Conservation of Energy Worksheet
Explore the principles of conservation of energy with this grade 9 science worksheet, covering definitions, transformations, and practical applications.
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Conservation of Energy
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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 statements best describes the Law of Conservation of Energy?
Energy can be created but not destroyed.
Energy can be destroyed but not created.
Energy can be transferred or transformed, but the total amount remains constant.
Energy is always lost during transformation.
2. What type of energy is stored in a stretched rubber band?
Kinetic energy
Gravitational potential energy
Elastic potential energy
Chemical energy
3. According to the law of conservation of energy, the total energy in an isolated system remains .
4. When a ball is thrown upwards, its kinetic energy is transformed into energy.
5. A hydroelectric power plant converts the energy of water into electrical energy.
6. Energy can be created or destroyed, but it cannot be transformed from one form to another.
True
False
7. Describe a real-world example of energy transformation where potential energy is converted into kinetic energy and then back into potential energy.
8. Explain why a perpetually moving machine (perpetual motion machine) is impossible according to the Law of Conservation of Energy.
9. The diagram below shows an energy pyramid. Explain how the concept of conservation of energy applies to the flow of energy through different trophic levels in an ecosystem.
