F5C2: Forces & Pressure

Question 1

Archimedes’ principle

Answer 1

when an object is immersed fully or partially in a fluid, the weight of fluid displaced is equal to the buoyant force experienced by the object

Question 2

Bernoulli’s principle

Answer 2

in a moving fluid, the points which have a higher velocity will experience a lower pressure, while a point with lower velocity will experience higher pressure

Question 3

buoyant force

Answer 3

an upward force acting on an object partially or fully immersed in a fluid

Question 4

Pascal’s principle

Answer 4

when pressure is applied to an enclosed fluid, the pressure will be transferred uniformly throughout the fluid

Question 5

pressure

Answer 5

the force acting normally per unit area of the surface