Viscosity of Liquid

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What is the SI unit of viscosity?

Newton-second per square meter [N.s/m²]

Kilogram per meter-second [Kg/m.s]

Pascal second [Pa s] (correct)

Dyne-second per square centimeter [dyne s/cm²]

How is viscosity of a liquid typically measured?

By adjusting the density of the liquid

By measuring the temperature of the liquid

By using a stop-watch to measure the time it takes for a sphere to fall through the liquid (correct)

By observing the color change of the liquid

What is the formula used to deduce the viscosity of a liquid?

$rac{4}{3}πr³$

$rac{d}{2}$

$(ς - ρ) gV$

$6πηrv = ς gV$ (correct)

What does 'h' represent in the experiment procedure?

Distance between rubber bands Signup and view all the answers

What is the name given to 1 dyne second per square centimeter?

Poise [P] Signup and view all the answers

What does the slope in Equation (1) represent?

Terminal velocity Signup and view all the answers

What does viscosity describe in a fluid?

The fluid's resistance to flow Signup and view all the answers

Which physical quantity describes the viscous drag force on a sphere falling through a liquid?

Stokes' law Signup and view all the answers

What does the formula R = 6πηrv represent in the context of viscosity?

Viscous drag force Signup and view all the answers

What happens to the sphere falling in a fluid when weight goes down, buoyancy goes up, and drag goes up?

The sphere falls with constant velocity Signup and view all the answers

Which formula represents the buoyant force on a sphere immersed in a fluid?

B = ρ g V displaced Signup and view all the answers

What is the property that determines how fast or slow a liquid can flow?

Viscosity Signup and view all the answers

The viscosity of a fluid describes its resistance to flow.

True Signup and view all the answers

The formula R = 6πηrv represents the buoyant force on a sphere immersed in a fluid.

False Signup and view all the answers

The weight of an object in a fluid increases when buoyancy increases.

False Signup and view all the answers

The velocity of a sphere falling through a fluid eventually becomes constant.

True Signup and view all the answers

The buoyant force on a sphere immersed in a fluid is described by the formula B = ρ g V displaced.

True Signup and view all the answers

The SI unit of viscosity is 1 dyne second per square centimeter.

False Signup and view all the answers

The SI unit of viscosity is the poise [P].

False Signup and view all the answers

The formula for viscosity in the context of the given experiment is 6πηrv = (ς - ρ) gV.

True Signup and view all the answers

Terminal velocity is calculated by plotting a graph with time (sec) on the y-axis and distance (cm) on the x-axis.

False Signup and view all the answers

The density of the sphere can be represented using the symbol 'ς' in the equation for viscosity.

True Signup and view all the answers

The formula V= $4/3 imes πr^3$ represents the volume of the sphere used in the experiment.

True Signup and view all the answers

The viscosity of a liquid can be determined by calculating the terminal velocity of a sphere falling through that liquid.

True Signup and view all the answers

The mathematical expression for the viscous drag force on a sphere falling through a liquid is given by the law Stokes R α ηrv.

True Signup and view all the answers

The formula for the buoyant force on a sphere immersed in a fluid is R = 6πηrv.

False Signup and view all the answers

The weight of an object submerged in a fluid can be calculated using the formula W = mg = ς g V object.

False Signup and view all the answers

The velocity of a sphere falling in a fluid eventually becomes constant due to the decrease in drag and increase in weight.

False Signup and view all the answers

The formula V= $4/3 \times πr^3$ represents the volume of the small sphere used in the experiment.

True Signup and view all the answers

Viscosity is the quantity that describes a fluid's tendency to accelerate freely without any resistance.

False Signup and view all the answers

The SI unit of viscosity, pascal second [Pa s], is equivalent to dyne second per square centimeter [dyne s/cm²].

True Signup and view all the answers

The formula for calculating viscosity in the given experiment is 6πηrv = ς gV.

False Signup and view all the answers

The symbol 'ς' in the equation for viscosity represents the density of the liquid.

False Signup and view all the answers

Increasing buoyancy leads to a decrease in the weight of an object immersed in a fluid.

True Signup and view all the answers

The formula V = $4/3 πr^3$ represents the volume of the sphere used in the experiment.

True Signup and view all the answers

Terminal velocity is calculated by plotting a graph with distance (cm) on the y-axis and time (sec) on the x-axis.

False Signup and view all the answers

Viscosity of Liquid

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Questions and Answers

What is the SI unit of viscosity?

How is viscosity of a liquid typically measured?

What is the formula used to deduce the viscosity of a liquid?

What does 'h' represent in the experiment procedure?

What is the name given to 1 dyne second per square centimeter?

What does the slope in Equation (1) represent?

What does viscosity describe in a fluid?

Which physical quantity describes the viscous drag force on a sphere falling through a liquid?

What does the formula R = 6πηrv represent in the context of viscosity?

What happens to the sphere falling in a fluid when weight goes down, buoyancy goes up, and drag goes up?

Which formula represents the buoyant force on a sphere immersed in a fluid?

What is the property that determines how fast or slow a liquid can flow?

The viscosity of a fluid describes its resistance to flow.

The formula R = 6πηrv represents the buoyant force on a sphere immersed in a fluid.

The weight of an object in a fluid increases when buoyancy increases.

The velocity of a sphere falling through a fluid eventually becomes constant.

The buoyant force on a sphere immersed in a fluid is described by the formula B = ρ g V displaced.

The SI unit of viscosity is 1 dyne second per square centimeter.

The SI unit of viscosity is the poise [P].

The formula for viscosity in the context of the given experiment is 6πηrv = (ς - ρ) gV.

Terminal velocity is calculated by plotting a graph with time (sec) on the y-axis and distance (cm) on the x-axis.

The density of the sphere can be represented using the symbol 'ς' in the equation for viscosity.

The formula V= $4/3 imes πr^3$ represents the volume of the sphere used in the experiment.

The viscosity of a liquid can be determined by calculating the terminal velocity of a sphere falling through that liquid.

The mathematical expression for the viscous drag force on a sphere falling through a liquid is given by the law Stokes R α ηrv.

The formula for the buoyant force on a sphere immersed in a fluid is R = 6πηrv.

The weight of an object submerged in a fluid can be calculated using the formula W = mg = ς g V object.

The velocity of a sphere falling in a fluid eventually becomes constant due to the decrease in drag and increase in weight.

The formula V= $4/3 \times πr^3$ represents the volume of the small sphere used in the experiment.

Viscosity is the quantity that describes a fluid's tendency to accelerate freely without any resistance.

The SI unit of viscosity, pascal second [Pa s], is equivalent to dyne second per square centimeter [dyne s/cm²].

The formula for calculating viscosity in the given experiment is 6πηrv = ς gV.

The symbol 'ς' in the equation for viscosity represents the density of the liquid.

Increasing buoyancy leads to a decrease in the weight of an object immersed in a fluid.

The formula V = $4/3 πr^3$ represents the volume of the sphere used in the experiment.

Terminal velocity is calculated by plotting a graph with distance (cm) on the y-axis and time (sec) on the x-axis.

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