PADI Exercise 1-5 Flashcards
Buoyancy is a force that pushes an object in water upward. True of False?
True
My sunglasses case falls out of my pocket into the water, but fortunately, it floats so I retrieve it. I would say my sunglasses case is ___ buoyant.
(a) positively
Salt water causes more buoyancy than fresh water because it is less dense and weighs less. True of False?
False. Salt water causes more buoyancy because it is more dense and weights more; buoyancy results from the weight of the water displaced.
To control my buoyancy, normally I will use my weight system and my ___
(d) BCD
When I defend, my buoyancy tends to ___. When I ascend, it tends to ___.
(c) decrease, increase
Underwater, when I inhale, my buoyancy ___
(b) increases slightly
It is important to master buoyancy control because it affects almost everything I do in and underwater. True of False?
True