Mechanical Engineering Exam > Mechanical Engineering Videos > Fluid Mechanics for Mechanical Engineering > Fun Video: What is Buoyancy?
Fun Video: What is Buoyancy? Video Lecture | Fluid Mechanics for Mechanical Engineering
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FAQs on Fun Video: What is Buoyancy? Video Lecture - Fluid Mechanics for Mechanical Engineering
| 1. What is buoyancy and how does it work? |  |
Ans. Buoyancy is the upward force exerted by a fluid on an object immersed in it. It occurs due to the difference in pressure between the top and bottom surfaces of the object. This force is equal to the weight of the fluid displaced by the object, following Archimedes' principle.
| 2. How is buoyancy related to the weight of an object? | |
Ans. Buoyancy is directly related to the weight of an object. If the weight of an object is less than the weight of the fluid it displaces, the object will experience an upward buoyant force greater than its weight and float. If the weight of the object is greater, it will sink.
| 3. Can an object be buoyant in a gas rather than a liquid? | |
Ans. Yes, buoyancy can also occur in gases. Similar to liquids, gases exert an upward force on objects immersed in them. For example, hot air balloons rely on buoyancy in the gas (hot air) to lift the balloon and its payload.
| 4. What factors affect the buoyant force on an object? | |
Ans. The buoyant force depends on several factors, including the density of the fluid, the volume of the fluid displaced by the object, and the acceleration due to gravity. These factors collectively determine the magnitude of the buoyant force acting on the object.
| 5. How does the shape of an object affect its buoyancy? | |
Ans. The shape of an object plays a role in determining its buoyancy. Objects with larger volumes displace more fluid and experience a greater buoyant force. Additionally, the shape can affect how the fluid flows around the object, altering the distribution of pressure and hence the buoyant force.
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Nov 15, 2024 Last updated |
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