# Applied Physics Ch 1

 What is a Standard of Measure? Sets of units of measurement for length, weight, and other quantities defined in a way that is useful to a large number of people What does SI stand for? Systeme International d'Unites Name 4 SI units of Measure Kilogram, second, kelvin, mole, meter (metre), liter (litre), watt, joule Who is Gabriel Mouton? A man who is often credited for originating the metric system What is the Scientific Notation? A useful method of expressing such very small or large numbers What is 10,000 in Scientific Notation? 104 What is the basic SI unit of length? Meter/metre(m) What is a Conversion Factor? An expression used to change from one unit or set of units to another example: Meter to Centimeter What is Area of a figure? The number of square units that it contains What is the Volume of a figure? The number of cubic units that it contains What is the Mass of an object? The quantity of material making up the object What is the basic unit of mass in the metric system? Kilogram (kg) What is the Weight of an object? A measure of the gravitational force or pull acting on it What is the weight unit in the metric system? Newton (N) What is a Spring Balance? An instrument containing a spring with a pointer attached to it What is a Platform Balance? Consists of two platforms connected by a horizontal rod that balances on a knife edge What is the basic unit of time? Second (s) What is an Exact Number? A number that has been determined as a result of counting such as 24 students in a class What is an Approximate Number? Numbers determined as a result of some measurement process. direct-with ruler indirect- surveying transit What are Significant Digits? The number of units that we are reasonably sure of having counted when making a measurement Authorxosari08xo ID59506 Card SetApplied Physics Ch 1 DescriptionCh1 Updated2011-01-13T19:00:21Z Show Answers