Work and Simple Machines

Simple Machines  

•

A simple machine is a machine that does work with only one movement.

•The six simple machines are the inclined plane, lever, wheel and axle, screw, wedge, and pulley.

 

 

1) Inclined plane

 

2)  Lever

  

 3) Wheel and Axle

 4) Screw

5)  Wedge

6) Pulley

 

Posted Tuesday, November 23, 2010 12:30 PM by MrC | 0 Comments

Chapter 3 - Work and Simple Machines  

1) Text pp. 74-76, 78; vocabulary, blue Q/A, reading check, self check # 1, 5,6  

2) HW – p. 76 – practice problems #1,2

3) pp. 80 – 84, self check #1; Find 3 examples of a machine making work easier: changing direction, changing distance and changing force.

4) Read pp.  85 – 91; vocabulary, blue questions, reading check.

5) Text p. 95 – visualizing main ideas

pp. 96-97 - # 4, 6-9, 11, 12, 14, 18, 20, 22, 25, 26

Posted Wednesday, November 17, 2010 1:05 PM by MrC | 0 Comments

Work = Force * distance  

W = Fd

Work (Joules) = Force (Newtons) x distance (m)