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SLC Kiki Term 3

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kiki Huang

on 8 September 2010

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Transcript of SLC Kiki Term 3

KiKi's SLC UOI Presentation

Central Idea : Human understand and use simple
machines to make live easier. How I under stand the Central Idea? What make our live easier are
the "Seven Simple Machines".[continue
on the next one] The Seven Simple Machines: That talk about the seven simple
machines,we'll talk about "Wheel"
first. 1. Wheel: Wheel make our live easier because
we travel with car and if the car did
not have any wheel then the car couldn't
move around.[The wheel make the car to
travel around.Go to 2.lever.]
The Seven Simple
Machines list: 1.Wheel and axel
2.lever
3.pulley
4.screw
5.inclinded plane
6.wedge
7.gears 2. Lever Lever make our live easier because
the lever could lift the things up
as you do not have to use much effot.
[Go to the 3.Pulley.] 3. Pulley Pulley make our live easier because
it help us to lift heavy thing without
much forces.If there are no pulley you
use a lot of forces to lift the heavy
thing.[Go to 4.Screw.] 4. Screw Screw make live easier because
screw something to stay together
and stable.But if there are no
screw,everything will fall off
into pieces.So it is very useful.
[Go to 5.Inclinded plane.] 5. Inclinded plane Inclined plane make our lives easier because
if you have a inclined plane you could push
the heavy thing up somewhere with less forces.
If there are no inclined plane, you will have
to use more forces to push/bring anything up
somewhere.[Go to 6.Wedge.] 6. Wedge There are wedges I think because
it help the door don't move and to
stay open, if there are no wedge
the door wouldn't stay open.
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