Fluids and Pressure

When pressure is applied to a confined fluid, the increase in pressure is transmitted equally to all parts of the fluid. This fact is called________.

• Pascal's Principle

• Newton's Principle

• Archimedes' Principle

• Bernoulli's Principle

What is the formula for pressure?

• P=A/F

• P=FA

• P=F/A

To calculate pressure you need to know ...

• Force & Volume

• Density & Volume

• Power & Area

• Force & Area

The pressure resulting from a force of 50 N exerted over an area of 5 m² is

• 10 N

• 0.1 N

• 10 N/m2

• 0.1 Pa

When you increase your depth under water, the water pressure on your body

• increases

• decreases

• stays the same

According to ____, as the velocity of a fluid increases, the pressure exerted by the fluid decreases.

• Bernoulli’s principle

• Boyle’s law

• Charles’s law

• Archimedes’ principle

Explain the concept of pressure in fluids with examples.

• Pressure in fluids is the force exerted by the fluid per unit area. It is a scalar quantity and can be calculated using the formula: Pressure = Force / Area. Examples include hydraulic systems, where pressure is used to lift heavy objects, and scuba diving, where pressure increases with depth underwater.

• Pressure is a vector quantity

• Pressure decreases with depth in a fluid

• Pressure is the same at all points in a fluid

The ratio of the weight of all the air above you to your surface area

• fluid

• atmosphere

• atmospheric pressure

• buoyant force

What is buoyant force?

• An upward force exerted by fluids on an object.

• An downward force exerted by fluids on an object.

Identify the amount of pressure experienced by each swimmer:

a

b

Greater pressure

Lower pressure