# A Note On Vocabular

Submitted By Norbs7
Words: 511
Pages: 3

Tyler Norbeck
Vocabulary
Metric units-is the world standard for measurement. Not only do scientists throughout the world use it, but also most nations have adopted it as their standard of measurement.
Kilogram-a unit of mass equal to 1000 grams: the basic unit of mass
Centimeter-one 100th of a meter, equivalent to 0.3937 inch.
Second-the basic unit of time in the International System of Units (SI)
Delta-an incremental change in a variable
Sigma-the symbol Σ, indicating summation of the numbers or quantities indicated
Si units-an internationally accepted coherent system of physical units
Time-the indefinite continued progress of existence and events in the past, present, and future regarded as a whole.
Length-the longest extent of anything as measured from end to end
Tension-the act of stretching or straining.
Mass-a body of coherent matter, usually of indefinite shape and often of considerable size
Distance-the extent or amount of space between two things, points, lines
Displacement-the displacing in space of one mass by another
Initial velocity-is the rate of change of the displacement
Final velocity-distance divided by time.
Instantaneous velocity-is the velocity at a specific instant in time
Acceleration- the rate of change of velocity per unit of time
Weight-a body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing.
Gravity close to earth-9.81m/s^2
Vector- a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another
Scalar-having only magnitude, not direction.
Range- the area of variation between upper and lower limits on a particular scale
Trajectory- the path followed by a projectile flying or an object moving under the action of given forces.
Free fall- downward movement under the force of gravity only.
Coefficient of friction-mew
Force- strength or energy as an attribute of physical action