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Questions and Answers
What is the net downward force responsible for the initial increase in velocity of an object moving through a viscous medium?
What is the net downward force responsible for the initial increase in velocity of an object moving through a viscous medium?
- Weight of the object
- Buoyant force
- Total upward force (correct)
- Viscous force
When a spherical object reaches its terminal velocity, what is true about the total downward force acting on it?
When a spherical object reaches its terminal velocity, what is true about the total downward force acting on it?
- It does not affect the object
- It is smaller than the total upward force
- It is equal to the total upward force (correct)
- It is greater than the total upward force
In the equation for terminal velocity, what does 'Fv' represent?
In the equation for terminal velocity, what does 'Fv' represent?
- Buoyant force
- Viscous force (correct)
- Total upward force
- Weight of the object
What happens to the downward velocity of an object once it reaches its terminal velocity?
What happens to the downward velocity of an object once it reaches its terminal velocity?
Which force increases with the increase in velocity when an object moves through a viscous medium?
Which force increases with the increase in velocity when an object moves through a viscous medium?
'Net downward force given by f = Fg - (Fv+ Fu)' refers to which stage of an object's motion?
'Net downward force given by f = Fg - (Fv+ Fu)' refers to which stage of an object's motion?
What is the force due to atmospheric pressure just below the surface of a liquid?
What is the force due to atmospheric pressure just below the surface of a liquid?
In a concave liquid surface, where is the greater pressure developed?
In a concave liquid surface, where is the greater pressure developed?
What is the total downward force acting on a molecule at point B just below the surface of a liquid?
What is the total downward force acting on a molecule at point B just below the surface of a liquid?
Which force contributes in deciding the pressure at a point just below the surface of a liquid?
Which force contributes in deciding the pressure at a point just below the surface of a liquid?
In a convex liquid surface, where is the greater pressure developed?
In a convex liquid surface, where is the greater pressure developed?
Which force is responsible for developing greater pressure at point B inside a liquid on the concave side of a meniscus?
Which force is responsible for developing greater pressure at point B inside a liquid on the concave side of a meniscus?
At which positions in the vertical circular motion is the force due to tension the only force towards the centre?
At which positions in the vertical circular motion is the force due to tension the only force towards the centre?
What is the significance of the centripetal force in vertical circular motion?
What is the significance of the centripetal force in vertical circular motion?
What is used to change the speed of an object during vertical circular motion?
What is used to change the speed of an object during vertical circular motion?
What is the total upward force in terms of tension (T) and weight (mg) during vertical circular motion?
What is the total upward force in terms of tension (T) and weight (mg) during vertical circular motion?
Which equation represents the terminal velocity in the context of the provided text?
Which equation represents the terminal velocity in the context of the provided text?
What is used at positions C and D in vertical circular motion to change the speed of the object?
What is used at positions C and D in vertical circular motion to change the speed of the object?
