                  # For the Classroom - Units

Objectives:
Familiarize students with the various types of units and how to convert between different units.

Discussion Topics:

#### English vs. Metric

• Which unit systems are primarily used where

#### Distance

• mm – (approximately the width of a dime)
• Terminology – Machinists express small measurements in thousands of an inch

#### Temperature

• TF = 2*TC + 32 (Approximately)
• Introduction to Kelvin

#### Mass

• Mass and weight are related properties of matter, but not the same

#### Volume

• The amount of space that an object or substance occupies

#### Pressure

• F=ma (Examples: Piston/Air cylinder)

#### Energy

• The ability a physical system has to do work on other physical systems

#### Power

• Power is the rate at which work is performed or energy is converted

#### Density

• ρ=m/v (from General Equations section)
• Discuss Different materials
• Strength vs. Weight
• Additional Materials are listed on the inside card

#### Unit Prefixes

• Introduce students to Scientific Notation (Exponential Notation)
• Show students how to use scientific notation functions on their calculators

#### Classroom Practice (with other supporting materials):

• How to use Calipers and a Micrometer
• Use a calculator to perform some basic unit conversations          Home | Slide Chart Details | Slide Chart Development | Promotions | Contact Engineering Slide Chart