Which of the following options represents only the units of energy?
- AOption (a)
Joule, Calorie, Kilowatt hour
- BOption (b)
Joule, Newton, Kilowatt hour
- COption (c)
Joule, Calorie, Newton
- DOption (d)
Calorie, Kilowatt hour, Newton
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Correct answer
Joule, Calorie, Kilowatt hour
Why this answer is correct
The correct answer is Joule, Calorie, Kilowatt hour
Key Points
- The option that represents only units of energy is Joule, Calorie, Kilowatt hour.
- Joule (J) is the standard unit of energy in the International System of Units (SI).
- Calorie (cal) is a unit of energy commonly used to measure heat energy.
- Kilowatt hour (kWh) is another common unit of energy used to measure electrical energy consumption.
Additional Information Other units
| Unit | Description | Symbol |
|---|---|---|
| Electronvolt (eV) | Unit used in atomic and particle physics. 1 eV is the energy gained or lost by an electron moving through an electric potential difference of 1 volt. | eV |
| Thermal Unit (Btu) | Used in the United States for heating and cooling purposes. 1 Btu is the amount of heat required to raise the temperature of 1 pound of water by 1°F. | Btu |
| Watt-hour (Wh) | Another unit for measuring energy, especially in the context of electrical power consumption. | Wh |