0
Every material object behaves as if it's lighter in water than it is in air. We know
that, on account of a recent discovery that turns out to be very useful in many
different situations:
"An object immersed in a fluid is buoyed up by a force equal to
the weight of the displaced fluid." (Archimedes, around 230 BC)
That means that if an object in water pushes 10 pounds of water out of its way,
then there's automatically 10 pounds of force holding the object up.
Knowing this, our engineers, inventors, and other artisans and craftsmen are able
to fashion structures capable of carrying large, heavy loads on top of the water,
structures which they refer to as "ships". At the same time, other innovators with
more adventurous spirits have constructed devices which are able to displace
quantities of air whose weight is greater than their own, and in that way to
float in air. Those devices include blimps and zeppelins, as well as helium and
hot-air balloons.
A 5-gallon bucket of anything, when completely submerged in water, is buoyed up
by the weight of 5 gallons of water ... almost 42 pounds ... and it will feel almost
42 pounds lighter than it feels when out of water.
What else can I help you with?
Why is a bucket of water lighter under water?
It actually isn't lighter, the mass of the bucket itself remains the same. However the buoyancy of the object, and the friction of water being higher than air, all work together counteract gravity. This makes the bucket appear to be lighter.
Will helium float in water?
Yes, helium will float in water. Helium is lighter than air, so it will also be lighter than water and rise to the surface when submerged in water.
Are objects lighter in water than in air?
They are not really lighter, they only seem lighter. Objects weigh the same in water as in air, but in the water, there is an additional force, of the water pushing the object up.
Ice is heavier than water or not?
Ice is lighter (less dense) than water. Which is why ice can float on the surface of water.
Why does diesel float on water?
Diesel is less dense than water, which causes it to float on the surface. This is because diesel is a hydrocarbon-based liquid that is lighter than water, causing it to be less likely to mix or sink when in contact with water.
Why is a bucket of water lighter under water?
It actually isn't lighter, the mass of the bucket itself remains the same. However the buoyancy of the object, and the friction of water being higher than air, all work together counteract gravity. This makes the bucket appear to be lighter.
Is a bucket of snow is heavier or a bucket of water?
A bucket of water is heavier than a bucket of snow when both are of the same size. This is because water is denser than snow; snow contains a significant amount of air, which makes it lighter. Thus, even a full bucket of snow will weigh less than a full bucket of water.
Why does the bucket go up after you lower it?
A reasonable explanation as to why the bucket would go up after you lower it is because upon emptying the bucket it becomes lighter. Provided that there is an object heavier than the bucket on the other side of the pulley, the lighter object will always rise.
Why does it take longer to heat a bucket of water than a cup of water?
Because there is more water in a bucket than in a cup, and more energy has to be put into the bucket of water than the little cup of water to bring them to the same temperature.
What can hold a greater volume of water than a mug?
a bucket...
What is the effect of placing an object with greater density than water in a bucket of water?
what is the effect of placing an object with a greater density than water in a bucket of water
Are mangoes lighter than water?
Yes, mangoes are lighter than water. The density of mangoes is lower than the density of water, which means they will float in water.
What gets hotter a bucket of water a empty bucket?
The bucket full of water because liquids heat up faster than solids.
Is Saturn lighter or heavier than water?
Saturn is much lighter than water. It is a gas giant made primarily of hydrogen and helium, with a density lower than that of water.
Is frozen water 9 pecent lighter than water?
Yes, Frozen water is 9% Lighter than actual water .
Do plastic float on water?
depends if the plastic is heavier or lighter than water and if its hold air which is lighter than water
Which is heavier an bucket of water or bucket of tennis balls?
A bucket of water is heavier than a bucket of tennis balls. This is because water has a higher density than tennis balls, meaning there is more mass packed into a given volume. The weight of an object is determined by both its mass and the gravitational force acting on it, so the bucket of water will weigh more than the bucket of tennis balls when measured on a scale.
