Physics
Grade-7
Easy
Question
Direction : Identify the energy in each of the case.
Switch board
- Thermal
- Chemical
- Mechanical
- Electrical
Hint:
Electrical
The correct answer is: Electrical
An electric switch board is a device that distributes electricity from one or more sources of supply to several smaller load circuits. A switch board is a component of an electrical distribution system which divide and electrical power feed into branch circuits while providing a protective circuit breaker or fuse for each circuit in a common enclosure.
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Which type of energy is produced when the handle of a pencil sharpener turns?
¶Potential and kinetic energy sources from which mechanical energy is generated by converting them into power. Turbines powered by steam, water, wind, gas, or liquid fuels are a few examples of this.
¶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.
¶
Which type of energy is produced when the handle of a pencil sharpener turns?
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¶Potential and kinetic energy sources from which mechanical energy is generated by converting them into power. Turbines powered by steam, water, wind, gas, or liquid fuels are a few examples of this.
¶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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Heat is another name for
Heat is another name for
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The vibrating diaphragm of a drum emits energy in the form of _____.
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The energy obtained from electric cells and batteries as a result of a chemical reaction is called ______.
The energy obtained from electric cells and batteries as a result of a chemical reaction is called ______.
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The energy coming from the Sun for the last billion years is the result of a
The energy coming from the Sun for the last billion years is the result of a
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The energy released in the form of nuclear radiation, in addition to the heat and light during nuclear reactions, is known as
The energy released in the form of nuclear radiation, in addition to the heat and light during nuclear reactions, is known as
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A moving car possesses
A moving car possesses
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Vibrations of electrically charged particles produce ______ energy.
Vibrations of electrically charged particles produce ______ energy.
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Vibrations of an object cause ____ energy.
Vibrations of an object cause ____ energy.
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______ energy is the energy of moving electrons.
______ energy is the energy of moving electrons.
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________ energy is abundant in molecules with a high number of atom-to-atom bonds.
________ energy is abundant in molecules with a high number of atom-to-atom bonds.
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