SEE PRACTICE SET-5 (SCIENCE)

 

SEE Model Question Paper 

Class: 10
Full Marks: 75
Time: 2 Hours

Instructions:

• Use the value of g = 10 m/s² unless stated otherwise.

• Show working steps in numerical questions.

• Draw neat and labeled diagrams wherever required.

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Section A: Multiple Choice Questions (15 × 1 = 15 marks)

1. The rate of doing work is called:
   a) Energy
   b) Force
   c) Power
   d) Momentum

2. The slope of a velocity–time graph gives:
   a) Speed
   b) Distance
   c) Acceleration
   d) Momentum

3. The unit of electric current is:
   a) Coulomb
   b) Volt
   c) Ampere
   d) Ohm

4. The pressure at the bottom of a liquid column depends on:
   a) Mass of liquid only
   b) Height and density of liquid
   c) Surface area of liquid
   d) Shape of vessel

5. Which element does not corrode easily due to formation of a protective oxide layer?
   a) Sodium
   b) Iron
   c) Aluminum
   d) Zinc

6. Which of the following is an alkali?
   a) NaCl
   b) H₂SO₄
   c) NaOH
   d) CO₂

7. Which gas is liberated when marble chips react with dilute HCl?
   a) CO₂
   b) O₂
   c) H₂
   d) Cl₂

8. The pH of lemon juice is around:
   a) 2
   b) 7
   c) 9
   d) 14

9. Which organelle is called the powerhouse of the cell?
   a) Ribosome
   b) Mitochondria
   c) Chloroplast
   d) Nucleus

10. The smallest blood vessels in the human body are:
    a) Arteries
    b) Veins
    c) Capillaries
    d) Venules

11. The process of fusion of male and female gametes is called:
    a) Fertilization
    b) Pollination
    c) Germination
    d) Ovulation

12. Which vitamin deficiency causes night blindness?
    a) Vitamin A
    b) Vitamin C
    c) Vitamin D
    d) Vitamin K

13. The part of the brain that controls involuntary activities like heartbeat and breathing is:
    a) Cerebrum
    b) Cerebellum
    c) Medulla
    d) Hypothalamus

14. Which disease is caused by Plasmodium parasite?
    a) Tuberculosis
    b) Typhoid
    c) Malaria
    d) Cholera

15. The excretory product of plants in gaseous form is:
    a) Glucose
    b) Oxygen
    c) Carbon dioxide
    d) Water vapor

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Section B: Short Answer Questions (6 × 5 = 30 marks)

16. Define momentum. A boy of mass 40 kg runs with a velocity of 5 m/s. Calculate his momentum. (2+3)

17. What is Archimedes’ principle? Write two applications of it.

18. Define valency. Write the valency of chlorine and magnesium with reasons.

19. What is neutralization reaction? Write any two examples from daily life where neutralization is applied.

20. Write two differences between arteries and veins. Why are arteries thicker than veins?

21. Name two communicable and two non-communicable diseases. Write one preventive measure for any communicable disease.

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Section C: Long Answer / Structured Questions (3 × 10 = 30 marks)

22. A pump lifts 200 liters of water to a tank at a height of 15 m in 30 seconds. (Density of water = 1000 kg/m³, g = 10 m/s²)
    a) Calculate the work done.
    b) Calculate the power of the pump.
    c) Define efficiency of a machine. (3+4+3)

23. Draw a neat and labeled diagram of the structure of an atom according to Bohr’s model. Explain the main postulates of Bohr’s atomic model.

24. Explain the process of respiration in humans. Write the difference between external respiration and cellular respiration. Draw a labeled diagram of the human respiratory system.