Unit 6

Energy, Systems, and Mechanics

Back to Mrs. G

Vocab:

Unit 6  

Online Flash Cards

Notes:  

Simple Machines  Centripetal Force
Mechanical Advantage

 Efficiency

  Levers       MA Lever Graphic

  Torque

Three Classes Levers

  Angular Speed - Linear Speed

Work, Power, and Efficiency Notes

 Center of Mass vs Center of Gravity

Pulleys

  Friction: A force that opposes motion

                   

                                                         

Types of friction:

  • Static Friction - Friction that occurs acting against motion when one surface is not moving over the other.

  • Sliding friction - Friction that occurs between surfaces when two solid objects are sliding over each other.

  • Rolling friction - Friction that occurs between the wheel or round object when an object rolls over a surface.

  • Fluid friction - Friction that occurs between the object and the fluid when an object moves through a fluid

 

Assignments: 

 Calculating Power

Simple Machines

Power 4.1 Types of Levers
 Work Done Against Gravity  Mechanical Advantage
Mechanical Advantage

 Calculating Efficiency

Mechanical Advantage Levers and Inclined Planes Efficiency

                                                                                                

 

Experiments:

Two Kinds of Friction Center of Gravity 1  2

Friction

Work, Force & Machines - Pulley MA
Work  

                                                            

Review Games: 

Simple Machine Levers
Mechanical Mission Work and Simple Machines
Medieval Levers  

Technology:  

 Ed Heads - Simple Machines

Worksheet

Ed Heads - Odd Machines    

Friction

 
Aspire Simple and Complex Machines

Activity 1   Activity 2    Activity 3

  Coasters

                                               

                           

                                

Century of Firsts      Directions

Aeronautics

                                                                        

Resources:  

Franklin Institute's Simple Machines  http://www.fi.edu/qa97/spotlight3/spotlight3.html

Inventor's Toolbox  http://www.mos.org/sln/Leonardo/InventorsToolbox.html

Mechanics Info & Quiz http://www.mcwdn.org/Physics/Mechanics.html

How a Block and Tackle Works http://science.howstuffworks.com/pulley.htm
How Gears Work http://science.howstuffworks.com/gear.htm
Machines Make life Easier  http://www.usoe.k12.ut.us/curr/science/sciber00/8th/machines/sciber/intro.htm

Back to Mrs. G