THE PRACTICE STUDIO
Go slowly. Ask why. Make it yours.
PRACTICE / Excess pressure in drops and bubbles
Two surfaces support the bubble
A soap bubble has radius 2 mm and surface tension 0.030 N/m.
Find the pressure excess inside the bubble.
Organize the givens & assumptions
- r = 0.002 m
- γ = 0.030 N/m
Thin spherical soap film with two interfaces, identical constant surface tension and negligible film thickness.
- A
- B
- C
- D
Try it on paper first. Free sample problems in every collection include the complete reasoning: find one in this collection →