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• Kinetic energy. CORRECT ANSWER: 0.5 × mass × speed²
• Elastic potential energy (on sheet). CORRECT ANSWER: 0.5 × spring
constant × extension²
• G.P.E.. CORRECT ANSWER: mass × gravitational field strength × height
• Change in thermal energy equation (on sheet). CORRECT ANSWER:
mass × specific heat capicity × change in temperature
• Power. CORRECT ANSWER: work done/ time (P=w/t)
• Efficiency. CORRECT ANSWER: useful output energy transfer/ total
input energy transfer
• Efficiency. CORRECT ANSWER: total useful power output/ total power
input
• Charge flow. CORRECT ANSWER: current x time (Q=IT)