Convert joule to watt-second
Please provide values below to convert joule [J] to watt-second [W*s], or Convert watt-second to joule.
1 J = 1 W*s. To convert joule to watt-second, multiply the value by 1; to go the other way, divide by it (1 W*s = 1 J). Both units measure energy and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 J = 1 W*s
- 1 W*s = 1 J
- 10 J = 10 W*s
- 100 J = 100 W*s
How to Convert Joule to Watt-Second
1 J = 1 W*s
Example: convert 15 J to W*s:
15 J = 15 × 1 W*s = 15 W*s
Joule to Watt-Second Conversion Table
| joule | watt-second |
|---|---|
| 1 J | 1 W*s |
| 2 J | 2 W*s |
| 3 J | 3 W*s |
| 5 J | 5 W*s |
| 10 J | 10 W*s |
| 20 J | 20 W*s |
| 50 J | 50 W*s |
| 100 J | 100 W*s |
| 500 J | 500 W*s |
| 1000 J | 1000 W*s |
Joule
The joule (J) is the SI unit of energy, work, and heat, defined as the work done when a force of one newton acts over a distance of one meter.
History/Origin
The joule was named after James Prescott Joule in 1889 to honor his work in energy and thermodynamics. It was adopted as the SI unit of energy in 1948.
Current Use
The joule is widely used in physics, engineering, and everyday contexts to quantify energy, work, and heat in various applications, including electricity, mechanics, and thermodynamics.
Watt-Second
A watt-second (W·s) is a unit of energy equivalent to one joule, representing the amount of energy transferred or converted when one watt of power is applied for one second.
History/Origin
The watt-second originated from the SI system of units, where the watt (W) is the SI derived unit of power, and the second (s) is the SI base unit of time. It has been used historically in physics and engineering to quantify energy, especially in contexts where energy transfer occurs over short durations.
Current Use
The watt-second is primarily used in scientific and engineering contexts to measure small amounts of energy, such as in electrical and mechanical systems. It is often replaced by the joule in modern applications but remains a recognized unit within the energy converter category.
Frequently Asked Questions
What is 1 joule in watt-second?
1 joule (J) = 1 watt-second (W*s).
How do you convert joule to watt-second?
Multiply the joule value by 1. For example, 25 J × 1 = 25 W*s.
What is 10 joule in watt-second?
10 J = 10 W*s.
Which unit is larger, the joule or the watt-second?
The watt-second is the larger unit: 1 J equals only 1 W*s.