Archimedes Principle
The buoyant force on an object is equal to what?
Weight of the liquid displaced
A machine that takes advantage of the fact that pressure is distributed equally in all directions in a confined fluid.
What is a jack?
A fast moving fluid has ________ pressure.
What is its lower?
A force exerted by the particles of a fluid over a certain area to the particle's weight and motion.
What is pressure?
The ________ force points upward when an object is fully floating.
What is buoyancy?
An upward force exerted by a fluid on a submerged object.
What is buoyancy?
A change in pressure at any given point in a fluid is transmitted equally and unchanged in all directions throughout the fluid. What is this called?
What is Pascal's Principle
Lift points in the ________ direction.
What is upward?
Because of gravity, fluid pressure increases with ________.
What is depth?
What happens to the density of a diver when they exhale?
What is density increases
A ship has a weight of 30,000N. What is the buoyant force on the ship if it is floating?
30,000N
A stopper that slides up and down in a tube
What is a piston?
A slow moving velocity has ________ pressure
Higher
When the area of a pipe decreases the pressure ________
increases
A boat will sink if the weight of the water that it displaces is _______ than the weight of the boat itself.
What is less?
A 100kg rock sinks to the bottom of the pond if it dipsalces 0.05 liters of water what is its weight?
490N
The area of Piston 1 is 15 cm2, the area of Piston 2 is 250 cm2 Force 2 is 450 Newton. Find Force 1
What is 27N
A submarine's ballast system has water flowing through pipes. At one point, the water flows at 4 m/s with 500,000 Pa pressure. The pipe then descends 5 meters and widens, reducing the velocity to 2 m/s. Calculate the new pressure.
557,000pa
When the area of a pipe increases the pressure ________
What is decreases?
If an object is floating does it have any weight to it?
No weight
A turtle floats just under the surface of the water in a lake. If the turtle weighs 10N what is the buoyant force on the turtle?
10N
The input and output pistons of a hydraulic jack are respectively 1 cm and 4 cm in diameter. How much mass can the jack lift if a force of 110 N is applied to the input piston and its efficiency is 75%?(only 75% of the force is able to transfer.)
1,320N
An example of fluids moving from areas of higher pressure to areas of lower pressure
What is: a straw, breathing / lungs vacuum cleaner, fan
When the pressure of a pipe decreases the velcoity will _______
What is increases?
If an object is sinking does it have any weight to it?
Yes it does have weight to it