Mock Test – SEBA Class 12 Science (Physics, Chemistry and Biology) - CollegeXpad Navigating your Educational Journey

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Mock Test For SEBA Class 12 Students (Science)

Here's a Mock Test for Class12 Students.

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1 / 30

1. Which of the following is NOT a type of blood vessel?

A. Nephron

B. Vein

C. Artery

D. Capillary

2 / 30

2. Which of the following best describes the law of conservation of energy?

A. Energy cannot be created nor destroyed, only transferred or transformed from one form to another.

B. The total energy of a closed system remains constant over time.

C. Energy is directly proportional to mass and velocity.

D. Energy always flows from a region of higher concentration to a region of lower concentration.

3 / 30

3. What is the phenomenon where a wave changes direction upon entering a different medium?

A. Reflection

B. Refraction

C. Diffraction

D. Interference

4 / 30

4. The process by which plants make their food using sunlight is called:

A. Photosynthesis

B. Fermentation

C. Respiration

D. Digestion

5 / 30

5. What is the largest organ in the human body?

A. Skin

B. Heart

C. Liver

D. Brain

6 / 30

6. Which of the following statements about Newton's First Law of Motion is correct?

A. For every action, there is an equal and opposite reaction.

B. The acceleration of an object is directly proportional to the net external force acting on it.

C. An object at rest tends to remain at rest unless acted upon by a net external force.

D. The velocity of an object remains constant unless acted upon by a net external force.

7 / 30

7. Which part of the human brain is responsible for regulating balance and coordination?

A. Medulla oblongata

B. Hypothalamus

C. Cerebrum

D. Cerebellum

8 / 30

8. The chemical symbol for silver is:

A. Si

B. Au

C. Ag

D. Sn

9 / 30

9. What is the process by which a liquid changes into a gas at its boiling point?

A. Vaporization

B. Evaporation

C. Condensation

D. Sublimation

10 / 30

10. Which of the following is a unit of measurement for force?

A. Newton

B. Volt

C. Joule

D. Watt

11 / 30

11. Which of the following elements is a halogen?

A. Sodium

B. Calcium

C. Iron

D. Chlorine

12 / 30

12. What is the chemical formula for water?

H₂O

H₂O₂

CO₂

CH₄

13 / 30

13. What is the chemical formula for table salt?

A. HCl

B. NaOH

C. NaCl

D. H2SO4

14 / 30

14. What is the SI unit of frequency?

A. Ohm

B. Meter

C. Pascal

D. Hertz

15 / 30

15. Which of the following is NOT a function of the skeletal system?

A. Support and protection of internal organs

B. Production of blood cells

C. Regulation of body temperature

D. Facilitation of movement

16 / 30

16. Which of the following is NOT a part of the human digestive system?

A. Liver

B. Stomach

C. Small intestine

D. Kidney

17 / 30

17. Which organelle is known as the powerhouse of the cell?

A. Ribosome

B. Nucleus

C. Mitochondrion

D. Golgi apparatus

18 / 30

18. Which of the following is not a noble gas?

A. Helium

B. Nitrogen

C. Neon

D. Argon

19 / 30

19. What is the chemical symbol for potassium?

A. K

B. Pb

C. Pt

D. P

20 / 30

20. According to Ohm's Law, the current passing through a conductor is directly proportional to:

A. Resistance

B. Temperature

C. Voltage

D. Capacitance

21 / 30

21. Which gas is most abundant in the Earth's atmosphere?

A. Helium

B. Oxygen

C. Carbon dioxide

D. Nitrogen

22 / 30

22. Which of the following is NOT a function of the nervous system?

A. Regulation of body temperature

B. Processing sensory information

C. Transmitting signals between different parts of the body

D. Controlling voluntary movements

23 / 30

23. The acceleration due to gravity near the surface of the Earth is approximately:

A. 9.8 m/s^2

B. 6.2 m/s^2

C. 12.4 m/s^2

D. 5.6 m/s^2

24 / 30

24. What is the primary function of the respiratory system?

A. Exchanging gases between the body and the environment

B. Digesting food and absorbing nutrients

C. Pumping blood throughout the body

D. Regulating body temperature

25 / 30

25. The SI unit of electric charge is:

A. Ohm

B. Coulomb

C. Volt

D. Ampere

26 / 30

26. Which of the following is an example of a vector quantity?

A. Energy

B. Temperature

C. Mass

D. Velocity

27 / 30

27. Which of the following is a noble gas?

A. Oxygen

B. Helium

C. Hydrogen

D. Nitrogen

28 / 30

28. Which of the following is an example of a chemical change?

A. Boiling water

B. Melting ice

C. Rusting iron

D. Cutting paper

29 / 30

29. What is the SI unit of power?

A. Ohm

B. Watt

C. Joule

D. Newton

30 / 30

30. What is the primary function of red blood cells in the human body?

A. Fighting infections

B. Carrying nerve impulses

C. Blood clotting

D. Transportation of oxygen

Your score is

The average score is 28%

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