Pressure
Pressure
When a force is applied in a CONFINED fluid, an increase in pressure in that confined space is transmitted equally to all parts of the fluid this creates pressure.
WHICH PRINCIPLE IS THIS DEFINITION?
PASCAL, ARCHIMEDES,BERNOULLI
PASCAL
Water exerts a force on submerged objects. ___________ force acts against gravity and makes objects feel lighter.
Bouyant
Another word for WEIGHT force of a flying object is ______________?
Gravity
What is another word for Drag on an object in fluid?
Friction
Force(N)/Area(m squared) is the formula to what?
Pressure
This principle relates the amount of water a submerged object displaces to the buoyant force on the object.
Pascal ,Archimedes,Bernoulli
Archimedes
If an object's weight is more than the buoyant force, then the object will _____________.
Sink or Float
Sink
A force caused by the gravitational attraction of the Earth.
Weight(gravity)
Why can fish swim in water?
They are permeable to water. Water flows through them.
What is pressure measured in?
A) Newtons
B) Pascals
C) Meters
Pascals
This principle, the pressure exerted by a moving stream of fluid is less than the pressure of the surrounding fluid.
Pascal, Archimedes or Bernoulli's
Bernoulli
If an object weighs less than the water it displaces or its buoyant force, then it will __________.
Sink or Float?
The force which moves an aircraft through the air, generated by an engine?
Thrust
Why does air pressure not squish or crush humans?
We are permeable to Air. We can take in air through our nose, ear and mouth. Air runs through our bodies to keep air pressure from affecting humans.
________________ is a non-solid state of matter that can easily flow
Fluid
What is the Pressure exerted by a book that has an Area of 0.2 meters squared and the weight of 10N?
10N/0.2 m squared= 50 pascals
What opposes buoyant force ?
Gravity opposes buoyant force
The force that resists any object trying to move through a fluid is called____________.
Drag
True of False:
Sharks do not have a swim bladder like other fish, they have to constantly swim to avoid sinking to the bottom of the ocean.
True
What is the Pressure exerted by a book that has an Area of 10 meters squared and the weight of 100N?
100N/10 m squared = 10 Pascals
What is the Pressure exerted by a book that has an Area of 5 meters squared and the weight of 100N?
100 N/ 5 meters squared = 20 pascals
Why does a Cruise ship float? The ship is designed to displaced a lot of water. The ship is designed so that the density of the ship gets ___________________?
smaller or bigger
Smaller, the ship is designed to spread out the mass, so that the density of the ship is less than the water the ship is displacing so that the ship can float.
This is a mechanical force generated by a solid object through a fluid. This force opposes weight(gravity) of an airplane and holds the plane in the air.
Lift
What is the only fluid to have a density of 1?
Water