3. RED SLIDE: These are notes that are very important and should be recorded in your science journal. Copyright © 2010 Ryan P. Murphy

4. -Nice neat notes that are legible and use indentations when appropriate.

5. -Nice neat notes that are legible and use indentations when appropriate. -Example of indent.

6. -Nice neat notes that are legible and use indentations when appropriate. -Example of indent. -Skip a line between topics

7. -Nice neat notes that are legible and use indentations when appropriate. -Example of indent. -Skip a line between topics -Make visuals clear and well drawn.

8. -Nice neat notes that are legible and use indentations when appropriate. -Example of indent. -Skip a line between topics -Make visuals clear and well drawn. Please label. Effort Arm Resistance Arm

9. RED SLIDE: These are notes that are very important and should be recorded in your science journal. BLACK SLIDE: Pay attention, follow directions, complete projects as described and answer required questions neatly. Copyright © 2010 Ryan P. Murphy

10. Keep an eye out for “The-Owl” and raise your hand as soon as you see him. –He will be hiding somewhere in the slideshow Copyright © 2010 Ryan P. Murphy

11. Keep an eye out for “The-Owl” and raise your hand as soon as you see him. –He will be hiding somewhere in the slideshow “Hoot, Hoot” “Good Luck!” Copyright © 2010 Ryan P. Murphy

14. Law Conservation of energy: energy cannot be created or destroyed.

15. –Simple machines generally require more work / energy to complete a task, but they…

16. Machines… Machines… - - - - Copyright © 2010 Ryan P. Murphy

17. Transfer force from one place to another. Transfer force from one place to another. Copyright © 2010 Ryan P. Murphy

18. Change direction of a force. Change direction of a force. Copyright © 2010 Ryan P. Murphy

19. Increase the magnitude of a force. Increase the magnitude of a force. Copyright © 2010 Ryan P. Murphy

20. Increase the distance or speed of a force. Increase the distance or speed of a force. Copyright © 2010 Ryan P. Murphy

21. Machine: Anything that helps you do work.

22. Work = Force x Distance

23. Which of the following is not something machines do. –B.) Machines can change the direction of the force you put in. ( ex. A Car jack) –C.) Machines create energy in order to complete a force. (ex. reactor) –D.) Machines can increase the speed of the force. (ex. Bicycle)

24. Which of the following is not something machines do. –A.) Machines can make the force you put into a machine greater. (ex. Pliers) –B.) Machines can change the direction of the force you put in. ( ex. A Car jack) –C.) Machines create energy in order to complete a force. (ex. reactor) –D.) Machines can increase the speed of the force. (ex. Bicycle)

25. Which of the following is not something machines do. –A.) Machines can make the force you put into a machine greater. (ex. Pliers) –B.) Machines can change the direction of the force you put in. ( ex. A Car jack) –C.) Machines create energy in order to complete a force. (ex. reactor) –D.) Machines can increase the speed of the force. (ex. Bicycle)

26. Which of the following is not something machines do. –A.) Machines can make the force you put into a machine greater. (ex. Pliers) –B.) Machines can change the direction of the force you put in. ( ex. A Car jack) –C.) Machines create energy in order to complete a force. (ex. reactor) –D.) Machines can increase the speed of the force. (ex. Bicycle)

27. Which of the following is not something machines do. –A.) Machines can make the force you put into a machine greater. (ex. Pliers) –B.) Machines can change the direction of the force you put in. ( ex. A Car jack) –C.) Machines create energy in order to complete a force. (ex. reactor) –D.) Machines can increase the speed of the force. (ex. Bicycle)

28. Which of the following is not something machines do. –A.) Machines can make the force you put into a machine greater. (ex. Pliers) –B.) Machines can change the direction of the force you put in. ( ex. A Car jack) –C.) Machines create energy in order to complete a force. (ex. reactor) –D.) Machines can increase the speed of the force. (ex. Bicycle)

29. Which of the following is not something machines do. –A.) Machines can make the force you put into a machine greater. (ex. Pliers) –B.) Machines can change the direction of the force you put in. ( ex. A Car jack) –C.) Machines create energy in order to complete a force. (ex. reactor) –D.) Machines can increase the speed of the force. (ex. Bicycle)

30. Match the correct work of machines to the picture. –A.) Machines can increase the speed of the force. –B.) Machines can make the force you put into a machine greater. –C.) Machines can change the direction of the force you put in.

31. Match the correct work of machines to the picture. –A.) Machines can increase the speed of the force. –B.) Machines can make the force you put into a machine greater. –C.) Machines can change the direction of the force you put in.

32. Match the correct work of machines to the picture. –A.) Machines can increase the speed of the force. –B.) Machines can make the force you put into a machine greater. –C.) Machines can change the direction of the force you put in.

33. Match the correct work of machines to the picture. –A.) Machines can increase the speed of the force. –B.) Machines can make the force you put into a machine greater. –C.) Machines can change the direction of the force you put in.

34. Match the correct work of machines to the picture. –A.) Machines can increase the speed of the force. –B.) Machines can make the force you put into a machine greater. –C.) Machines can change the direction of the force you put in.

35. Match the correct work of machines to the picture. –A.) Machines can increase the speed of the force. –B.) Machines can make the force you put into a machine greater. –C.) Machines can change the direction of the force you put in.

36. Match the correct work of machines to the picture. –A.) Machines can increase the speed of the force. –B.) Machines can make the force you put into a machine greater. –C.) Machines can change the direction of the force you put in.

37. Law Conservation of energy: energy cannot be created or destroyed.

38. –Simple machines generally require more work / energy to complete a task. Example

39. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

40. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

41. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

42. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

43. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

44. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

45. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

46. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

47. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

48. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

49. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

50. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

51. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

52. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

53. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

54. Law Conservation of energy: energy cannot be created or destroyed. –Simple machines generally require more work / energy to complete a task. Example

55. Efficiency: A measure of how much more work must be put into a machine than you get out of the machine.

56. The efficiency of a machine will always be less than 100%.

57. Efficiency: A measure of how much more work must be put into a machine than you get out of the machine. –The efficiency of a machine will always be less than 100%. –If there was no friction, the best you could hope for is an efficiency of 100% meaning work in = work out.

58. Efficiency: A measure of how much more work must be put into a machine than you get out of the machine. –The efficiency of a machine will always be less than 100%. –If there was no friction, the best you could hope for is an efficiency of 100% meaning work in = work out.

59. Efficiency: A measure of how much more work must be put into a machine than you get out of the machine. –The efficiency of a machine will always be less than 100%. –If there was no friction, the best you could hope for is an efficiency of 100% meaning work in = work out.

65. Force is measured in a unit called the Newton. Force is measured in a unit called the Newton. Copyright © 2010 Ryan P. Murphy

66. Force is measured in a unit called the Newton. Force is measured in a unit called the Newton. Copyright © 2010 Ryan P. Murphy

67. Force is measured in a unit called the Newton. Force is measured in a unit called the Newton. Copyright © 2010 Ryan P. Murphy

68. Force is measured in a unit called the Newton. Force is measured in a unit called the Newton. Copyright © 2010 Ryan P. Murphy

69. Force is measured in a unit called the Newton. Force is measured in a unit called the Newton. Copyright © 2010 Ryan P. Murphy

70. Force is measured in a unit called the Newton. Force is measured in a unit called the Newton. Copyright © 2010 Ryan P. Murphy

71. Force is measured in a unit called the Newton. Force is measured in a unit called the Newton. Copyright © 2010 Ryan P. Murphy

72. Force is measured in a unit called the Newton. Force is measured in a unit called the Newton. Copyright © 2010 Ryan P. Murphy

73. Force is measured in a unit called the Newton. Force is measured in a unit called the Newton. Copyright © 2010 Ryan P. Murphy

74. Force is measured in a unit called the Newton. Force is measured in a unit called the Newton. Copyright © 2010 Ryan P. Murphy

75. One Newton is the amount of force required to give a 1 kg mass an acceleration of 1 m/s/s. One Newton is the amount of force required to give a 1 kg mass an acceleration of 1 m/s/s. Copyright © 2010 Ryan P. Murphy

76. One Newton is the amount of force required to give a 1 kg mass an acceleration of 1 m/s/s. One Newton is the amount of force required to give a 1 kg mass an acceleration of 1 m/s/s. Copyright © 2010 Ryan P. Murphy

77. One Newton is the amount of force required to give a 1 kg mass an acceleration of 1 m/s/s. One Newton is the amount of force required to give a 1 kg mass an acceleration of 1 m/s/s. Copyright © 2010 Ryan P. Murphy Learn more: Force. http://www.physicsclassroom.com/class/newt laws/u2l2a.cfm http://www.physicsclassroom.com/class/newt laws/u2l2a.cfm http://www.physicsclassroom.com/class/newt laws/u2l2a.cfm

78. One Newton is the amount of force required to give a 1 kg mass an acceleration of 1 m/s/s.One Newton is the amount of force required to give a 1 kg mass an acceleration of 1 m/s/s. Copyright © 2010 Ryan P. Murphy

79. One Newton is the amount of force required to give a 1 kg mass an acceleration of 1 m/s/s.One Newton is the amount of force required to give a 1 kg mass an acceleration of 1 m/s/s. Copyright © 2010 Ryan P. Murphy

80. Mass: Amount of matter in an object. Mass: Amount of matter in an object. Copyright © 2010 Ryan P. Murphy

82. “I’m weightless but I still have mass.” Copyright © 2010 Ryan P. Murphy

83. New Area of focus: Simple Machines. New Area of focus: Simple Machines. Copyright © 2010 Ryan P. Murphy

85. Activity: Ancient use of Simple Machines. –Use PVC piping to move an upside down lab table and some people sitting on it down the hall. Copyright © 2010 Ryan P. Murphy

86. Set-up of challenge. –Move pipes from the rear to the front before the table moves. –How efficient can your group work?

87. Please reflect upon the activity. –What type of machine was used? –Did it help? Copyright © 2010 Ryan P. Murphy

88. Mechanical advantage (MA): The number of times a machine multiplies your effort force. Mechanical advantage (MA): The number of times a machine multiplies your effort force. Copyright © 2010 Ryan P. Murphy

89. To find MA To find MA Divide resistance force (usually weight in g) by the effort force (Newtons) Divide resistance force (usually weight in g) by the effort force (Newtons) Copyright © 2010 Ryan P. Murphy

90. To find MA To find MA Divide resistance force (usually weight in g) by the effort force (Newton) Divide resistance force (usually weight in g) by the effort force (Newton) Copyright © 2010 Ryan P. Murphy

91. To find MA To find MA Divide resistance force (usually weight in g) by the effort force (Newton) Divide resistance force (usually weight in g) by the effort force (Newton) Copyright © 2010 Ryan P. Murphy

92. To find MA To find MA Divide resistance force (usually weight in g) by the effort force (Newton) Divide resistance force (usually weight in g) by the effort force (Newton) Copyright © 2010 Ryan P. Murphy

93. To find MA To find MA Divide resistance force (usually weight in g) by the effort force (Newton) Divide resistance force (usually weight in g) by the effort force (Newton) Copyright © 2010 Ryan P. Murphy

94. To find MA To find MA Divide resistance force (usually weight in g) by the effort force (Newton) Divide resistance force (usually weight in g) by the effort force (Newton) Copyright © 2010 Ryan P. Murphy FOFOFOFO = MA

95. To find MA To find MA Divide resistance force (usually weight in g) by the effort force (Newton) Divide resistance force (usually weight in g) by the effort force (Newton) Copyright © 2010 Ryan P. Murphy FOFOFOFO FIFIFIFI = MA

96. Find the MA of the following. The work input was 2, and the output was 18.The work input was 2, and the output was 18.

97. Find the MA of the following. The work input was 2, and the output was 18.The work input was 2, and the output was 18.

98. Find the MA of the following. The work input was 2, and the output was 18.The work input was 2, and the output was 18. FIFIFIFI FOFOFOFO

99. Find the MA of the following. The work input was 2, and the output was 18.The work input was 2, and the output was 18. FIFIFIFI FOFOFOFO

100. Find the MA of the following. The work input was 2, and the output was 18.The work input was 2, and the output was 18. FIFIFIFI FOFOFOFO

101. Find the MA of the following. The work input was 2, and the output was 18.The work input was 2, and the output was 18. FIFIFIFI FOFOFOFO 2 18

102. Find the MA of the following. The work input was 2, and the output was 18.The work input was 2, and the output was 18. FIFIFIFI FOFOFOFO 2 18 = 9 MA

103. Find the MA of the following. The work input was 2, and the output was 18.The work input was 2, and the output was 18. FIFIFIFI FOFOFOFO 2 18 = 9 MA Mechanical Advantage: Learn More at… http://www.wisc- online.com/objects/ViewObject.aspx?ID=ENG20504 http://www.wisc- online.com/objects/ViewObject.aspx?ID=ENG20504http://www.wisc- online.com/objects/ViewObject.aspx?ID=ENG20504

105. 12 N 6 N

106. 12 N 6 N FOFOFOFO FIFIFIFI

107. 12 N 6 N FOFOFOFO FIFIFIFI

108. 12 N 6 N FOFOFOFO FIFIFIFI

109. 12 N 6 N FOFOFOFO FIFIFIFI 6N 12N

110. 12 N 6 N FOFOFOFO FIFIFIFI 6N 12N = 12 MA

112. 40 N 20 N

113. 40 N 20 N FOFOFOFO FIFIFIFI

114. 40 N 20 N FOFOFOFO FIFIFIFI

115. 40 N 20 N FOFOFOFO FIFIFIFI 20N 40N

116. 40 N 20 N FOFOFOFO FIFIFIFI 20N 40N = 2 MA

117. 40 N 20 N FOFOFOFO FIFIFIFI 20N 40N = 2 MA

119. 90 N 45 N

120. 90 N 45 N FOFOFOFO FIFIFIFI

121. 90 N 45 N FOFOFOFO FIFIFIFI 45N 90N

122. 90 N 45 N FOFOFOFO FIFIFIFI 45N 90N = 2 MA

123. Law Conservation of Energy

124. –Energy cannot be created or destroyed.

125. Law Conservation of Energy –Energy cannot be created or destroyed. –Energy can be transferred.

126. Law Conservation of Energy –Energy cannot be created or destroyed. –Energy can be transferred.

127. Law Conservation of Energy –Energy cannot be created or destroyed. –Energy can be transferred.

128. Video Links! Mechanical Advantage, Khan Academy, Optional (Advanced) (I,II,III) –http://www.khanacademy.org/science/physics/m echanics/v/introduction-to-mechanical-advantage (Part 1)http://www.khanacademy.org/science/physics/m echanics/v/introduction-to-mechanical-advantage –http://www.khanacademy.org/science/physics/m echanics/v/mechanical-advantage--part-2 (2)http://www.khanacademy.org/science/physics/m echanics/v/mechanical-advantage--part-2 –http://www.khanacademy.org/science/physics/m echanics/v/mechanical-advantage--part-3 (3)http://www.khanacademy.org/science/physics/m echanics/v/mechanical-advantage--part-3

129. Simple machines: Types of machines that do work with one movement. Simple machines: Types of machines that do work with one movement. Copyright © 2010 Ryan P. Murphy

130. Simple machines: Types of machines that do work with one movement. Simple machines: Types of machines that do work with one movement. Copyright © 2010 Ryan P. Murphy

131. Simple machines: Types of machines that do work with one movement. Simple machines: Types of machines that do work with one movement. Copyright © 2010 Ryan P. Murphy

132. Simple machines: Types of machines that do work with one movement. Simple machines: Types of machines that do work with one movement. Copyright © 2010 Ryan P. Murphy

133. Simple machines: Types of machines that do work with one movement. Simple machines: Types of machines that do work with one movement. Copyright © 2010 Ryan P. Murphy

134. Simple machines: Types of machines that do work with one movement. Simple machines: Types of machines that do work with one movement. Copyright © 2010 Ryan P. Murphy

135. Simple machines: Types of machines that do work with one movement. Simple machines: Types of machines that do work with one movement. Copyright © 2010 Ryan P. Murphy

136. Simple machines: Types of machines that do work with one movement. Simple machines: Types of machines that do work with one movement. Copyright © 2010 Ryan P. Murphy

137. Simple machines: Types of machines that do work with one movement. Simple machines: Types of machines that do work with one movement. Copyright © 2010 Ryan P. Murphy

138. Simple machines: Types of machines that do work with one movement. Simple machines: Types of machines that do work with one movement. Copyright © 2010 Ryan P. Murphy

139. Simple Machines Available Sheet: Pulleys

140. Pulley Pulley Uses grooved wheels and a rope to raise, lower or move a load. Uses grooved wheels and a rope to raise, lower or move a load. Copyright © 2010 Ryan P. Murphy

141. Pulley Pulley Uses grooved wheels and a rope to raise, lower or move a load. Uses grooved wheels and a rope to raise, lower or move a load. Copyright © 2010 Ryan P. Murphy

142. A pulley makes work seem easier A pulley makes work seem easier Copyright © 2010 Ryan P. Murphy

143. A pulley makes work seem easier A pulley makes work seem easier Copyright © 2010 Ryan P. Murphy

144. A pulley makes work seem easier A pulley makes work seem easier Changes the direction of motion to work with gravity. Changes the direction of motion to work with gravity. Copyright © 2010 Ryan P. Murphy

145. A pulley makes work seem easier A pulley makes work seem easier Changes the direction of motion to work with gravity. Instead of lifting up, you can pull down. Changes the direction of motion to work with gravity. Instead of lifting up, you can pull down. Copyright © 2010 Ryan P. Murphy

146. A pulley makes work seem easier A pulley makes work seem easier Changes the direction of motion to work with gravity. Instead of lifting up, you can pull down. Changes the direction of motion to work with gravity. Instead of lifting up, you can pull down. Uses your body weight against the resistance. Uses your body weight against the resistance. Copyright © 2010 Ryan P. Murphy

147. The more pulleys that are used, the more the MA (Mechanical Advantage). The more pulleys that are used, the more the MA (Mechanical Advantage). Copyright © 2010 Ryan P. Murphy

148. The more pulleys that are used, the more the MA (Mechanical Advantage). The more pulleys that are used, the more the MA (Mechanical Advantage). Copyright © 2010 Ryan P. Murphy

149. MA = The number of ropes that support the pulley. The end of the rope doesn’t count. MA = The number of ropes that support the pulley. The end of the rope doesn’t count. What is the MA of this pulley system below? What is the MA of this pulley system below? Copyright © 2010 Ryan P. Murphy

150. MA = The number of ropes that support the pulley. The end of the rope doesn’t count. –What is the MA of this pulley system below? Copyright © 2010 Ryan P. Murphy

151. MA = The number of ropes that support the pulley. The end of the rope doesn’t count. MA =2 –What is the MA of this pulley system below? Copyright © 2010 Ryan P. Murphy

152. MA = The number of ropes that support the pulley. The end of the rope doesn’t count. MA =2 –What is the MA of this pulley system below? Copyright © 2010 Ryan P. Murphy

153. MA = The number of ropes that support the pulley. The end of the rope doesn’t count. MA =2 –What is the MA of this pulley system below? Copyright © 2010 Ryan P. Murphy FIFIFIFI =

154. MA = The number of ropes that support the pulley. The end of the rope doesn’t count. MA =2 –What is the MA of this pulley system below? Copyright © 2010 Ryan P. Murphy FOFOFOFO FIFIFIFI

155. MA = The number of ropes that support the pulley. The end of the rope doesn’t count. MA =2 –What is the MA of this pulley system below? Copyright © 2010 Ryan P. Murphy FOFOFOFO FIFIFIFI FIFIFIFI FOFOFOFO

156. MA = The number of ropes that support the pulley. The end of the rope doesn’t count. MA =2 –What is the MA of this pulley system below? Copyright © 2010 Ryan P. Murphy FOFOFOFO FIFIFIFI FIFIFIFI FOFOFOFO 100 kg 50 kg

157. MA = The number of ropes that support the pulley. The end of the rope doesn’t count. MA =2 –What is the MA of this pulley system below? Copyright © 2010 Ryan P. Murphy FOFOFOFO FIFIFIFI FIFIFIFI FOFOFOFO 100 kg 50 kg = 2 MA

158. What is the MA of this pulley system? MA=2 Copyright © 2010 Ryan P. Murphy

159. Answer, the MA is 4. Copyright © 2010 Ryan P. Murphy

160. Answer, the MA is 4. Copyright © 2010 Ryan P. Murphy

161. Answer, the MA is 4. Copyright © 2010 Ryan P. Murphy FIFIFIFI FOFOFOFO

162. Answer, the MA is 4. Copyright © 2010 Ryan P. Murphy FIFIFIFI FOFOFOFO FIFIFIFI FOFOFOFO

163. Answer, the MA is 4. Copyright © 2010 Ryan P. Murphy FIFIFIFI FOFOFOFO FIFIFIFI FOFOFOFO

164. Answer, the MA is 4. Copyright © 2010 Ryan P. Murphy FIFIFIFI FOFOFOFO FIFIFIFI FOFOFOFO 100 25

165. Answer, the MA is 4. Copyright © 2010 Ryan P. Murphy FIFIFIFI FOFOFOFO FIFIFIFI FOFOFOFO 100 25 = 4 MA

166. What is the MA?

175. Pulley Simulator: (Optional) –http://www.compassproject.net/sims/pulley.htmlhttp://www.compassproject.net/sims/pulley.html

176. Three types of pulleys Three types of pulleys - - - Copyright © 2010 Ryan P. Murphy

177. Fixed pulley Fixed pulley No MA No MA Copyright © 2010 Ryan P. Murphy

178. Fixed pulley Fixed pulley No MA No MA Copyright © 2010 Ryan P. Murphy

179. Movable Pulley (MA of 2) Movable Pulley (MA of 2) Copyright © 2010 Ryan P. Murphy

180. Movable Pulley (MA of 2) Movable Pulley (MA of 2) Copyright © 2010 Ryan P. Murphy

181. Combined Pulley / Block and tackle Combined Pulley / Block and tackle Copyright © 2010 Ryan P. Murphy

182. Rock climbing uses pulleys. Copyright © 2010 Ryan P. Murphy

183. Rock climbing uses pulleys. Copyright © 2010 Ryan P. Murphy

184. Rock climbing uses pulleys. Copyright © 2010 Ryan P. Murphy

185. Sailing uses pulleys to ease difficult jobs. Copyright © 2010 Ryan P. Murphy

187. Pulleys

190. The chain on your bicycle is a pulley.

193. Quiz Wiz 1-10 Fixed Pulley, Moveable Pulley, Block and Tackle/Combined Pulley Copyright © 2010 Ryan P. Murphy

204. * Bonus: Name this family that used simple machines to create a tree house?

205. Answers! Quiz Wiz 1-10 Fixed Pulley, Moveable Pulley, Block and Tackle/Combined Pulley Copyright © 2010 Ryan P. Murphy

266. * Bonus: Name this family that used simple machines to create a tree house?

268. Activity! Using the three types of Pulleys Copyright © 2010 Ryan P. Murphy

269. Activity! Using the three types of Pulleys Copyright © 2010 Ryan P. Murphy I wonder what the MA of this pulley system is?

270. Activity! Using the three types of Pulleys Copyright © 2010 Ryan P. Murphy I wonder what the MA of this pulley system is?

271. Activity! Using the three types of Pulleys Copyright © 2010 Ryan P. Murphy I wonder what the MA of this pulley system is?

272. Top Pulley Bottom Pulley

273. Top Pulley Bottom Pulley

274. Top Pulley Bottom Pulley

275. Top Pulley Bottom Pulley

276. Top Pulley Bottom Pulley

277. Simple Machines Available Sheet.

278. Please create this spreadsheet in your journal. Weight (g)newtons No Pulley____ grams Fixed Pulley____ grams Combined Pulley 2 ____ grams Combined Pulley 4 ____ grams Copyright © 2010 Ryan P. Murphy

279. Please use the materials to do the following. –Measure the newtons required with a Spring Scale to lift the ____ grams of weight with the different pulleys described in the spreadsheet. Copyright © 2010 Ryan P. Murphy

280. Please use the materials to do the following. –Measure the newtons required with a Spring Scale to lift the ____ grams of weight with the different pulleys described in the spreadsheet. Copyright © 2010 Ryan P. Murphy Remember to zero your spring scale!

281. Please use the materials to do the following. –Record the newtons required with a Spring Scale to lift the ____ grams of weight with a fixed pulley.

282. Fixed Pulley System Construction

289. Please use the materials to do the following. –Record the newtons with a combined pulley to lift the weight? Spring Scale Spring Scale Copyright © 2010 Ryan P. Murphy

290. Two Pulley System Construction

298. Please use the materials to do the following. –Record newtons with a combined pulley (4) to lift the ____ grams of weight?

299. 4 Pulley System Construction

301. Two wheels / Pulley

302. 4 Pulley System Construction Two wheels / Pulley

303. 4 Pulley System Construction

305. If you don’t have double pulleys, you can still use 4 single pulley’s like so. Copyright © 2010 Ryan P. Murphy

306. Create a moveable pulley to lower the ___ gram weight into the bucket without touching it. Copyright © 2010 Ryan P. Murphy

307. Questions? –What was the advantage in newtons to use a fixed pulley rather than no pulley at all? –What was the advantage in Newtons to use a combined pulley over a fixed pulley? –What was the advantage in Newtons to use a combined pulley (4) over a combined pulley (2)? –Did a moveable pulley allow you to move the load with minimal effort? Copyright © 2010 Ryan P. Murphy

308. Questions? –What was the advantage in newtons to use a fixed pulley rather than no pulley at all? –What was the advantage in newtons to use a combined pulley over a fixed pulley? –What was the advantage in Newtons to use a combined pulley (4) over a combined pulley (2)? –Did a moveable pulley allow you to move the load with minimal effort? Copyright © 2010 Ryan P. Murphy

309. Questions? –What was the advantage in newtons to use a fixed pulley rather than no pulley at all? –What was the advantage in newtons to use a combined pulley over a fixed pulley? –What was the advantage in newtons to use a combined pulley (4) over a combined pulley (2)? –Did a moveable pulley allow you to move the load with minimal effort? Copyright © 2010 Ryan P. Murphy

310. Questions? –What was the advantage in newtons to use a fixed pulley rather than no pulley at all? –What was the advantage in newtons to use a combined pulley over a fixed pulley? –What was the advantage in newtons to use a combined pulley (4) over a combined pulley (2)? –Did a moveable pulley allow you to move the load with minimal effort? Copyright © 2010 Ryan P. Murphy

311. Weight (g)Newton No Pulley___ grams5 newtons Fixed Pulley___ grams5 newtons? Combined Pulley 2 ___ grams3 newtons? Combined Pulley 4 ___ grams1 newtons? Copyright © 2010 Ryan P. Murphy

312. Questions? –What was the advantage in newtons to use a fixed pulley rather than no pulley at all? Copyright © 2010 Ryan P. Murphy

313. Questions? –What was the advantage in newtons to use a fixed pulley rather than no pulley at all? –There was no Mechanical Advantage (MA) when using the fixed pulley. It was easier because you didn’t have to bend down. Copyright © 2010 Ryan P. Murphy

315. Questions? –What was the advantage in newtons to use a combined pulley over a fixed pulley? Copyright © 2010 Ryan P. Murphy

316. Questions? –What was the advantage in newtons to use a combined pulley over a fixed pulley? –The combined pulley required less force (2 newtons) to lift the load. The Mechanical Advantage was 2 newtons. Copyright © 2010 Ryan P. Murphy

318. Questions? –What was the advantage in newtons to use a combined pulley (4) over a combined pulley (2)? Copyright © 2010 Ryan P. Murphy

319. Questions? –What was the advantage in newtons to use a combined pulley (4) over a combined pulley (2)? –The (MA) was 4. It only took 1 newton to lift the load compared 3 newtons with the combined 2 pulley, and 5 newtons with no pulley at all. Copyright © 2010 Ryan P. Murphy

320. Pulleys. Learn more at… http://www.swe.org/iac/lp/pulley_03.html http://www.swe.org/iac/lp/pulley_03.html

321. Questions? –Did a moveable pulley allow you to move the load with minimal effort? Copyright © 2010 Ryan P. Murphy

322. Questions? –Did a moveable pulley allow you to move the load with minimal effort? –The pulley moved along the rope very easily. We were able to move the load easily once it was lifted. The pulley rolled down the rope because of it’s potential energy. Not very good for lifting. Copyright © 2010 Ryan P. Murphy

325. Simple Machines Available Sheet: Levers

326. Lever Lever -

327. A stiff bar that rests on a support called a fulcrum which lifts or moves loads. A stiff bar that rests on a support called a fulcrum which lifts or moves loads.

329. MA = length of effort arm ÷ length of resistance arm. MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy

330. MA = length of effort arm ÷ length of resistance arm. MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy

331. MA = length of effort arm ÷ length of resistance arm. MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy

332. MA = length of effort arm ÷ length of resistance arm. MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy Or…

333. MA = length of effort arm ÷ length of resistance arm. MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 120 N FIFIFIFI FOFOFOFO 360 N

334. MA = length of effort arm ÷ length of resistance arm. MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 120 N FIFIFIFI FOFOFOFO 360 N = FOFOFOFO FIFIFIFI

335. MA = length of effort arm ÷ length of resistance arm. MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 120 N FIFIFIFI FOFOFOFO 360 N = F O 360 N F I 120 N

336. MA = length of effort arm ÷ length of resistance arm. MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 120 N FIFIFIFI FOFOFOFO 360 N =3 MA =3 MA F O 360 N F I 120 N

337. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 6 Meters 3 meters

338. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 6 Meters 3 meters Effort Arm (6 meters) /

339. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 6 Meters 3 meters Effort Arm (6 meters) / Resistance Arm (3 Meters)

340. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 6 Meters 3 meters Effort Arm (6 meters) / Resistance Arm (3 Meters) = MA 2

341. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 12 meters 4 meters

342. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 12 meters 4 meters

343. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 12 meters 4 meters

344. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 12 meters 4 meters 12 meters / 4 meters =

345. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 12 meters 4 meters 12 meters / 4 meters = MA 3

347. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy 90 N 30 N

348. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy FOFOFOFO FIFIFIFI 90 N 30 N

349. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy FOFOFOFO FIFIFIFI 90 N 30 N

350. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy FOFOFOFO FIFIFIFI 90 N 30 N

351. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy FOFOFOFO FIFIFIFI 30 N 90 N 30 N

352. What is the MA of this lever? –MA = length of effort arm ÷ length of resistance arm. Copyright © 2010 Ryan P. Murphy =3 MA FOFOFOFO FIFIFIFI 30 N 90 N 30 N

353. Video Link! Levers and skateboarding. –http://www.youtube.com/watch?v=72ZNEactb-khttp://www.youtube.com/watch?v=72ZNEactb-k

354. The 3 types of levers The 3 types of levers - - - Copyright © 2010 Ryan P. Murphy

355. The 3 types of levers The 3 types of levers - - - Copyright © 2010 Ryan P. Murphy

356. The 3 types of levers The 3 types of levers - - - Copyright © 2010 Ryan P. Murphy

357. The 3 types of levers The 3 types of levers - - - Copyright © 2010 Ryan P. Murphy

358. The 3 types of levers The 3 types of levers - - - Copyright © 2010 Ryan P. Murphy

359. Which is a first, second, and third class lever.? –Please put your finger in the air when the square lights up.

360. Which is a first, second, and third class lever.? –Please put your finger in the air when the square lights up.

362. You can now add text to the white space and neatly color the pictures to these parts.

363. Discuss the bungee jumping egg experience mgh Energy Ability to do work To cause something to change move or directions Energy cannot be created or destroyed, but transferred from one form to another. Discuss ME

364. Discuss the bungee jumping egg experience mgh Energy Ability to do work To cause something to change move or directions Energy cannot be created or destroyed, but transferred from one form to another. Discuss ME

365. Discuss the bungee jumping egg experience mgh Energy Ability to do work To cause something to change move or directions Energy cannot be created or destroyed, but transferred from one form to another. Discuss ME

366. Discuss the bungee jumping egg experience mgh Energy Ability to do work To cause something to change move or directions Energy cannot be created or destroyed, but transferred from one form to another. Discuss ME

367. Discuss the bungee jumping egg experience mgh Energy Ability to do work To cause something to change move or directions Energy cannot be created or destroyed, but transferred from one form to another. Discuss ME

368. Discuss the bungee jumping egg experience mgh Energy Ability to do work To cause something to change move or directions Energy cannot be created or destroyed, but transferred from one form to another. Discuss ME

369. Discuss the bungee jumping egg experience mgh Energy Ability to do work To cause something to change move or directions Energy cannot be created or destroyed, but transferred from one form to another. Discuss ME

370. Discuss the bungee jumping egg experience mgh Energy Ability to do work To cause something to change move or directions Energy cannot be created or destroyed, but transferred from one form to another. Discuss ME

371. Discuss the bungee jumping egg experience mgh Energy Ability to do work To cause something to change move or directions Energy cannot be created or destroyed, but transferred from one form to another. Discuss ME

372. Discuss the bungee jumping egg experience mgh Energy Ability to do work To cause something to change move or directions Energy cannot be created or destroyed, but transferred from one form to another. Discuss ME

374. This PowerPoint is one small part of my Laws of Motion and Simple Machines Unit This unit includes… A 3 Part 1,500+ Slide PowerPoint 15 Page bundled homework package and 11 pages of units notes that chronologically follow the PowerPoint 2 PowerPoint review games, 20+ Videos / Links, rubrics, games, activity sheets, and more. http://www.sciencepowerpoint.com/Newtons_La ws_Motion_Machines_Unit.htmlhttp://www.sciencepowerpoint.com/Newtons_La ws_Motion_Machines_Unit.html

375. Purchase the entire four curriculum, 35,000 slides, hundreds of pages of homework, lesson notes, review games, and much more. http://www.sciencepowerpoint.com/Newtons_Laws _Motion_Machines_Unit.html Please feel free to contact me with any questions you may have. Thanks again for your interest in this curriculum. Sincerely, Ryan Murphy M.Ed www.sciencepowerpoint@gmail.com