Relative velocity is the velocity of an object in motion being observed from a frame of reference that is either in motion or stationary. If the frame of reference is moving in the same direction as the object being observed, …
Ribonucleic acid or RNA is one of the three major biological macromolecules that are essential for all known forms of life (along with DNA and proteins). A central tenet of molecular biology states that the flow of genetic information in …
The torr originally intended to be a unit equal to one millimeter of mercury, but it no longer corresponds exactly. The pressure exerted by a fluid due to gravity is known as hydrostatic pressure, p: P = hρg Where h is the height of the fluid, ρ is …
A tension is a force along the length of a medium; in particular, it is a pulling force that acts along a stretched flexible connector, such as a rope or cable. The word “tension” comes from a Latin word meaning …
A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people. Mutations range in size; they can affect anywhere from a single DNA …
When most liquids are cooled, they eventually freeze and form crystalline solids, solids in which the atoms, ions, or molecules arranged in a definite repeating pattern. It is also possible for a liquid to freeze before its molecules become arranged in …
The principle of work and kinetic energy (also known as the work-energy theorem) states that the work done by the sum of all forces acting on a particle equals the change in the kinetic energy of the particle. This definition …
The Human Eye: The human eye is an organ that reacts with light and allows light perception, colour vision, and depth perception. The human eye is the gateway to one of our five senses. The human eye is an organ …
Organic compounds that contain one or more double or triple bonds between carbon atoms described as unsaturated. You have likely heard of unsaturated fats. These are complex organic molecules with long chains of carbon atoms, which contain at least one …
Conservative force—a force with the property that the work done in moving a particle between two points is independent of the path it takes. A conservative force is a force with the property that the work done in moving a …