Grade 7 Science: Energy
Explore different forms of energy, energy transformations, and the laws of conservation of energy with this comprehensive Grade 7 science worksheet.
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Grade 7 Science: 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 is an example of potential energy?
A car moving down a road
A ball sitting at the top of a hill
A person running
Sound waves traveling through air
2. What type of energy is released when chemical bonds are broken?
Thermal energy
Electrical energy
Chemical energy
Light energy
3. The Law of Conservation of Energy states that energy cannot be created or , but it can be transferred or transformed from one form to another.
4. energy is the energy of motion.
5. A hydroelectric power plant converts the energy of water into electrical energy.
6. Heat is a form of energy.
True
False
7. Light energy travels in waves.
True
False
8. Describe the difference between kinetic energy and potential energy. Provide an example of each.
9. Explain how a television transforms electrical energy into other forms of energy.
Match each type of energy with its description.
10. Thermal Energy
a. Energy stored in chemical bonds
11. Chemical Energy
b. Energy of moving objects
12. Kinetic Energy
c. Energy associated with the random motion of atoms and molecules