KSEAB SSLC Science Model Question Paper 2024-25 Karnataka
Organisation : Karnataka School Examination & Assessment Board (KSEAB)
Class Name : SSLC (Class X)
Subject : Science
Download : Model Question Paper 2024-25
Website : https://kseeb.karnataka.gov.in/sslc2025modelqp/
KSEAB SSLC Science Model Question Paper
I. Four alternatives are given for each of the following questions / incomplete statements. Choose the correct alternative and write the complete answer along with its letter of alphabet. 2 × 1 = 2.
Related / Similar Question Paper : KSEAB SSLC Social Science Model Question Paper 2024-25
1. The S.I. unit of electric current is
(A) coulomb
(B) volt
(C) ampere
(D) watt
2. The change in focal length of an eye lens is controlled by
(A) Ciliary muscles
(B) Pupil
(C) Retina
(D) Iris
II. Answer the following questions : 2 × 1 = 2
3. Write the symbols of the following components used in an electric circuit.
i) Electric cell
ii) Rheostat
4. What problems will occur when live and neutral wires are connected directly to the household electrical appliances from the electric poles ?
III. Answer the following questions : 3 × 2 = 6
5. Connecting resistors in parallel in domestic circuits is better than connecting them in series. How ? Explain.
6. How do magnetic field lines appear when electric current passes through a circular loop of conducting wires ?
OR
Explain the function of earth wire in domestic circuits.
7. Observe the following figure. Answer the question given below : Whether this phenomenon can be observed on the moon surface ? Justify the answer.
IV. Answer the following questions : 3 × 3 = 9
8. Explain an activity to verify Fleming’s left hand rule.
9. Draw the ray diagram for the image formation in a convex lens when the object is placed between optical centre ( O ) and principal focus ( 1F ). Mention the position and the nature of the image formed.
10. Observe the figure given below. Name the defect of the eye depicted in the figure. What causes this defect ? How can this defect be corrected ?
OR
Stars twinkle but planets do not twinkle. Why ? Explain.
V. Answer the following questions : 2 × 4 = 8
11. A convex mirror that has a radius of curvature 4 m is used in a bus. If a car is located at the distance of 10 m from the mirror, then find the image distance. Mention the nature and the size of the image formed.
12. a) State Ohm’s law.
b) Mention the factors on which the resistance of a conductor depend.
c) Resistivity of a material A is 1210 Ω m and the resistivity of a material B is 2·63 × 810− Ω m. Which of these two materials can be used as an insulator ?
VI. Four alternatives are given for each of the following questions / incomplete statements. Choose the correct alternative and write the complete answer along with its letter of alphabet. 3 × 1 = 3
13. A salt used to remove the permanent hardness of water is
(A) calcium sulphate hemihydrate
(B) calcium oxychloride
(C) sodium carbonate
(D) sodium hydrogen carbonate
14. As the pH value of a neutral solution decreases, then
(A) concentration of H + ions decreases
(B) concentration of H + ions increases
(C) solution becomes basic
(D) concentration of H + and OH − ions equalises
15. Electronic configurations of the elements A, B and C respectively are 2, 8, 2 ; 2, 8 and 2, 8, 7. Among these the elements that can react each other to form an ionic compound are
(A) Elements A and B
(B) Elements B and C
(C) Elements A and C
(D) Elements A, B and C
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