Podcast
Questions and Answers
What is the role of synovial fluid in the joint?
What is the role of synovial fluid in the joint?
- To act as a lubricant and reduce friction (correct)
- To increase the friction between the joints
- To provide a torque on the joint
- To provide a normal force on the joint
What is the force of friction dependent on?
What is the force of friction dependent on?
- Both the coefficient of friction and the normal force (correct)
- Neither the coefficient of friction nor the normal force
- Only the coefficient of friction
- Only the normal force
What is the formula for the force of friction?
What is the formula for the force of friction?
- Ff = mg
- Ff = ma
- Ff = μN (correct)
- Ff = μv
What is the coefficient of friction between two ice surfaces in the given example?
What is the coefficient of friction between two ice surfaces in the given example?
What is the force of friction acting on the block of ice in the given example?
What is the force of friction acting on the block of ice in the given example?
What is the formula for the normal force on an object on a flat surface?
What is the formula for the normal force on an object on a flat surface?
What is the Newton's second law of motion?
What is the Newton's second law of motion?
What is the net force acting on the block of mass 2 kg in the example?
What is the net force acting on the block of mass 2 kg in the example?
What is the acceleration of the block of mass 2 kg in the example?
What is the acceleration of the block of mass 2 kg in the example?
What is one of the effects of acceleration on the body?
What is one of the effects of acceleration on the body?
What happens if the acceleration becomes large?
What happens if the acceleration becomes large?
What can happen to tissues if the forces are large?
What can happen to tissues if the forces are large?
What is the resonant frequency of an organ dependent on?
What is the resonant frequency of an organ dependent on?
What happens if an organ is vibrated vigorously at its resonant frequency?
What happens if an organ is vibrated vigorously at its resonant frequency?
What is the rankings of the four fundamental forces from weakest to strongest?
What is the rankings of the four fundamental forces from weakest to strongest?
Which forces are of importance in the study of forces affecting the human body?
Which forces are of importance in the study of forces affecting the human body?
What is the role of electrical forces in the human body?
What is the role of electrical forces in the human body?
How does the gravitational force affect the blood flow in the body?
How does the gravitational force affect the blood flow in the body?
What is the role of frictional forces in the human body?
What is the role of frictional forces in the human body?
What is the role of calcium in the bone formation?
What is the role of calcium in the bone formation?
What is the muscular force responsible for in the body?
What is the muscular force responsible for in the body?
What is the main factor that determines the speed at which small objects fall through a liquid?
What is the main factor that determines the speed at which small objects fall through a liquid?
What happens to the effective radius of red blood cells in some forms of disease such as rheumatic heart disease?
What happens to the effective radius of red blood cells in some forms of disease such as rheumatic heart disease?
What is the relationship between the retarding force Fd and terminal velocity V for a spherical object?
What is the relationship between the retarding force Fd and terminal velocity V for a spherical object?
What is the purpose of using a centrifuge in dynamics?
What is the purpose of using a centrifuge in dynamics?
What is the density of the solution in which sedimentation of small spherical objects occurs?
What is the density of the solution in which sedimentation of small spherical objects occurs?
What is the unit of measurement for the acceleration due to gravity?
What is the unit of measurement for the acceleration due to gravity?
What is the symbol for the viscosity of the liquid in Stokes' equation?
What is the symbol for the viscosity of the liquid in Stokes' equation?
What is the result of an increased sedimentation velocity in some forms of disease?
What is the result of an increased sedimentation velocity in some forms of disease?
What is the term for the tendency of suspended solids of different densities to separate when accelerated?
What is the term for the tendency of suspended solids of different densities to separate when accelerated?
The sedimentation velocity of small spherical objects increases when their effective radius decreases.
The sedimentation velocity of small spherical objects increases when their effective radius decreases.
Centrifuges can be used to decrease the acceleration due to gravity.
Centrifuges can be used to decrease the acceleration due to gravity.
The retarding force Fd is directly proportional to the terminal velocity V.
The retarding force Fd is directly proportional to the terminal velocity V.
The viscosity of a liquid has no effect on the sedimentation velocity of small objects.
The viscosity of a liquid has no effect on the sedimentation velocity of small objects.
The density of the solution has no effect on the sedimentation of small spherical objects.
The density of the solution has no effect on the sedimentation of small spherical objects.
The sedimentation velocity of small objects is independent of their size.
The sedimentation velocity of small objects is independent of their size.
The acceleration due to gravity is the only factor affecting the sedimentation velocity of small objects.
The acceleration due to gravity is the only factor affecting the sedimentation velocity of small objects.
The tendency of suspended solids of different densities to separate when accelerated is known as dynamics.
The tendency of suspended solids of different densities to separate when accelerated is known as dynamics.
The radius of the spherical object has no effect on the retarding force Fd.
The radius of the spherical object has no effect on the retarding force Fd.
The terminal velocity V is inversely proportional to the radius of the spherical object.
The terminal velocity V is inversely proportional to the radius of the spherical object.
