Page 203 - SK Year 6 Science DLP

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MACHINES
MACHINES
MESIN
Wedge

A wedge is a simple machine that has one or two inclined
planes with a sharp edge. A wedge is used to split, cut or
move, hold, and stop objects. Describe the uses of a wedge
as shown in the pictures below.

hoe door stopper nail

How useful are wedges in your
daily life? Give one example and
explain its use.
How does a tooth act
as a wedge?
Gear

A gear is a simple machine that consists of a wheel or
cylinder with teeth. Gears function to change the direction
and speed of the movement of other components in
a more complex machine. Explain the use of gears as
shown in the pictures below.

gear
gear
cog cylinder

gear egg beater
wristwatch
correction
tape What are other examples on the usage
of gears in your daily life? Name one
example and explain its use.

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