4. Energy Resources and Energy Transfers - Physics
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9 Terms
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What are the units for mass, energy, distance, speed, acceleration, force, time, and power?
kg, J, m, m/s, m/s², N, s, W
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What are the types of energy stores?
Chemical, kinetic, gravitational, elastic, thermal, magnetic, electrostatic, nuclear
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What are the methods of energy transfer?
Mechanically, electrically, heating, radiation
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What is the principle of conservation of energy?
Energy cannot be created or destroyed
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What is the efficiency formula?
efficiency = (useful energy / total energy) × 100%
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What is the formula for work done?
W = F × d
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What is the formula for gravitational potential energy?
GPE = mgh
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What is the formula for kinetic energy?
KE = ½ mv²
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What is the formula for power?
P = W ÷ t
Note 
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