PADI Open Water Diver Study guides, Class notes & Summaries

SCUBA - Answer- Self contained underwater breathing apparatus What is the pressure change for each 10m/33ft of depth change? - Answer- 1 bar/1 ata/1 atmosphere What is the relationship between my depth in water and the pressure? - Answer- The deeper you go in water, the more the pressure increases Pressure is expressed as the weight of air What is the relationship between pressure, and the volume and the density of air? - Answer- As pressure increases, the gas volume decreases and the ...

PADI OPEN WATER Final Exam A with 100% Correct Answers 2024 Pdf 1. If an object is neutrally buoyant (does not sink or float) in fresh water; the same object placed into salt water would Answer sink. 2. Imagine you blow up a balloon, tie it off, and take it to the bottom of the swimming pool. What will happen to the balloon and the air inside it Answer The balloon will get smaller and the air inside the balloon will be more dense (molecules move closer together). 3. Imagine you turn a glass...

When is an object positively buoyant? - answer-When it displaces a volume of water weighing more than its own weight. When is an object negatively buoyant? - answer-When it displaces a volume of water weighing less than its own weight. When is an object neutrally buoyant? - answer-When it displaces a volume of water weighing the same as its own weight. Why two pieces of equipment do you use to control your buoyancy? - answer-BCD, Lead weight What does buoyancy...

What is the most important rule of scuba diving? - answer-Do not hold your breath Breathe continuously What are the consequences of breaking the most important rule in scuba diving? - answer-Lung over expansion severe injuries, death What is a reverse block? - answer-pain and discomfort caused by expanding air trapped inside an air space during ascent What should you do if you feel discomfort during ascent due to air expansion in the ears, sinuses, stomach, intestine...

What will the buoyancy of an object be (positive, neutral, or negative) if it displaces an amount of water: a. more than its own weight? b. less than its own weight? c. equal to its own weight? - answer-a. positive b. negative c. neutral How does the buoyancy of an object differ in fresh water compared to salt water. - answer-Because salt water weighs more than fresh water, it causes more buoyancy (more upward force) What is the relationship between increasing and decrea...

SCUBA - answer-Self contained underwater breathing apparatus What is the pressure change for each 10m/33ft of depth change? - answer-1 bar/1 ata/1 atmosphere What is the relationship between my depth in water and the pressure? - answer-The deeper you go in water, the more the pressure increases Pressure is expressed as the weight of air What is the relationship between pressure, and the volume and the density of air? - answer-As pressure increases, the gas volum...

1) If an object is neutrally buoyant (does not sink or float) in fresh water, the same object placed into salt water would A sink. B either sink or float. C do nothing. D float. - answer-D 2) I blow up a balloon, tie it off, and take it to the bottom of the swimming pool. What will happen to the balloon and the air inside it? A The balloon will get bigger and the air inside the balloon will be less dense (molecules move further apart). B The balloon will get smaller and the ai...

As a newly certified PADI Open Water Diver, I will be trained to dive with buddy as deep as - answer-18 metres/60 feet As you descend in water, the pressure - answer-increases A depth change of 10 metres/33 feet causes a pressure change of - answer-1 bar/ata (atmosphere) if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be - answer-2 litres (the density of the air would be three times the density at the surface) A balloon fully...

If an object is neutrally buoyant in fresh water, the same object placed into salt water would... - answer-Float I blow up a balloon, tie it off, and take it to the bottom of the swimming pool. What will happen to the balloon and the air inside it? - answer-The balloon will get smaller and the air inside the balloon will be more dense I turn a glass upside down, trap the air in it by putting it in water, and then I take the glass down to 10 m/33 ft. The air space would... - ...

If an object is neutrally buoyant in fresh water, the same object placed into salt water would... - answer-Float I blow up a balloon, tie it off, and take it to the bottom of the swimming pool. What will happen to the balloon and the air inside it? - answer-The balloon will get smaller and the air inside the balloon will be more dense I turn a glass upside down, trap the air in it by putting it in water, and then I take the glass down to 10 m/33 ft. The air space would... - ...

D float. Salt water is heavier than fresh water because it has dissolved minerals in it. This means it causes more upward force (buoyancy) on an object. An object that is neutrally buoyant in fresh water would float in salt water because there is greater upward force. See Being a Diver I - Buoyancy and Controlling Buoyancy. - answer-1) If an object is neutrally buoyant (does not sink or float) in fresh water, the same object placed into salt water would A sink. B either sink or ...