Slide 1

Slide 2

Simple Machines Miss braathens Class

Slide 3

Pulley Breanna and Deja March 2, 2012 Miss Braathen

Slide 4

Pulley

Slide 5

Inventor Archimedes invented the pulley. He invented the pulley so you dont need to apply so much force to move something.

Slide 6

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

Slide 7

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 ch ain.

Slide 8

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.

Slide 9

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

Slide 10

3 Questions to Answer 1.Who invented the pulley? Answer: Archimedes 2. Why did a person invent the pulley? Answer: so you dont 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

Slide 11

S c r e w s B y : L i z C u r t i n a n d C l a y t o n J o h n s t o n 3 / 2 / 1 2

Slide 12

Screw

Slide 13

S c r e w s A screw holds things together.

Slide 14

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

Slide 15

Screws A screw is an inclined plane.

Slide 16

Screw Screws Bolts Inclined planes

Slide 17

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

Slide 18

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

Slide 19

Wedge Lindsay, Tyler 3/2/12

Slide 20

Wedge

Slide 21

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.

Slide 22

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.

Slide 23

Wedge The inventor of the wedge is unknown.

Slide 24

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 its not on right.

Slide 25

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.

Slide 26

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

Slide 27

Mackenzie, Alle, Chris 3/2/12

Slide 28

Slide 29

Archimede s is the inventor of the lever.

Slide 30

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.

Slide 31

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 dont 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.

Slide 32

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 dont like about it if you use it continuously it might break like a door handle, stapler and finally the brake on your bike.

Slide 33

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

Slide 34

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

Slide 35

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

Slide 36

THE LEVER

Slide 37

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

Slide 38

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

Slide 39

LIFE WITHOUT THE LEVER Life would be different without this machine. we wouldnt 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.

Slide 40

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.

Slide 41

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.

Slide 42

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.

Slide 43

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

Slide 44

The wedge

Slide 45

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

Slide 46

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

Slide 47

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.

Slide 48

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.

Slide 49

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.

Slide 50

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?

Slide 51

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

Slide 52

Wheel and Axle Pictures

Slide 53

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.

Slide 54

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. 3 pros and 3 cons

Slide 55

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.

Slide 56

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.

Slide 57

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.

Slide 58

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?

Slide 59

Incline d planes By Heaven Tyra-Davis and karson mock

Slide 60

This is what an inclined plane looks like

Slide 61

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

Slide 62

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

Slide 63

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

Slide 64

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.

Slide 65

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

Slide 66

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

Slide 67

The Pulley By: Tanner Balk and Robin Schneider Miss Braathens class 3-2-12

Slide 68

The Pulley

Slide 69

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.

Slide 70

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.

Slide 71

Q and A 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.

Slide 72

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.

Slide 73

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.

Slide 74

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.

Slide 75

Austin Sullivan & Nicholas Olson

Slide 76

Wheel and Axle

Slide 77

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

Slide 78

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

Slide 79

W h e e l a n d A x l e H o w l i f e w o u l d b e d i f f e r e n t w i t h o u t t h e s e s i m p l e m a c h i n e s i s t h a t c a r s w o u l d n t r u n, o r b e i n v e n t e d.

Slide 80

G o o d A n d B a d I t g a v e u s c a r s. I t g i v e s u s t r a n s p o r t a t i o n. I t l e t s s a v e e n e r g y. G a s p r i c e s a r e g o i n g u p.

Slide 81

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.

Slide 82

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?

Slide 83

Thank you for watching