How does an object's size affect it's velocity in sinking?
i would of thought shape would be more of a variable than weight, because the water needs to be displaced for the ofject to sink. The larger the surface area of the object, the more water needs to be displaced, and this can take time, therefore making the object sink slower
How does the matter of an object affect its floating and sinking?
Density.... if the molecules of an object are densely packed...it will sink. if the molecules or atoms are uniform and not densely packed it will float.... like ice for example...
Why is the apparent weight of a floating object zero?
I will try to explain the concept with some math equations.Apparent weight is calculated asApp. weight=weight of Body -Buoyancy forcewhere,Weight of body =mass of body*gravitational forceBuoyancy force = weight of fluid displaced.Now the cases…1)Floating BodyHere since the weight of body = Buoyancy force, the body is floating & apparent weight equals to zero.2) Sink bodyHere the term F implies the apparent weight.which can be calculated by above formula.Correct if any.Hope it helps…Image source :GoogleThanks…
Floating on different densities.?
(a) Rank the densities according to the magnitude of the buoyant force on the penguin, greatest first. if penguin is floating (without sinking) , the the amount of buoyant force that let him doing that is the same in every instance (just what needed for balancing its weight)..what changes is the amount of water to displace, i.e. penguin immersed volume !!!...then : 1.10 ρ 1.00 ρ 0.95 ρ (b) Rank the densities according to the amount of fluid displaced by the penguin, greatest first. 0.95 ρ 1.00 ρ 1.10 ρ The lower the fluid density, the greater the amount of fluid to be displaced for getting the same buoyant thrust
Is Archimedes' principle always true (e.g., sinking, floating objects or when the weight of an object=buoyancy, etc.)?
All objects follow the Archimedes principle.Sinking: An object sinks when the Buoyant force experienced by it is < it's weight.In case of floating objects weight is less than Buoyant force/weight of fluid displaced.Weight of object = buoyancy : the object floats.The reason it is always true is simple:Object is pulled down by gravity , but due to Newton's third law, the object experiences an opposite force exerted by water. Whether the object floats or not depends on the amount (volume) of water it displaces.
Define density. How is it related to floating and sinking in water?
Take a given volume and change its weight and then you will have changed its density. The greater the weight in the same volume, the greater the density. A cup of iron will weigh more than a cup of water and thus will be more dense. Objects that are more dense than water will not float in that water (adding salt to water increases its density and so becomes more bouyant). Of course if the object is shaped to float (a bowl or a cruise ship for example) then it can have a greater density. In such a case, the water displaced by the floating object will be equal in weight to the floating object (Archimedes' Principle).
Does mass affect the speed at which an object sinks in water?
Original question: Do objects with different masses sink at different speeds?Yes.It’s because while an object is in water, it has two forces acting on it.The first one is gravity, directed downwards, expressed as [math] F_1 = m_og [/math], where [math] m_o [/math] is the mass of the object.The second one is the buyoant force, directed upwards, expressed as [math] F_2 = m_wg[/math], where [math] m_w [/math] is the mass of water displaced by the object.The speed of sinking is determined by acceleration, which can be calculated as: [math] a = \frac{F_2 - F_1}{m_o} = \frac{(m_o - m_w)g}{m_o} = (1-\frac{m_w}{m_o})g [/math]The mass of displaced water is dependent upon volume and not mass of the object, so we can conclude that the formula contains a non-redundant [math] m_o [/math]. This means that the speed of sinking is indeed dependent on mass.
How does density affect an object’s ability to float in different fluids?
Objects denser than the fluid will sink, whereas objects less dense than the fluid will float (they will sink to a point where they have displaced a volume of fluid which weighs as much as the object weighs). I didn't do the experiment, so I can't tell you what happened. #1)But I bet the water sank below the oil, so which one is denser? #3) The fluid on the bottom is the most dense, the fluid in the middle is intermediate, and the fluid on the top is the least dense. #4) Wherever the item ended up, it was less dense than the fluids below it and more dense than the fluids above it. But surely you did to do this experiment yourself and observe the behaviour of the fluids, right? Well, you have to anyway to figure out where "your object" was.
Object that weighs 340N floats on a lake. Whats the weight of the displaced water? Whats the buoyant force I know the answer is 340 but why?
The object is floating, therefor the buoyancy force is equal to the weight of the object (otherwise it would sink). The buoyancy force = the weight of fluid displaced = weight of object = 340N. The immersion depth does not affect this- it only affects the volume of fluid diplaced