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3RD TERM PHYSICS SS 2 - Quiz
Contributed by: Onosue
  • 1. The electric field intensity at a point is defined as the_____
A) electric potential per unit charge
B) work done per unit distance
C) force per unit positive test charge
D) charge per unit area
  • 2. The SI unit of electric field intensity is________
A) N/C
B) J/C
C) V
D) C/N
  • 3. The force between two point charges is given by______
A) Newton's law
B) Ohm's law
C) Faraday's law
D) Coulomb's law
  • 4. Two like charges placed close to each other will______
A) repel
B) remain stationary
C) attract
D) produce current
  • 5. A magnetic field is produced by________
A) sound waves
B) moving electric charges
C) heat energy
D) stationary charges only
  • 6. The SI unit of magnetic flux density is_______________
A) Weber
B) Henry
C) Ampere
D) Tesla
  • 7. Which rule gives the direction of the magnetic field around a straight current-carrying conductor? A. B. C. D.
A) Right-Hand Grip Rule
B) Fleming's Right-Hand Rule
C) Fleming's Left-Hand Rule
D) Lenz's Law
  • 8. The material commonly used as the core of an electromagnet is__________
A) steel
B) soft iron
C) brass
D) aluminium
  • 9. The strength of an electromagnet can be increased by_________
A) reducing the current
B) increasing the current
C) reducing the number of turns
D) removing the core
  • 10. Electromagnetic induction was discovered by__________
A) Michael Faraday
B) Isaac Newton
C) Albert Einstein
D) James Watt
  • 11. Electromagnetic induction occurs when there is__________
A) no current in a circuit
B) relative motion between a magnet and a conductor
C) constant resistance
D) a stationary magnet near a coil
  • 12. The direction of induced current is determined by_______
A) Fleming's Left-Hand Rule
B) Newton's law
C) Ohm's law
D) Fleming's Right-Hand Rule
  • 13. An electric generator converts_________
A) heat energy to electrical energy
B) electrical energy to mechanical energy
C) light energy to heat energy
D) mechanical energy to electrical energy
  • 14. An electric motor converts_________
A) sound energy to electrical energy
B) heat energy to electrical energy
C) mechanical energy to electrical energy
D) electrical energy to mechanical energy
  • 15. Electromagnetic waves can travel through_______
A) vacuum
B) gases only
C) solids only
D) liquids only
  • 16. Which of the following has the longest wavelength?
A) Gamma rays
B) Radio waves
C) X-rays
D) Ultraviolet rays
  • 17. Which electromagnetic wave is commonly used in satellite communication?
A) X-rays
B) Gamma rays
C) Microwaves
D) Infrared rays
  • 18. Which of the following is not an electromagnetic wave?
A) Radio waves
B) Microwaves
C) Sound waves
D) X-rays
  • 19. Electromagnetic waves all travel in a vacuum at approximately______
A) 3.0 x 10⁷ m/s
B) 3.0 x 10⁹ m/s
C) 3.0 x 10⁶ m/s
D) 3.0 x 10⁸m/s
  • 20. The electric field around a positive charge is directed__________
A) away from the charge
B) anticlockwise
C) towards the charge
D) clockwise
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