Basic Physics Fluid Mechanics

Which state of matter has a definite volume but not a definite shape?

• Gas

• Solid

• Liquid

• Plasma

What is the unit of pressure?

• Newton

• Watt

• Pascal

• Joule

What is the definition of density?

• Energy per unit volume

• Force per unit area

• Mass per unit volume

• Volume per unit mass

Which type of stress do fluids not sustain?

• Bending stresses

• Compressive stresses

• Tensile stresses

• Shearing stresses

What is the direction of the force producing pressure in fluids?

• Parallel to the area

• Perpendicular to the area

• Tangential to the area

• Opposite to the area

What is the formula for pressure in fluids?

• P = F + A

• P = F x A

• P = F/A

• P = F - A

What is the density of a substance defined as?

• Force per unit volume

• Mass per unit area

• Volume per unit mass

• Mass per unit volume

What is the variation of pressure with depth in fluids?

• Inverse

• Constant

• Exponential

• Linear

What is the pressure at a depth h below a point in a liquid?

• P = P0 + ρgh

• P = P0 - ρgh

• P = P0 / ρgh

• P = P0 x ρgh

What is the atmospheric pressure value in Pa?

• 1.013 Pa

• 1.00 x 10^5 Pa

• 1.013 x 10^5 Pa

• 1.00 Pa