BIOPHYSICS - MODULE 2

measurement

a process wherein a property of an object is compared to that of a set standard

SI

also known as the modern Metric System, developed by the French and in this system, it uses the power of ten in conversion: from larger to smaller units or vice versa

Scientific Notation

Expression of any number as a number greater than or equal to 1 but less than 10 multiplied to a power of 10

conversion factor

a numeric expression that enables to be changed to an equal exchange

conversion factor

a number used to change one set of units to another, by multiplying or dividing

Factor Label Method

a process where conversion factors are used as ratios and are multiplied to the measurement that is to be changed such that only the desired unit/s will remain

Scalars

physical quantity that has only a magnitude

vectors

physical quantity that has both a magnitude and a direction

Parallel vectors

two vectors are said to be _____________, if they have same direction

Equal vectors

two parallel vectors are said to be ___________, if they have same magnitude

Anti-parallel vectors

two vectors are said to be a _____________, if they are in opposite directions

Negative vectors

Two anti-parallel vectors are said to be _____________, if they have same magnitude

Collinear vectors

Two vectors are said to be ______________, if they act along a same line.

Co-initial vectors

two or more vectors are said to be _____________, if they have common initial point.

Co- terminus vectors

two or more vectors are said to be ______________, if they common terminal point

Coplanar vectors

two three or more vectors are said to be _____________, if they have lie in the same plane

Non-coplanar vectors

three or more vectors are said to be ______________, if they are distributed in space.

Polar Vectors

Vectors having straight line effect

axial vectors

Vectors having rotational effect

unit vectors

A vector that has a magnitude of exactly 1 and drawn in the direction of given vector.