Asked in PhysicsChemistry
Is fat less dense than water?
Asked in Physics
Why do fat people float in water better than thin ones?
Asked in History of Science, Earth Sciences
Does a fat person have more density than a skinny person?
Asked in Weight and Mass
Why does your weight go up when you exercise?
Asked in Science
Why are some people not able to float on water?
An object will float in a substance if it is less dense that it, and if they are more they will sink. Water is 1g/mL, and most people are quite similar to this (so close that usually if someone in water breathed out, they sink, breath in, they float). What makes the difference is not how much someone weighs, but their density, which depends on how much muscle and fat they have. Fat is actually less dense than water - so having more fat will actually make a person more bouoyant. Muscle is more dense than water so a person having more muscle will sink. So a person weighing 240 pounds could float while a 160 pound person could sink - it depends on what their body is like. Because of their density: People with a lower body fat percentage (fat is less dense than water) sometimes cannot stay on the surface of the water without motion to propell themselves upwards, although most people *do* remain at the surface if they relax and lean back. Bone is considerably more dense than water, muscle is a little more dense, and fat less dense. If the weight of water you displace is less than your own weight, you will sink.
What weighs more a teaspoon of water or a teaspoon of pudding?
Asked in Fat Content
Why the denser milk have more fat content than less dense milk?
Skim milk is about 90% water. Milk fat, which is in globules suspended in the milk, gives the milk a thicker, or denser, compositon than non-fat milk. Because milk fat has a lower density than water, the term 'dense' in this case refers to the thickness of the milk and should not be confused with the 'density' of the liquid.
Asked in Physics
Do fat people float better than skinny people?
It would depend if it is really fat or muscle. If it is fat, then it is actually oil, and oil is less dense than water and floats. (Just try pooring olive oil in a glass). However, muscle, bone, and other tissues are either denser than water or not less dense enough to have much boyancy. Since it's really density, not weight, that matters, it also makes a difference how much air is in the floater's lungs. Lastly, it depends on the water. In the salt-rich Dead Sea, for example, basically everyone can float. But in some areas with desolved gas, such as the Bermuda Triangle, sudden changes in density had been known to even sink ships. In a nutshell: You float if you are less dense (density=weight/volume) than water, or another fluid. Fat will make you less dense, muscle is hevier then fat and will either not help or make you sink more.
Asked in Science, Mayonnaise
Why does full fat mayonnaise float and low fat mayonnaise sink?
Fat has a lower density than water does. A solid with a higher fat content will have a lower density, and will be more likely to float in water. Full fat mayonnaise floats because it has less density than water (1g/cm*3*) and low fat mayonnaise sinks because it is more dense than water and I think it's because of the differ in the ingredients.
Asked in Intestines
What is the difference between poop that floats and poop that sinks?
The fecal matter that floats is less dense than water, and the fecal matter that sinks is more dense than water. Also, feces that floats might mean that you maintain good fiber! Which is excellent for your colon to be clean! However, fat is also lighter than water, so floating feces could mean you have a lot of fat in your diet.
Asked in Dieting and Weight Loss, Exercise
How does Muscle weight compare with the weight of fat?
A pound of fat weighs the same as a pound of muscle. There is no difference. However, they do differ in density. Muscle tissue tends to be more dense than fat tissue because it has more water. This means that a muscular person would generally displace less water (have less volume) than a fat person of the same weight, and that a muscular person would weigh more than a fat person who displaces the same amount of water (equal volume).
Asked in Physics, Marine , Body Mass Index
Why do you float when you lay on your back in the water?
This happens because your body is less dense than water. It is the very same reason why a helium filled balloon will float upward in air. Helium is less dense than air, and so the more dense air settles under the balloon and moves it up; the balloon is 'seeking' the surface of the air mass that it is floating in. Another way of thinking about this: If you could measure out the amount of water that weighs exactly the same as your body weight, you will find that the volume of that water is less than the volume of your body. Same weight in a smaller volume-- that means the water is more dense than your body. The density of water is really called specific gravity, but the concept is the same. __________________ NOTE: This turns out to be very useful as a way of measuring over-all body fat, or the Body Mass Index. Some people can be standing in 3 or 4 feet of water, exhale the air from their lungs as completely as possible, and have time to float down to the bottom of the pool and lay there for a moment before coming up for air. Others cannot do this, no matter how hard they exhale. The difference is the amount of body fat. body fat is less dense than muscle, so it works to keep the body at or near the surface.
Asked in Physics, Chemistry, Snow and Ice
Is water less dense than the human body?
The average human body has a density of 1.010 kg/litre The density of pure water is exactly 1 kg/litre The density of sea water is 1.025 kg/litre So the average human is denser than fresh water but less dense than seawater. There are significant differences in density between people, women tend to be less dense than men, muscular people tend to be more dense, fat people tend to be less dense. We can also reduce our density by breathing in deeply. Incidentally dead bodies tend to float after a few days due to the build up of decomposition gases within the body reducing its density. Sources Density of human body - http://en.wikipedia.org/wiki/Orders_of_magnitude_(density) Density of sea water - http://en.wikipedia.org/wiki/Sea_water
Asked in Food Science
Why do chicken's fats float on the surface of tinola soup?
Asked in Dieting and Weight Loss, Exercise
Which one takes up more space a pound of fat or a pound of muscle?
Asked in Milk
Is milk denser than water?
Milk has a density of between 1027 and 1037 kg/m3, at 20 degrees Celsius, depending on the type of milk. Water has a density of about 1000 kg/m3, at 20 degrees Celsius. Therefore, milk is more dense than water. However, heavy whipping cream is less dense than water, due to the added milk fat. Heavy whipping cream is about 994 kg/m3.