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If the viscosity of a fluid decreases while all other factors remain constant, how will it affect the terminal velocity of an object falling through the fluid?
- a)The terminal velocity will decrease
- b)The terminal velocity will increase
- c)The terminal velocity will remain the same
- d)The terminal velocity will become zero
Correct answer is option 'B'. Can you explain this answer?
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If the viscosity of a fluid decreases while all other factors remain c...
Effect of Decreased Viscosity on Terminal Velocity of an Object Falling through a Fluid
When the viscosity of a fluid decreases while all other factors remain constant, the terminal velocity of an object falling through the fluid will increase. This can be understood by considering the factors that affect terminal velocity.
Terminal Velocity:
Terminal velocity is the constant velocity that a freely falling object eventually reaches when the resistance from the fluid through which it is falling equals the force of gravity acting on it. At terminal velocity, the net force on the object is zero, resulting in a constant velocity.
Viscosity:
Viscosity is a measure of a fluid's resistance to flow. It is a property that determines the internal frictional forces within a fluid as it flows. When the viscosity of a fluid decreases, it means that the fluid becomes less resistant to flow and flows more easily.
Factors Affecting Terminal Velocity:
Terminal velocity is determined by the balance between the gravitational force pulling the object downward and the resistance force exerted by the fluid. The resistance force is dependent on several factors, including the shape, size, and density of the object, as well as the viscosity of the fluid.
Explanation:
When the viscosity of a fluid decreases, the resistance force exerted by the fluid on the falling object decreases. This decrease in resistance force allows the object to fall more easily through the fluid, resulting in an increase in its terminal velocity.
Key Points:
- Terminal velocity is the constant velocity a falling object reaches when the resistance force equals the force of gravity.
- Viscosity is a measure of a fluid's resistance to flow.
- When the viscosity of a fluid decreases, the resistance force exerted by the fluid on the object decreases.
- With decreased viscosity, the object experiences less resistance and can fall more easily through the fluid.
- Consequently, the terminal velocity of the object increases.
Therefore, the correct answer is option 'B' - the terminal velocity will increase.
When the viscosity of a fluid decreases while all other factors remain constant, the terminal velocity of an object falling through the fluid will increase. This can be understood by considering the factors that affect terminal velocity.
Terminal Velocity:
Terminal velocity is the constant velocity that a freely falling object eventually reaches when the resistance from the fluid through which it is falling equals the force of gravity acting on it. At terminal velocity, the net force on the object is zero, resulting in a constant velocity.
Viscosity:
Viscosity is a measure of a fluid's resistance to flow. It is a property that determines the internal frictional forces within a fluid as it flows. When the viscosity of a fluid decreases, it means that the fluid becomes less resistant to flow and flows more easily.
Factors Affecting Terminal Velocity:
Terminal velocity is determined by the balance between the gravitational force pulling the object downward and the resistance force exerted by the fluid. The resistance force is dependent on several factors, including the shape, size, and density of the object, as well as the viscosity of the fluid.
Explanation:
When the viscosity of a fluid decreases, the resistance force exerted by the fluid on the falling object decreases. This decrease in resistance force allows the object to fall more easily through the fluid, resulting in an increase in its terminal velocity.
Key Points:
- Terminal velocity is the constant velocity a falling object reaches when the resistance force equals the force of gravity.
- Viscosity is a measure of a fluid's resistance to flow.
- When the viscosity of a fluid decreases, the resistance force exerted by the fluid on the object decreases.
- With decreased viscosity, the object experiences less resistance and can fall more easily through the fluid.
- Consequently, the terminal velocity of the object increases.
Therefore, the correct answer is option 'B' - the terminal velocity will increase.
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If the viscosity of a fluid decreases while all other factors remain c...
If the viscosity of a fluid decreases while all other factors remain constant, the terminal velocity of an object falling through the fluid will increase.
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If the viscosity of a fluid decreases while all other factors remain constant, how will it affect the terminal velocity of an object falling through the fluid?a)The terminal velocity will decreaseb)The terminal velocity will increasec)The terminal velocity will remain the samed)The terminal velocity will become zeroCorrect answer is option 'B'. Can you explain this answer?
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