86. What is the SI unit of power?
a) Watt
b) Joule
c) Newton
d) Pascal
Answer: a) Watt
87. What is the process by which a gas turns into a plasma?
a) Ionization
b) Vaporization
c) Condensation
d) Sublimation
Answer: a) Ionization
88. What is the formula for electric power?
a) P = IV
b) P = IR
c) P = V²/R
d) P = I²R
Answer: a) P = IV
89. Which law states that for every action, there is an equal and opposite reaction?
a) Newton’s First Law
b) Newton’s Second Law
c) Newton’s Third Law
d) Law of Conservation of Energy
Answer: c) Newton’s Third Law
90. What is the process by which a liquid turns into a gas at a temperature below its boiling point?
a) Vaporization
b) Sublimation
c) Evaporation
d) Condensation
Answer: c) Evaporation
