It's the tendency of an object to float, or the upward pressure of fluid in an object
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What is Buoyancy - UCSB Science Line - University of California ...  Buoyancy is an upward force caused by the pressure from a displaced fluid. It is the force that causes wood and boats to float in water and the reason why objects feel ... any kind of fluid, a liquid or a gas (in this case though it's easier to picture a liquid, ... This means that you will have a tendency to rise (float) to the surface if...
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Buoyancy - body, used, water, gas, air, substance, principle  Buoyancy is the tendency of an object to float in a fluid, such as air or water. ... the cooler the temperature of the liquid, the denser the solution and the greater its buoyancy. ... The second force is the upward pressure of the water on the block.
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When a body is immersed in a fluid, how is upthrust caused and why ...  Buoyant force does not have any fixed direction. (Refer to the submarine's working to see ... When an object is immersed in a fluid, its weight (force caused by the gravity) will ... is immersed, its base will be acted upon by the upward pressure of fluid. ... The object floats (in partial or complete submersion) if the buoyant force is...
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Predict Whether an Object Will Float or Sink: Understanding Density ...  Apr 7, 2015 ... Buoyancy is the ability or tendency of an object to float in a fluid: a liquid or a gas. ... If you put an object underwater, there will be more pressure on the bottom of the object ... And this creates an upwards force. ... So if you weigh an object to get its mass, measure an object to calculate its volume (its size) and...
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Buoyancy - Wikipedia  In science, buoyancy is an upward force exerted by a fluid that opposes the weight of an immersed object. In a column of fluid, pressure increases with depth as a result of the weight of ... This pressure difference results in a net upwards force on the object. ..... An object whose weight exceeds its buoyancy tends to sink.
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What Is Air Resistance? - Universe Today  May 17, 2016 ... By definition, air resistance describes the forces that are in opposition ... Wave drag (compressibility drag) is created by the presence of a body...
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General Chemistry Online: Glossary: Matter  in which solid particles or liquid droplets are suspended in a gas. ... composed of tiny particles suspended in another material. ... The process of increasing the amount of substance in a given amount of ... The mixing of two substances caused by random molecular motions. .... an object possesses by virtue of its motion.
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Falling Bodies  The Physics Hypertextbook  Your object was accelerating because gravity was pulling it down. ... Light objects accelerate more slowly than heavy objects only when forces other than ... the variation of speed in air between balls of gold, lead, copper, porphyry, and ... of speed, why should I not believe that such increases take place in a manner which is...
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Gas Laws  Conversely, if the volume of the container is increased, the pressure that gas ... a gas is cooled, however, remember its volume decreases, so the density increases. .... Just as you feel it when you come back down a mountain, say Mt. Hood. ... Why did Boyle's Law only hold true when the temperature was held constant?
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Plop - definition of plop by The Free Dictionary  To fall with a sound like that of an object falling into water without splashing. ... the characteristic sound made by an object dropping into water without a splash .... the sound of a small object falling into water etc. ... But a far larger pile sails from the screen, falls short of its target, and lands with an unceremonious plop on your...
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Floating Paper Clip Experiment | Education.com  Dec 9, 2013 ... This is made possible by the cohesion of water molecules on the surface of ... push the paper towel down into the water, away from the paperclip. ... Surface tension is the attraction of like particles to one another on a ... The paperclip is less likely to float in the water with detergent because ... Sink or Float?
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Your Weight on Other Planets - The Solar System on Sea and Sky  Page 1 of 1 ... The mass of an object is a measure of how much matter it contains. ... More massive objects have a stronger pull than less massive objects. ... and its surface is so far from its center, that the pull of gravity is weaker at its surface.
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What is a measure of inertia? | Reference.com  The mass of an object measures the object's inertia. Inertia is the object's resistance to a change in motion. The greater the mass of an object, the greater will be...
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Get Into STEM Lesson Plans - Center for Energy Workforce ...  Mar 29, 2006 ... The water weighs less than 1 pound, but the air is pushing with 15 pounds for every ...... bouncing balls can be made from a variety of materials.
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Lift (force) - Wikipedia  A fluid flowing past the surface of a body exerts a force on it. Lift is the component of this force that is perpendicular to the oncoming flow direction. It contrasts with the drag force, which is the component of the surface force parallel to the flow direction. If the fluid is air, the force is called an aerodynamic force. .... For conventional wings that are flat on the bottom and curved on top this...
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Spirit level - Wikipedia  A spirit level, bubble level or simply a level is an instrument designed to indicate whether a surface is horizontal (level) or vertical (plumb). Different types of spirit levels may be used by carpenters, stonemasons, ... An extension of the spirit level is the bull's eye level: a circular, flat-bottomed device with the liquid under a...
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SCI ECH - Illinois DNR  Light travels slower in a liquid or gas than it does in vacuum . .... Brine Shrimp Ballet demonstrates that light has an effect not only on vision, ..... Objective: Students will relate the swim bladder in most fish and the ballast ..... Discuss examples of substances that float, such as wood, rubber inner tubes filled with air, and oil .
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Classical Mechanics - Ask the Physicist!  At such a large speed, air drag has an enormous effect on ball. ... There is an earlier question similar to yours except the object is rising instead of sinking. .... So, if you start it sliding and not rolling, it will begin spinning about its center of ... until eventually F=0 and the ball would go down with a constant speed called the...
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Final Exam with Answers - How Things Work  Dec 9, 1996 ... This air resistance explains why you have to keep pedaling to maintain your constant ... (C) both an upward force and the downward force of its weight as it rises. ... You're trying to tip a huge boulder off a cliff and onto the poor bird. .... (C) cause it to shrink unevenly so that internal forces will tear it apart.
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Inertia dictionary definition | inertia defined - YourDictionary  The more inertia an object has, the less the object will change its motion ... Physics The tendency of a body at rest to remain at rest or of a body in straight line motion to ... of a body that resists any change to its uniform motion; equivalent to its mass. ... From Latin inertia (lack of art or skill, inactivity, indolence), from iners...
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Inertia - Wikipedia  Inertia is the resistance of any physical object to any change in its state of motion; this includes changes to its speed, direction or state of rest. It is the tendency of objects to keep moving in a straight line at constant velocity. ... In common usage, the term "inertia" may refer to an object's "amount of resistance to change in...