• Shuffle
Toggle On
Toggle Off
• Alphabetize
Toggle On
Toggle Off
• Front First
Toggle On
Toggle Off
• Both Sides
Toggle On
Toggle Off
Toggle On
Toggle Off
Front

### How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

Play button

Play button

Progress

1/25

Click to flip

### 25 Cards in this Set

• Front
• Back
• 3rd side (hint)
 What principle is used on a sprayer Bernoulli starts with a B According to ______principle,as the speed of a fluid increases, the pressure within the fluid decreases Bernoulli starts with a B airplane term that refers to when an airplane turns left or right yaw way backwards when a plane tilts back to front pitch what does a pitcher do when a plane has one wing tilting up and the other down roll you _______ on a river the ablility of a fluid to exert an upward force on an object placed on it buoyancy bouy??? ______-results in the apparent loss of weight of an object in a fluid Buoyancy upward force which acts in the opposite direction of gravity buoyancy force BF ______principle: the buoyant force on an object is equal to the weight of the fluid displaced by an object Archimedes A density of water 1g/cm cubed If an object is less dense than the fluid it is in, it will ____. If the object is more dense than the fluid it is in, it will ______. float & sink The engine produces _____which pushes the plane forward. thrust ______is opposed by drag(air resistence) which increases with the airplane's speed.THe thrust must create enough speed to generate lift thrust ______ the upward force on the airplane caused by movement of its wings through the air. For the plane to become airborne, the lift must exceed the plane's weight Lift _______ ________ to rise again, the submarine's weight must be decreased. Air is pumped into the ballast tanks to force the water out. The buoyant force acting on the submarine now exceeds the submarine's weight. positive buoyancy PB ______ ________once the submarine's ballast tanks hold enough water for the submarine's weight to equal the buoyant force, the submarine is said to have neutral buoyancy. It now has no tendency to rise or sink. Neutral buoyancy NB ______ ________ As long as it remains submerged, a submarine experiences a constant buoyant force. To overcome the buoyant force so the submarine can dive-that is, to achieve negatively buoyancy-its weight must increase. This is done by flooding the ballast tanks, replacing air with water. Negative buoyancy NeB According to______'s principle, the buoyant force on an object is equal to the weight of the fluid displaced by the object. Whereas the weight of an object acts downward, the buoyant force acts upward. Archimedes starts with an A According to ______'s principle,a change in pressure at any point in a fluid is transmitted equally and unchanged in all directions throughout the fluid. Pascals starts with a P device that uses pressurized fluid acting on pistons of different sizes to change a force. hydraulic system HS In a ____ _____ ____, an increased output force is produced because a ____ fluid pressure is exerted on the larger area of the output piston. hydraulic lift system /constant _____ ______ decreases as the altitude increases. Air Pressure P=F/A pressure equals force divided by area result of a force distributed over an area pressure SI unit of pressure pascal