Multiple choice

The force acting on a unit area is called

  1. surface tension

  2. buoyant force

  3. pressure

  4. thrust

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pressure is defined as force per unit area (P = F/A). Surface tension is the force per unit length at a liquid's surface. Buoyant force is the upward force on a submerged object. Thrust is the total force acting perpendicular to a surface, not normalized by area.