Physics

Surface Tension Calculator

Find surface tension from force and wetted length.

Calculated Output

Surface tension (N/m) 0.073

Formula: γ = F ÷ L

Step-by-Step Breakdown

1. Values used:

2. Force = 0.0146 N

3. Wetted length = 0.2

5. Surface tension = Force / Wetted length = 0.0146 / 0.2 = 0.073N/m

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The math behind it

γ = F ÷ L. Water is about 0.072 N/m at room temperature.

0.0146 N over 0.2 m → 0.073 N/m (water).

Why do insects walk on water?

Surface tension supports their weight without breaking the surface.