AIC JS 1 Science 3rd C.A for 2nd Term
  • 1. ________ is the energy transferred to or from an object by means of a force acting on the object.
A) Power
B) Energy
C) Work
D) Friction
  • 2. Speed is measured by _________
A) Anometer
B) Multimeter
C) Speedometer
D) Voltmeter
  • 3. Mathematically, speed can be expressed as
A) Distance/Time
B) Displacement X Time
C) Distance X Time
D) Displacement/Time
  • 4. _____________ is the rate of change of distance moved in a specific direction.
A) Speed
B) Displacement
C) Distance
D) Velocity
  • 5. The ratio of the total distance travelled to the total time taken is called_______
A) Force
B) Work done
C) Average speed
D) Velocity
  • 6. Velometer is used to measure_______
A) Acceleration
B) Temperature
C) Velocity
D) Displacement
  • 7. One of these is the similarity between speed and velocity
A) They are measured by speedometer
B) Both are used in measuring distance
C) Both are vector quantity
D) Both are scalar quantity
  • 8. The rate of increase of velocity with time is called______
A) Linear acceleration
B) Distance
C) Change of velocity
D) Motion
  • 9. Mathematically, acceleration can be expressed as
A) Displacement/Time
B) Change in velocity/Time
C) Distance/Time
D) Distance X Time
  • 10. __________ is defined as the rate of change of distance moved in an unspecified direction.
A) Displacement
B) Acceleration
C) Speed
D) Velocity
  • 11. One of the following is not an agent of erosion.
A) Glacier
B) Wind
C) Water
D) Drainage
  • 12. Causes of soil erosion include the following except .........
A) Bush burning and bush clearing
B) Road construction and industrialisation
C) Felling of trees
D) Mulching
  • 13. The following are controls of soil erosion except
A) Road construction and industrialisation
B) Strip cropping
C) Planting of cover crops
D) Making ridges
  • 14. One of the following is a factor that influences bush burning.
A) Barrenness of the soil
B) Excessive release of CO2
C) Extinction of animals
D) Thunder strikes
  • 15. Felling of trees and clearing of the forest for certain reasons is termed as -------
A) Soil erosion
B) Bush burning
C) Bush clearing
D) Deforestation
  • 16. One of the following is a consequence of bush burning
A) Extinction of animals
B) Hunting
C) Cigarette butt
D) Natural gas seepage from the ground
  • 17. To prevent flooding, one of the following can be done.
A) Mulching
B) Making ridges
C) Construction of reservoir
D) Use of sandbags
  • 18. Air borne particles include the following except.....
A) Carbon black
B) Oil
C) Smoke
D) Cement dust
  • 19. Diarrhoea dysentery and cholera are diseases that result majorly from ------- pollution
A) Air
B) Land
C) Atmospheric
D) Water
  • 20. Physical methods of waste treatment include the following except --------
A) Polishing
B) Secondary
C) Primary
D) Tertiary
  • 21. One of the following is not an example of treated water.
A) Chlorinated water
B) Pipe-borne water
C) Distilled water
D) Spring water
  • 22. Water which does not lather readily with soap is described as --------
A) Liquid waste
B) Volatile waste
C) Semisolids
D) Hard water
  • 23. The following compounds cause the hardness of water except -----
A) MgSO4
B) CaSO4
C) Na2Cl
D) Ca(HCO3)_2
  • 24. Hardness of water can be classified into ------- and --------
A) Temporary and permanent
B) Secondary and Tertiary
C) Primary and secondary
D) Local and advance
  • 25. The most abundant element in the air is --------
A) Oxygen
B) Nitrogen
C) Water vapour
D) CO2
  • 26. One of the following is not a constituent of air.
A) Nitrogen
B) Calcium
C) Impurities
D) Noble vapour
  • 27. The most active constituent of air is ------
A) Carbondioxide
B) Nitrogen
C) Noble vapour
D) Oxygen
  • 28. ---------are chemical substances that can not be broken into simpler substances.
A) Atoms
B) Elements
C) Mixtures
D) Compounds
  • 29. Examples of organic compounds include all of the following except ------
A) Methane
B) Ethene
C) Benzene
D) Iodine
  • 30. Additives, dyes, perfumes are all examples of ---------- chemicals
A) Agrochemicals
B) Metallurgical
C) Laboratory
D) Industrial
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