Pulley Breanna and Deja March 2, 2012 Miss Braathen
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Pulley
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Inventor Archimedes invented the pulley. He invented the pulley
so you dont need to apply so much force to move something.
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Pulley Here we have a crane, well, and a boat with a pulley on
the top.
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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.
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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.
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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
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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
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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
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Screw
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S c r e w s A screw holds things together.
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Screw A screw is a screw A is an inclined plain A screw is
sharp A screw causes flat tires
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Screws A screw is an inclined plane.
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Screw Screws Bolts Inclined planes
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Screws The inclined plane allows the screw to move itself when
rotated.
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Screw It holds wood together It helps build houses It takes
place of nails It splits wood It strips itself It causes flat
tires
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Wedge Lindsay, Tyler 3/2/12
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Wedge
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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.
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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.
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Wedge The inventor of the wedge is unknown.
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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.
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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.
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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
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Mackenzie, Alle, Chris 3/2/12
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Archimede s is the inventor of the lever.
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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.
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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.
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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.
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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
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Levers What are two levers? Who invented the lever? How do
levers help us?
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THE LEVER BY: STEVEN AND LANCE MISS BRAATHEN 3/2/12
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THE LEVER
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ARCHIMEDES ARCHIMEDES is the inventor of the lever and many
people believe that he was born 287 BC and died 212 BC.
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HOW THE LEVER WORKS I believe an example of a lever is a
hammer, a wrench, an arm and a seesaw.
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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.
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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.
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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.
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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.
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The Wedge BY: Scott and Manny 3/2/12 Miss Braathen
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The wedge
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The Wedge The caveman was the person that invented the wedge
and this was around 7,000 B.C.
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The wedge Some examples of wedges are axes, wood splitters, and
swords.
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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.
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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.
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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.
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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?
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The Wheel Axle Rylee and Ryan 3/2/12 Miss Braathen
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Wheel and Axle Pictures
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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.
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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
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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.
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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.
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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.
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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?
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Incline d planes By Heaven Tyra-Davis and karson mock
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This is what an inclined plane looks like
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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
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Real life examples Real life examples are a high way you can
drive up and down, a hill or a ramp can help.
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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
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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.
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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
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Questions Are incline plane good spot to skate on? Can they be
in water? Are they always big?
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The Pulley By: Tanner Balk and Robin Schneider Miss Braathens
class 3-2-12
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The Pulley
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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.
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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.
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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.
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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.
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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.
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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.
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Austin Sullivan & Nicholas Olson
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Wheel and Axle
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Wheel and Axle The wheel and axle was invented by the Sumerians
in 8000 B.C.
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Wheel and Axle Car. Motorcycle. Monster truck. Bike.
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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.
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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.
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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.
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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?