# Principles of Technology

## Mechanical Work (2:1)

### Video Study Guide

What do you need to do "WORK" in the mechanical system?

What is the formula for Mechanical Work?

What if the "applied net force" fails to cause movement?

What are the units of work in English and S.I. systems?

How does time relate to work?

What is efficiency?

What machine is 100% efficient?

What is the formula for rotational mechanical work?

What is Theta (ø) and what 2 ways is it measured (what are the
units)?

How many degrees in 1 radian?

Write the formula for linear mechanical work based on its units (very
important!).

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