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Social Sciences
The study of human society and of individual relationships in and to society.
5,538 Questions
Difference between conventional and non conventional sources of energy?
There is no absolute hard and fast definition. But I would say coal, oil, and natural gas, and hydro are conventional. Wind, solar, tidal, and biomass non-conventional. I'm not sure about nuclear.
Explain how prebiotics and probiotics work?
Probiotics are supplements of bacteria that is good for the GI tract (so called "good bacteria"). A common formula of probiotics is called PB-8. There are many formulas of probiotics. Each formula has a different strain or strains of bacteria that is known to be "good." By "good" they mean that these bacteria are either helpful in digestion OR they cause the "bad" bacteria to be less in number.
What is the definition of water displacement?
If you were to submerge a cube that is 1MX1MX1M in water you would "displace" or move one cubic meter of water. The cube would be where water was, so it is said that the water was displaced. One measure of a ship is how much water is displaced when the ship floats. Something that is floating will displace its own weight in water.Water displacement moes the water so you can tell the volume of an object.
Also...
Displacement is a measure of mass as in a ship's displacement. A ship will displace the amount of water equal to it's mass or weight. The amount of water displaced, by volume, can vary depending on whether the ship is in salt water or fresh water. A ship will displace less water in the ocean than it will, let's say in a river. A gallon (US) of sea water weighs about 8.55lbs (3.88kg), while a gallon (US) weighs about 8.35lbs (3.79kg). If the same ship were in a river or lake of fresh water it would sit lower in the fresh water then it would in the ocean. Ocean's water, being heaver, is then more buoyant.
What is the scientific definition of energy?
Energy is the ability to do work or cause change. It comes in various forms such as kinetic, potential, thermal, chemical, and electromagnetic energy. Energy cannot be created or destroyed, only transformed from one form to another.
How are the processes of inferring and modelling useful to scientists?
A model is essentially an explanation supported by data. It can be visual,verbal, or mathematical scientist sometimes use models to generate new hypotheses or predictions.
An inference in a conclusion made on the basis of facts or premises rather than on direct observations. In science,inferences are often drawn from data gathered from a field study or experiment,considered together with previous knowledge.
Which type of mixture has an uneven distribution of particles?
A heterogeneous mixture has an uneven distribution of particles. In this type of mixture, the different substances are not uniformly mixed, making it easy to distinguish and separate the components. Examples include salad, cereal with milk, and a mixture of sand and gravel.
What is meant by the statement physics is an experimental science?
An experimental physicist also has hypotheses and theories, but they devise actual experiments to show these hypotheses are true (or not).
General Relativity is one example where it is shown true by both mathematics and by experiments. The latest experiment to show General Relativity is true is the satellite "Gravity Probe B", which orbited the earth (still is) for a couple of years gathering data on what's called "frame dragging" -- which is a prediction from General Relativity math that had not been shown by experiment (until now).
How does global warming damage the world?
(Another contributor wrote:)
In a lot of ways:
Rising sea level and losing the coastline, with intensely populated cities. Changing ecosystems, changing agriculture, losing crops because of drought, more extreme weather (hurricanes, tornadoes, etc), heat waves . And this is just the tip of the iceberg (except there won't be any more icebergs).
How do you do a SCIENCE folio?
To create a science folio, you can start by selecting a topic or experiment to investigate. Gather relevant information, data, and visual aids to support your findings. Organize your folio with sections such as introduction, methodology, results, discussion, and conclusion to present your work in a clear and structured manner. Make sure to follow any specific guidelines provided by your teacher or institution.
What is the brief definition of energy?
This is a difficult subject. A brief - and very informal - definition is that energy is "the ability to do work". Machines, humans, and other living beings, need energy to move, or to get things done. It is important to note that energy exists in many different forms (heat, movement, sound, light, chemical energy, and others), and that it can be converted from one form to another.
What is a insulator and conductor?
An insulator is a material that does not easily allow the flow of electricity, while a conductor is a material that allows electricity to flow through it easily. Insulators have high resistance to electrical flow, while conductors have low resistance. This property is due to the difference in the number of free electrons available for conducting electricity in each material.
The force that pulls objects toward each other is called?
That can be gravity, electrostatic force, magnetic force, or strong nuclear force.
As you've described it in the question, the only thing you can call it for sure is
"mutual force of attraction".
What are the rules in chemical safety disposal?
All chemicals have a MSDS (Material Safety Data Sheet). Refer to the MSDS of the chemical, the data sheet will instruct on proper disposal. Or, call the manufactuer of the chemical. They will instruct on proper disposal or refer you to the chemical MSDS.
The watt, a unit of power, was named after Scottish inventor James Watt but was actually created and defined by the International System of Units (SI) to honor his contributions to the development of the steam engine.
How to conserve flora and fauna?
we can protect the flora and fauna by protecting them.
We can conserve flora & fauna of a place by educating the local community of that area and also enacting the rules and regulation for this purpose.
How accurately can you tell the temperature of an object by touch?
Touch is subjective and can vary from person to person, making it unreliable for accurately determining the temperature of an object. Factors such as skin sensitivity, environmental conditions, and prior contact with different temperatures can influence how an object feels to the touch. For specific temperature measurements, it is best to use a thermometer.
Is tap water a mechanical mixture or a solution?
Unless you have some abnormal issues, the liquid flowing from your tap is (mainly) a solution. Mechanical mixtures can be separated by mechanical means (a sieve, magnet,etc.) Solutions can not.
Your tap water should consist of H2O (water), some dissolved minerals and metals (in solution), and some dissolved gasses (including the gasses forced into the water by the aerator on your faucet--this is why if you leave a glass of tap water out overnight bubbles will form on the sides; it's the dissolved gasses collecting on the sides of the glass.)
If you have any specific questions, feel free to ask me directly at truthispainful.com
No. It's EVERYTHING that was filtered out of your blood minus those substances reabsorbed by the kidney. Thus it changes every day.
A balloon rises because it is filled with a gas that is lighter than the surrounding air, typically helium or hot air. The lighter gas creates buoyant force, lifting the balloon off the ground.
Plasma is the liquid part of blood that carries nutrients, hormones, and waste products throughout the body. It also helps regulate body temperature and maintain blood pressure. Additionally, plasma plays a key role in the immune system by carrying antibodies and other proteins that help defend against infections.
What do magnets do in a scrap yard?
Magnets in a scrap yard are used to separate ferrous metals (such as iron and steel) from non-ferrous metals. When the magnet is turned on and passed over a pile of mixed metals, it attracts the ferrous materials while allowing the non-ferrous materials to remain behind for further processing or recycling.
Why does friction increase as speed increases?
Explained using the Big Idea Of Particles:the faster you go, the more air you have bashing into your surface.
Imagine the molecules comprising air were the size of basket-balls.
at walking speed, you'd only have 5 or 6 basket balls hitting you in the face every minute or so and they'd only hit you at walking pace. When you move up to running speed, you suddenly have 15 or so basket balls hitting you in the face every minute at running pace. Riding on a bicycle, you have between 30 and 40 basket balls hitting you in the face every minute at a very high speed.
So the faster you go, the more basket balls you have hitting you at a higher speed. These two factors multiply together to give the friction force which increases as a square factor of your speed, (i.e. increase speed by 2, you have 2x the basketballs hitting you 2x as fast which equals 2x2 = 4 times the friction force).
because the faster something is, the greater the friction is. like, here's an example. get your stubby little hand and start to rub it across the carpet. well don't just sit there actually do it you lazy homosapien! start to rub it softly, and then start to rub it all fast! as you can see, the faster you rub, the hotter your hand is, because of friction. but you weren't supposed to do it that hard and that's why your hand burns so badly.
What Does The Force Of Gravity Do?
The force of gravity is responsible for pulling objects towards each other. It creates the attractive force that keeps us grounded on Earth and governs the motion of celestial bodies in space. This force is determined by the mass of the objects and the distance between them.
What is the scientific definition of a compound?
A compound is a substance formed when two or more chemical elements are chemically bonded together in a fixed ratio by mass. It has a unique chemical structure and properties different from its constituent elements.
What is potential energy called that depends on height?
Gravitational potential energy - it depends on the distance from the centre of gravity, so on Earth it depends on the height above the Earth's surface
