supply.
(4)
(c) Circuit diagram:
Ammeter in series. (2)
Voltmeter in parallel. (2)
Correct circuit arrangement. (1)
(d) Graph:
Correct axes. (2)
Suitable scale. (1)
Correct plotting. (1)
Best-fit straight line. (1)
(e) Resistance:
Using the reading \(V=5V\), \(I=0.5A\):
(3)
(f) Precautions:
Switch off between readings.
Ensure tight connections.
Avoid parallax errors. (3)
(g) Factors affecting resistance:
Length of conductor.
Cross-sectional area.
Temperature.
Nature of material.
(Any two) (2)
MOCK EXAMINATION 2: AGRICULTURE 2 (PRACTICAL)
Code: 034/2 | Jumla: Alama 50 | Maswali: 2
QUESTION ONE: SOIL SCIENCE AND FARM TOOLS (25 MARKS)
A student was provided with three soil samples labelled A, B and C.
The student observed the following characteristics:
Sample | Characteristics |
|---|---|
A | Large particles, rough texture and drains water quickly |
B | Very fine particles and retains much water |
C | Mixture of different particle sizes and has good drainage |
Answer the following questions:
(a) Identify samples A, B and C. (3 marks)
(b) State three physical properties of soil. (3 marks)
(c) Which soil sample is most suitable for crop production? Give three reasons. (4 marks)
(d) Describe a simple experiment used to determine soil texture. (5 marks)
(e) Mention five methods of improving soil fertility. (5 marks)
(f) State five methods of controlling soil erosion. (5 marks)
QUESTION TWO: FARM TOOLS, CROP AND LIVESTOCK PRODUCTION (25 MARKS)
A student was provided with the following farm tools and specimens:
Specimen A: Hoe.
Specimen B: Rake.
Specimen C: Secateurs.
Specimen D: Watering can.
Specimen E: Maize seeds.
Specimen F: Bean seeds.
Answer the following questions:
(a) Identify specimens A, B, C and D. (4 marks)
(b) State one use of each of the four tools. (4 marks)
(c) Mention four conditions necessary for seed germination. (4 marks)
(d) Differentiate between monocotyledonous and dicotyledonous seeds. (4 marks)
(e) State four ways of maintaining farm tools. (4 marks)
(f) Mention five advantages of crop rotation. (5 marks)
AGRICULTURE MOCK – MARKING SCHEME
QUESTION ONE
(a) Identification:
A – Sandy soil. (1)
B – Clay soil. (1)
C – Loamy soil. (1)
(b) Physical properties of soil:
Texture.
Structure.
Colour.
Porosity.
Water-holding capacity.
(Any three) (3)
(c) Most suitable: Sample C – Loamy soil. (1)
Reasons:
Good drainage. (1)
Good water-holding capacity. (1)
Contains a mixture of soil particles suitable for crop growth. (1)
(d) Experiment to determine soil texture:
Collect a soil sample. (1)
Remove stones and organic debris. (1)
Put soil into a transparent jar. (1)
Add water and shake thoroughly. (1)
Allow it to settle and observe the layers of sand, silt and clay. (1)
(e) Ways of improving soil fertility:
Applying farmyard manure.
Applying compost.
Applying appropriate inorganic fertilizers.
Practising crop rotation with legumes.
Planting cover crops. (5)
(f) Methods of controlling soil erosion:
Terracing.
Contour farming.
Mulching.
Afforestation.
Planting cover crops. (5)
QUESTION TWO
(a) Identification:
A – Hoe.
B – Rake.
C – Secateurs.
D – Watering can. (4)
(b) Uses:
Hoe – Digging and weeding.
Rake – Levelling soil.
Secateurs – Pruning.
Watering can – Watering crops. (4)
(c) Conditions necessary for germination:
Water.
Oxygen.
Suitable temperature.
Viable seed. (4)
(d) Differences:
Monocotyledonous | Dicotyledonous |
|---|---|
One cotyledon | Two cotyledons |
Example: maize | Example: beans |
(4 marks)
(e) Maintenance of farm tools:
Clean after use.
Dry before storage.
Sharpen cutting edges.
Store in a dry place. (4)
(f) Advantages of crop rotation:
Maintains soil fertility.
Helps control pests.
Helps control crop diseases.
Reduces weed problems.
Improves crop yields. (5)
SEHEMU F: JINSI YA KUJIPIMA KWA ALAMA
Tumia jedwali hili baada ya kufanya mitihani yote miwili.
Alama | Kiwango chako |
|---|---|
45–50 | Umefanya vizuri sana |
40–44 | Vizuri sana |
35–39 | Vizuri |
30–34 | Unahitaji marudio zaidi |
Chini ya 30 | Rudia mada na mazoezi |
Huu ni mfumo wa kujipima tu, siyo madaraja rasmi ya NECTA.
Ushauri wa mwisho kabla ya tarehe 06/11/2026
Ningependa uzingatie mambo matatu:
Physics: Fanya mazoezi ya kupima, kurekodi matokeo, kuchora grafu na kukokotoa majibu.
Agriculture: Jifunze kutambua soil samples, farm tools, seeds na specimens pamoja na matumizi yake.
Mitihani: Jibu kwa Kiingereza fasaha, tumia istilahi za kisayansi na usisahau units.
Lengo lako si kusoma kwa wingi pekee, bali kuelewa, kufanya vitendo na kujibu kwa usahihi.
Nakutakia kila la heri katika mtihani wako wa NECTA CSEE 2026. Mungu akujalie mafanikio na kupata alama za A!
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