Conservation of Energy Worksheet
This worksheet covers fundamental concepts of the conservation of energy, including definitions, types of energy, and energy transformations, suitable for Grade 11 science students.
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Conservation of Energy Worksheet
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
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 transformed from one form to another, but it cannot be created or destroyed.
Energy is always lost as heat in any transformation.
2. A roller coaster car at the top of a hill possesses mostly what type of energy?
Kinetic energy
Potential energy
Thermal energy
Chemical energy
3. The total mechanical energy of a system is the sum of its potential energy and energy.
4. When a ball is thrown upwards, its kinetic energy is transformed into energy as it rises.
5. In an ideal system, without air resistance or friction, the mechanical energy remains .
6. Explain the difference between an open, closed, and isolated system in terms of energy exchange.
7. According to the Law of Conservation of Energy, energy can be created or destroyed, but not transformed.
True
False
8. When a car brakes, its kinetic energy is primarily converted into thermal energy due to friction.
True
False
9. Observe the energy pyramid diagram. Describe how energy is conserved and transferred through different trophic levels, considering the energy losses at each stage.