Podcast
Questions and Answers
What is the SI unit of viscosity?
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?
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?
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?
What does 'h' represent in the experiment procedure?
What is the name given to 1 dyne second per square centimeter?
What is the name given to 1 dyne second per square centimeter?
What does the slope in Equation (1) represent?
What does the slope in Equation (1) represent?
What does viscosity describe in a fluid?
What does viscosity describe in a fluid?
Which physical quantity describes the viscous drag force on a sphere falling through a liquid?
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 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?
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?
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?
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 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 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 weight of an object in a fluid increases when buoyancy increases.
The velocity of a sphere falling through a fluid eventually becomes constant.
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 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 1 dyne second per square centimeter.
The SI unit of viscosity is the poise [P].
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.
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.
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 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 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 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 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 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 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 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.
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.
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 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 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.
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.
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.
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.
Terminal velocity is calculated by plotting a graph with distance (cm) on the y-axis and time (sec) on the x-axis.
