Potential and Kinetic Energy Worksheet
Explore the concepts of potential and kinetic energy with this grade 9 science worksheet, covering definitions, calculations, and real-world examples.
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Potential and Kinetic Energy
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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 best describes potential energy?
Energy of motion
Stored energy due to position or state
Energy transferred as heat
Energy from light
2. An object at rest on a high shelf possesses what type of energy?
Kinetic energy
Chemical energy
Gravitational potential energy
Thermal energy
3. The formula for calculating kinetic energy is KE = .
4. Potential energy is converted into kinetic energy as an object .
5. A 5 kg bowling ball is held 2 meters above the ground. Calculate its gravitational potential energy. (Use g = 9.8 m/s²)
6. A car with a mass of 1200 kg is traveling at a speed of 20 m/s. Calculate its kinetic energy.
7. The total mechanical energy (potential + kinetic) of a system is always conserved, assuming no external forces like friction or air resistance.
True
False
8. Observe the image below, which depicts an energy pyramid. While primarily used in ecology, it can illustrate the concept of energy transfer and transformation.
How does the concept of energy transformation (e.g., potential to kinetic) relate to the flow of energy depicted in this pyramid?