1. Simple Machines
Miss braathen’s Class

2. Breanna and Deja March 2, 2012 Miss Braathen
Pulley
Breanna and Deja
March 2, 2012
Miss Braathen

3. Pulley

4. Inventor
Archimedes invented the pulley. He invented the pulley so you don’t need to apply so much force to move something.

5. Pulley
Here we have a crane, well, and a boat with a pulley on the top.

6. 3 Pros. And 3 Cons. About the Pulley
The pulley is good for its help throughout our lives.
The pulley helps us carry heavy things.
The pulley helps us to not apply more force to move something.
A bad thing is there should be a automatic pulley.
It would still be hard to pull something if we did not have a pulley.
It should be easer to pull the rope or chain.

7. How Life Would be Different Without The Pulley
Life would be different without a pulley because we would have to apply more force to move something.

8. Pulley Questions 1.Why is there a pulley?
Answer: so it will be easer to pull something
2.Why is the pulley easy to use?
Answer: so we can apply less force to pull something
3.What types of pulleys are there?
Answer: a crane, “well”, boat, and a flagpole

9. 3 Questions to Answer Who invented the pulley? Answer: Archimedes
2. Why did a person invent the pulley?
Answer: so you don’t have to apply so much force to move something
3. How does the pulley work?
Answer : a wheel and a rope, the rope around the wheel and it applies force to what the pulley is moving

10. By: Liz Curtin and Clayton Johnston 3/2/12
Screws
By: Liz Curtin and Clayton Johnston
3/2/12

11. Screw

12. A screw holds things together.
Screws
A screw holds things together.

13. Screw A screw is a screw A screw is an inclined plain A screw is sharp
A screw causes flat tires

14. Screws
A screw is an inclined plane.

15. Screw
Screws
Bolts
Inclined planes

16. Screws
The inclined plane allows the screw to move itself when rotated.

17. Screw It holds wood together It helps build houses
It takes place of nails
It splits wood
It strips itself
It causes flat tires

18. Wedge
Lindsay , Tyler
3/2/12

19. Wedge

20. Wedge
A wedge is a piece of wood or metal thick at one end and sloping to a thin edge at the other. If you look on the left there is a piece of wood and metal.

21. Wedge
It would be a lot harder without a wedge. It would also take a lot of work. The wedge was first founded in Australia.

22. Wedge
The inventor of the wedge is unknown.

23. 3 pros and 3 cons The wedge is good for many reasons.
#1: Instead of having to lift you can just push.
#2: You can even make a ramp for a bike.
#3:You can even do it with an any hole . Find a stick a stick and put it on the hole.
The bad things are.
#1: You can fall off one.
#2: They can brake if it is to much weight.
#3:Also it can fall if it’s not on right.

24. Wedge
Here is a example. You need a nail, two thick books, and plastic lid. Take the nail and push it through the plastic lid. That is the example.

25. Question Time 1. Is the inventor known or unknown? Answer: Unknown
2. Would life be hard without a wedge?
Answer: It would be hard
3. Where is the wedge found?
Answer: Australia

26. Mackenzie, Alle, Chris 3/2/12
lever
Mackenzie, Alle, Chris
3/2/12

27. lever

28. Lever
Archimedes is the inventor of the lever.

29. Lever
The lever is a helpful tool to use. it also can help by not making things complicated.
The lever is a good tool because it will help you a lot.

30. Lever
Without a lever our life would be different because a lever is a tool that you can use every day. Without it you would have to try to think of a way so you don’t have to do so much work.
Also a lever can be very important because it can help you when you are sick or in the hospital.

31. Levers
Three things I like about it is: you can staple your papers together, you can stop your bike with your brake handle, and also you can open doors with their handles.
Some things I don’t like about it if you use it continuously it might break like a door handle, stapler and finally the brake on your bike.

32. levers Q-what everyday tool has a lever? A-a stapler
Q-who invented the lever ?
A-Archimedes
Q-how do they help?
A-they can staple our papers, stop us on our bike and we can open and shut doors

33. Levers
What are two levers?
Who invented the lever?
How do levers help us?

34. BY: STEVEN AND LANCE MISS BRAATHEN 3/2/12
THE LEVER
BY: STEVEN AND LANCE
MISS BRAATHEN
3/2/12

35. THE LEVER

36. ARCHIMEDES
ARCHIMEDES is the inventor of the lever and many people believe that he was born 287 BC and died 212 BC.

37. HOW THE LEVER WORKS
I believe an example of a lever is a hammer, a wrench, an arm and a seesaw.

38. LIFE WITHOUT THE LEVER
Life would be different without this machine. we wouldn’t be able to lift things as easy as we can now. and we would be more tired and it would take a lot more effort.

39. 3PROS AND 3CONS ON THE LEVER
3 PROS: It helps us move stuff, it makes things easier for us, and different examples are a see-saw and a tank barrel.
3 CONS: It might take up time, It will take up space, And it might break.

40. Questions and answers
What are levers? Levers are things that help you lift other things.
When was the lever created? No one really knows.
What is the lever used for? The lever is used for lifting things.

41. Questions Who invented the lever? What are ways the lever can help us?
What are some reasons the lever will not be good for use.

42. BY: Scott and Manny 3/2/12 Miss Braathen
The Wedge
BY: Scott and Manny
3/2/12
Miss Braathen

43. The wedge

44. The Wedge
The caveman was the person that invented the wedge and this was around 7,000 B.C.

45. The wedge
Some examples of wedges are axes, wood splitters, and swords.

46. The Wedge The wedge helps people cut wood like the axe cuts the wood.
The wedge is one of the best inventions.
Also a wedge makes a flat surface of the wood.

47. The Wedge
A reason the wedge is a good tool is because you can split wood with it. A reason the wedge is not a good tool is because it is heavy so it makes it hard to move for someone that is small.

48. Wedge What is the wedge used for? It is used for splitting wood.
Why did they invent the wedge?
To help split things.
What year do you think the wedge was created?
It was around 700 B.C.

49. Wedge Do you think the wedge is a good tool?
Were the cavemen actually intelligent?
Do you think the wedge has inclined plane involved in it?

50. Rylee and Ryan 3/2/12 Miss Braathen
The Wheel Axle
Rylee and Ryan
3/2/12
Miss Braathen

51. Wheel and Axle Pictures

52. Wheel Axle
The person who invented the Wheel and Axle is unknown because it was such a long time ago.
It is said to have been around 8,000 B.C.

53. 3 pros and 3 cons
Pros: The Wheel and Axle helps the earth because it is not motorized. Easy transportation. Easy to move.
Cons: You could fall. You could get hurt. It could brake.

54. Wheel Axle
Life without the Wheel Axle would be different because we would not have transportation. Also we would not be able to go any where.

55. Wheel and Axle
Some examples of the Wheel and Axle at work are cars, skateboards, and bikes.
They all have long sticks and wheels at each end.
Life would be different without the wheel and axle because we would not have transportation.

56. Questions and Answers What does the wheel and axle do?
The wheel and axle gets us where we need to be.
What does the wheel and axle look like?
The wheel and axle is a long stick with wheels.
Is the wheel and axle helpful to the earth?
Yes because it is not motorized.

57. 3 questions What is the wheel and axle made of?
What things have a wheel and axle?
Why do we need the wheel and axle?

58. Incline d planes
By Heaven Tyra-Davis and karson mock

59. This is what an inclined plane looks like

60. The inventor
A n inclined plane was invented by nature examples are ,a hill , slope, mound, dune. the Egyptian workers
used it to make the pyramids and many other things are neutral inclined planes

61. Real life examples
Real life examples are a high way you can drive up and down, a hill or a ramp can help.

62. Pro and cons of inclined planes
one pro is that it makes it so much easier to make things easy to push or pull
One con is that it is very easy to break

63. An inclined plane is a tilted slope which makes it easer to carry because it is a smaller trip. Life would be different because it would make things harder you lift.

64. Questions Do you think life would be hard without it. yes
Can it be formed from volcanic rock. No it can easily crumble.
Do you think it help on a regular basis. yes

65. Questions Are incline plane good spot to skate on?
Can they be in water?
Are they always big?

66. By: Tanner Balk and Robin Schneider Miss Braathen’s class 3-2-12
The Pulley
By: Tanner Balk and Robin Schneider
Miss Braathen’s class
3-2-12

67. The Pulley

68. The pulley
Galileo was the inventor of the pulley. The pulley was invented 250BC.
Life without the pulley would be hard. It would be hard to lift heavy objects.

69. pulley
Pulleys are often made of a wheel or disk; an axle; and a cable, rope or chain. The wheel or disk is attached to an axle, and the rope, chain or cable is looped around the disk.

70. Q and A Q:Is a pulley easy to make?
Q:Why was the pulley invented?
A: To make lifting objects easier.
Q: What does a cone pulley allow the user to do?
A: It allows the user to slide the belt for the pulley up or down the cone to use more or less force to lift the object.
Q:Is a pulley easy to make?
A: Yes , it is only a belt and a wheel and axle.

71. Pulley
A block-and-tackle is a type of pulley system that contains a row of pulleys attached to a rope structure, according to the Microsoft Encarta Encyclopedia. A chain hoist is a pulley system that is connected by a group of chains, which people used to move objects upward.

72. Pros and Cons Pro: It is easier to lift objects.
Con: The rope can snap and hurt you badly.
Pro: a cone pulley is easier to use.
Con: The belt or chain can some times get stuck on the end of the cone.
Pro: The pulley is easy to make and it is portable.
Con: Not all pulleys are easy to make.

73. History of the Pulley
Objects similar to pulleys, which contains vines or rope, are believed to have been used by the Mesopotamians as early as 1500 B.C. to lift water buckets, according to the Microsoft Encarta Encyclopedia. During the 12th century, people used pulleys to build cathedrals, according to the University of Nebraska Lincoln.

74. Austin Sullivan & Nicholas Olson
Wheel and Axle
Austin Sullivan & Nicholas Olson

75. Wheel and Axle

76. Wheel and Axle
The wheel and axle was invented by the Sumerians in 8000 B.C.

77. Wheel and Axle
Car.
Motorcycle.
Monster truck.
Bike.

78. Wheel and Axle
How life would be different without these simple machine’s is that cars wouldn’t run, or be invented.

79. Good And Bad It gave us cars. It gives us transportation.
It lets save energy.
Gas prices are going up.

80. Wheel and Axle Who invented the wheel?
What was the name for the first one?
Where was the wheel invented?
Unknown. Roller. Asia8,000B.C.

81. Did You Know How many wheels did the roller have?
What did the first wheel look like?
What was the wheel made of back than?

82. Thank you for watching