Grade 12 Energy Transformation Worksheet
Explore the principles of energy transformation, including conservation of energy, different forms of energy, and energy efficiency, with this Grade 12 science worksheet.
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Energy Transformation
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which of the following best describes the Law of Conservation of Energy?
Energy can be created and destroyed.
Energy can be transformed from one form to another, but not created or destroyed.
Energy is always lost during transformation.
Energy only exists in one form.
2. In a hydroelectric power plant, what is the primary energy transformation?
Chemical to electrical
Thermal to mechanical
Gravitational potential to kinetic to electrical
Nuclear to thermal
1. The efficiency of an energy transformation is the ratio of useful energy output to the total energy .
2. When a light bulb is turned on, electrical energy is transformed into light and energy.
1. Explain the difference between renewable and non-renewable energy sources, providing an example for each.
1. According to the second law of thermodynamics, the entropy of an isolated system can only increase over time.
True
False
3. Observe the energy pyramid below. What does this diagram represent in terms of energy transformation within an ecosystem?
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