1. Print Tutorial Click Screen for Next Step Return to Main Menu Fluid Unit This presentation includes the basic terms needed to study fluids in a Physics class.

2. Print Tutorial Click Screen for Next Step Return to Main Menu Fluid Unit Fluid A fluid is a substance that has the ability to flow and alter their shape.

3. Print Tutorial Click Screen for Next Step Return to Main Menu Fluid Unit Density Density is defined as a substance’s mass per unit of volume. Equation ρ = mass/volume Units kg/m 3 Units g/cm 3

4. Print Tutorial Click Screen for Next Step Return to Main Menu Fluid Unit Pressure Force divided by area Equation P = F/A Metric Units N/m 2 English Units lbs/in 2

5. Print Tutorial Click Screen for Next Step Return to Main Menu Fluid Unit Pascal’s Principle Pressure is evenly distributed though out a fluid equally on the walls of the container.

6. Print Tutorial Click Screen for Next Step Return to Main Menu Fluid Unit Buoyant Force The force that counteracts weight of an object floating. The force is upward and enough to make an object float. The force is downward if the object is submerged in a fluid.

7. Print Tutorial Click Screen for Next Step Return to Main Menu Fluid Unit Archimedes’ Principle The magnitude of a buoyant force is equal and opposite direction to the weight of the fluid displaced by the object.

8. Print Tutorial Click Screen for Next Step Return to Main Menu Fluid Unit Absolute Pressure The resulting pressure upon an object due to the depth of the fluid. There is more pressure the deeper an object is placed in a fluid. P = P 0 + ρgh

9. Print Tutorial Click Screen for Next Step Return to Main Menu Fluid Unit Bernoulli's Principle Pressure decreases when the velocity of a fluid increases.

10. Print Tutorial Click Screen for Next Step Return to Main Menu Fluid Unit