PES SS 2 Physics (Obj) 3rd Term Exam 2025-2026
  • 1. Electrical continuity means that
A) There is a complete path for current to flow
B) Voltage is zero
C) Resistance is infinite
D) Current cannot flow
  • 2. Which instrument is commonly used to test continuity?
A) Ammeter
B) Continuity tester
C) Hydrometer
D) Voltmeter
  • 3. A continuity tester indicates continuity when
A) The circuit is broken
B) The wire melts
C) The lamp or buzzer operates
D) The battery is removed
  • 4. Which of these is a conductor?
A) Copper
B) Rubber
C) Plastic
D) Wood
  • 5. Which material is an insulator?
A) Plastic
B) Copper
C) Silver
D) Aluminium
  • 6. Continuity testing helps to detect
A) Voltage only
B) Colour of wires
C) Weight of wires
D) Broken wires
  • 7. Continuity testing is carried out when the circuit is usually
A) Connected to mains
B) Energized
C) Overloaded
D) Switched off
  • 8. The SI unit of electrical resistance is
A) Ohm
B) Ampere
C) Watt
D) Volt
  • 9. Electroplating is the process of
A) Heating metals
B) Melting metals
C) Coating one metal with another using electricity
D) Mixing metals
  • 10. Electroplating is based on
A) Distillation
B) Electrolysis
C) Filtration
D) Evaporation
  • 11. The object to be electroplated is connected to the
A) Earth wire
B) Negative terminal
C) Positive terminal
D) Neutral wire
  • 12. The coating metal is connected to the
A) Negative terminal
B) Neutral wire
C) Earth wire
D) Positive terminal
  • 13. The electrolyte used in electroplating must
A) Be an insulator
B) Be solid
C) Contain sand
D) Contain ions of the coating metal
  • 14. One use of electroplating is to
A) Reduce mass
B) Melt metals
C) Prevent corrosion
D) Increase resistance
  • 15. Which metal is commonly used for electroplating?
A) Magnesium
B) Nickel
C) Potassium
D) Sodium
  • 16. The negative electrode is called the
A) Electrolyte
B) Terminal
C) Cathode
D) Anode
  • 17. The positive electrode is the
A) Switch
B) Cathode
C) Anode
D) Fuse
  • 18. During electroplating, metal ions are deposited on the
A) Anode
B) Battery
C) Cathode
D) Electrolyte
  • 19. Which of these is NOT an application of electroplating?
A) Rust prevention
B) Decorative coating
C) Jewellery making
D) Water purification
  • 20. A.C. stands for
A) Alternating Current
B) Automatic Current
C) Applied Current
D) Active Current
  • 21. The device that increases or decreases A.C. voltage is
A) Resistor
B) Transformer
C) Fuse
D) Battery
  • 22. Alternating current changes
A) Colour
B) Direction periodically
C) Resistance
D) Temperature
  • 23. The unit of frequency is
A) Volt
B) Hertz
C) Ohm
D) Joule
  • 24. A resistor in an A.C. circuit is used to
A) Limit current
B) Produce light only
C) Increase voltage
D) Store energy
  • 25. Frequency is the number of cycles per
A) Hour
B) Minute
C) Day
D) Second
  • 26. The SI unit of electric current is
A) Watt
B) Ampere
C) Ohm
D) Volt
  • 27. A battery converts
A) Chemical energy to electrical energy
B) Solar energy to heat
C) Heat to sound
D) Electrical energy to heat
  • 28. A dry cell is an example of
A) Solar cell
B) Fuel cell
C) Secondary cell
D) Primary cell
  • 29. A rechargeable battery is called a
A) Dry cell
B) Primary cell
C) Secondary cell
D) Simple cell
  • 30. The lead-acid battery is commonly used in
A) Calculators
B) Radios only
C) Watches
D) Cars
  • 31. Which of these is a primary cell?
A) Car battery
B) Nickel-cadmium battery
C) Dry cell
D) Lead-acid accumulator
  • 32. A battery supplies
A) Mechanical energy
B) Wind energy
C) Electrical energy
D) Nuclear energy
  • 33. One disadvantage of a primary cell is that it
A) Is rechargeable
B) Cannot be recharged
C) Produces high voltage
D) Lasts forever
  • 34. A solar collector converts solar energy into
A) Heat energy
B) Electrical energy only
C) Nuclear energy
D) Wind energy
  • 35. The main source of energy for a solar collector is the
A) Moon
B) Water
C) Sun
D) Wind
  • 36. Solar energy is
A) Non-renewable
B) Artificial
C) Exhaustible
D) Renewable
  • 37. A solar collector works best on a
A) Windy night
B) Rainy day
C) Cloudy day
D) Sunny day
  • 38. Which component absorbs solar radiation?
A) Reflector
B) Fuse
C) Battery
D) Absorber plate
  • 39. Solar collectors are mainly used for
A) Cooling water
B) Heating water
C) Producing petrol
D) Electroplating
  • 40. One limitation of solar collectors is that they
A) Use petrol
B) Work without sunlight
C) Produce smoke
D) Depend on sunlight
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