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SI Prefixes: When setting up a conversion factor to or from a base unit, use 1 for the prefixed unit and the power of 10 in front of the base unit. Example: 1 mg = 10-3 g; 1 kg = 103 g. Enter 103 in your calculator by typing 1 E 3 (using a button labeled E, EE, or EXP).
SI Units and Prefixes. SI units (The International System of Units) are essentially the basic units from which all other units are derived. It is important to learn the common units for physical quantities, but you may also be asked what these units are in terms of their base units.
Prefixes. In Physics we have to deal with quantities from the very large to the very small. A prefix is something that goes in front of a unit and acts as a multiplier. This sheet will give you practice at converting figures between prefixes. (3)! Complete the table, below: (4)! Convert the figures into the prefixes required.
Practice Problems for SI Base Units, Prefixes, and Derived Units . Due: Tomorrow beginning of class, if not done in class today. Show ALL work. 1. List the base unit (no prefix needed) that would be used to measure the following things: a. Perimeter of a rectangle . b. Temperature of a liquid during a reaction .
A. Conversions to and from base unit (no prefix). (Problem-solving hint: convert the initial number into scientific notation first, then modify the power of 10 in the correct direction. Remember as the unit gets smaller, the number gets larger and vice-versa.) 1. Convert 4.0 cm to m. c = 10 −2 so 4.0 cm = 4.0 × 10 −2 m
SI Prefixes: When setting up a conversion factor to or from a base unit, use 1 for the prefixed unit and the power of 10 for the base unit. Example: 1 mg = 10-3 g; 1 kg = 103 g. Give all answers in scientific notation. Practice setting these up as dimensional analysis conversions with cancelling units.
Free body diagrams (otherwise known as FBD's) are simplified representations of an object (the body) in a problem, and include force vectors acting on the object. This body is free because the diagram will show it without its surroundings; i.e. the body is 'free' of its environment.
