免费弹性势能计算器
根据弹簧常数和形变量计算弹性势能。
N/m
m
Elastic Potential Energy
1.0000 J
Elastic Potential Energy vs Spring Constant (k)
公式
## Elastic Potential Energy Energy stored in a deformed elastic object (like a spring) follows Hooke's law. ### Formula **PE = (1/2) * k * x²** where k is the spring constant and x is the displacement from the natural length.
计算示例
A spring with k = 200 N/m is compressed 0.1 m.
- 01PE = 0.5 * k * x²
- 02PE = 0.5 * 200 * 0.01
- 03PE = 1 J
常见问题
What is a spring constant?
The spring constant k (units: N/m) measures stiffness. A higher k means a stiffer spring that requires more force per unit of displacement.
Does compression or extension matter?
No. The energy formula uses x², so the same magnitude of compression or extension stores the same energy.
What is Hooke's law?
Hooke's law states F = -k*x, meaning the restoring force is proportional to displacement. It holds for small deformations.
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