Mechanical Energy Worksheet
Explore the concepts of mechanical energy, potential energy, and kinetic energy with this Grade 9 science worksheet.
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Mechanical 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 is the sum of kinetic and potential energy?
Thermal energy
Chemical energy
Mechanical energy
Nuclear energy
2. An object at rest at a certain height possesses what type of energy?
Kinetic energy
Potential energy
Elastic energy
Chemical energy
3. The energy an object possesses due to its motion is called energy.
4. The formula for gravitational potential energy is PE = mgh, where 'm' is mass, 'g' is acceleration due to gravity, and 'h' is .
5. According to the Law of Conservation of Energy, energy cannot be created or , only transformed from one form to another.
6. A car speeding down a highway has a high amount of potential energy.
True
False
7. When a ball is thrown upwards, its kinetic energy is converted into potential energy.
True
False
8. Define mechanical energy and provide an example of where it is observed.
9. A 2 kg ball is dropped from a height of 10 meters. Calculate its potential energy at that height (assume g = 9.8 m/s²).
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