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What is gravitational potential energy?

Gravitational potential energy is the amount of energy present in an object that is placed in a gravitational field. Depending on various factors such as the pull of gravity itself and the mass of the object, its gravitational potential energy will change along with its position in the presence of gravity. Placing an object above […]

What is anti-matter?

Anti-matter refers to material that has the opposite properties to matter with the latter being composed of atoms and various particles with corresponding charges. Anti-matter on the other hand also have similar components but have the opposite charge. The electrons in matter have negative charge while the protons have positive charge. In anti-matter, the atom […]

What is Bernoulli’s principle?

Bernoulli’s principle refers to a law in physics that once the speed of a liquid or gas increases, the corresponding pressure also decreases. With this principle, fluids or gas particles for example are said to have a faster pace as long as the pressure within is also lowered. This particular law or principle was discovered […]

What is Force?

Force refers to interactions that result to change in motion of any given object. The interactions may either be physical in nature or purely non-physical. A force that results from interactions that are not physical in nature is referred to as action-at-a-distance. Such include magnetic, electrical and magnetic force. Forces that result from interactions that […]

What is Area?

Area refers to a quantity that shows the extent of two dimensional shapes or figures on a plane. Surface area is the depiction of two dimensional surfaces of an object that has three dimensions. Area may be said to be the quantity of material that has a specified thickness that is necessary to develop a […]

What is Conduction?

Conduction is a term used to describe the process of transferring heat from point to another using a substance. The speed at which heat passes through a substance differs from one substance to another. Metallic substances are considered to be good conductors of heat because the speed at which heat is transmitted through them is […]

What is a Factor Tree?

A factor tree is a method of generating the prime factorization of a regular number. The primary step in developing a factor tree is to discover a couple of elements whose item is the number that we are calculating. These two components are the first expanding in the factor tree. There are regularly a few […]

What is LCM?

LCM is an acronym for Least Common Multiple or Lowest Common Multiple. It is an integral aspect in mathematics distinguished as two or more multiples of a certain number. For instance, if you want to find the LCM of 3 and 5, you first need to least all the multiples of number “3”. That is […]

What is Interval Notation?

An interval notation is a mathematical method of writing down a set of numbers along an axis. It is also used to describe a specific group of numbers along the X-Axis. In another way, it may be synonymous to a way of writing subsets of the real number line. Looking at the linear equation, the […]

What is an isotope?

An isotope represents the different version of atoms contained in a single element found in the periodic table. It comes from the Greek word “same place.” Each element can have identical number of protons but different number of neutrons. Hence, the isotopes contained in the same element can bear the same atomic number but vary […]

What is air resistance?

The acceleration of an object depends on two variables which are the net force acting upon the object and the object’s mass. Remember Newton’s second law of motion? It pertains to how objects behave when all existing forces involved are not balanced. It also states that as the mass of an object is increased, the […]

What is aerodynamics?

Aerodynamics refers to the field of science that deals with the study of air movement and its interaction or effect when it comes in contact with solid and moving objects.  The study of aerodynamics started with experiments regarding the theory of air resistance and its corresponding effect to moving objects. The first application of aerodynamics […]

What is focal length?

In the field of photography, focal length is one of many terms that is commonly used among expert photographers and enthusiasts.  Many people may also encounter this term when reading labels for digital or SLR cameras.  Focal length is basically the length or distance from the camera’s lens to its focal point.  In technical terms, […]

What is buoyancy and how does it relate to balloons?

What is buoyancy and how does it relate to balloons? Buoyancy is the property of objects that make them float on water.  In simple terms, whenever an object is lighter than water, for example, it is expected to float.  For most experts, many of them prefer the term ‘density’ when speaking about buoyancy. When an […]

What is Escape Velocity?

What is Escape Velocity? Escape velocity refers to the velocity required on a particular body for it to counteract the effect of gravitational force that would make it slow down and return back to its origin. This concept of physics can be easily understood when an object or body is pushed up in the air. […]

What is Inertia for Kids?

What is Inertia for Kids? Inertia is a nice and easy physics lessons for kids and children. In physics, inertia is part of Isaac Newton’s First Law of Motion simply stating that a particular object at rest will stay in that state unless otherwise a force is put on it for the object to move. […]

What is Buoyant Force?

What is Buoyant Force? Buoyant force refers to the amount of pressure exerted on a particular object when placed on some kind of fluid. In scientific terms, fluids may either be liquid or gas. This concept is based on the Archimedes principle that the force acting on an object in a liquid is equal to […]

What is Voltage?

What is Voltage? People often hear or read the word voltage. Voltage is a part of everyone’s daily life. People can read it in each electrical appliance used in their homes. Even the computer you are using to read this article right now is utilizing voltage. What is voltage? Voltage is a kind of driving […]

What is kWh?

What is kWh? The symbol kWh stands for kilowatt-hour, which is a unit of energy amounting to one kWh. KWh is not used in any formal system as standard unit. However, the unit is used to determine the consumption of electricity. It is commonly used in household electrical applications. With the use of a kilowatt-hour […]

What is Boiling Point?

What is Boiling Point? Boiling point is usually defined as the temperature with which an element or a substance (specifically liquids) comes to a boil. Scientifically, it is defined as temperature at which a liquid’s vapor pressure is on par with the environmental pressure surrounding it. A liquid has a low boiling point when contained […]