Physics
Grade-7
Easy
Question
Direction : Identify the energy common in each of the examples given.
Stretching a rubber band , Playing with elastic
- Thermal
- Elastic
- Mechanical
- Sound
Hint:
Elastic
The correct answer is: Elastic
When you stretch a rubber band, the energy transferred to stored in the form of Elastic potential energy. When elastic is stretched, itis loaded with potential energy, when released there is a shift to kinetic energy.
Potential energy is energy held by an object because of its position relative to other objects, stresses within itself, its electric charge or other factors.
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¶Before being employed as power, machines were frequently used to convert various energy sources. We can use mechanical energy any way we want or need it to function once it has been altered in a specific way. E.g., A tool that works by using mechanical energy is a hammer. A hammer's ability to exert force on a nail to move it is made possible by the mechanical energy it possesses. The hammer can function on the nail because it possesses mechanical energy (kinetic energy). Work-enabling energy is known as mechanical energy.
¶
¶Before being employed as power, machines were frequently used to convert various energy sources. We can use mechanical energy any way we want or need it to function once it has been altered in a specific way. E.g., A tool that works by using mechanical energy is a hammer. A hammer's ability to exert force on a nail to move it is made possible by the mechanical energy it possesses. The hammer can function on the nail because it possesses mechanical energy (kinetic energy). Work-enabling energy is known as mechanical energy.
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¶
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