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FORCES
MS MAHFUDZAH BINTI ZAINOL
Science year 6
Chapter 2By
t
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ALL ABOUT FORCES
Forces exist allaround us all thetime
Force act on allobjects, like thiscar.
Forces are needed tomake the car: Speed up
Slow down Change direction Stay on the ground
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WHAT IS FORCE?
A force is a push orpull
Lifting, stretching,
twisting, pressing
Cannot be seen. Itseffects can be seen and
felt
Has magnitude (value)and direction
Jeremy Ernst Animator Rigger - Push and
Pull Animation
http://gambar/Jeremy%20Ernst%20Animator%20Rigger%20-%20Push%20and%20Pull%20Animation.flvhttp://gambar/Jeremy%20Ernst%20Animator%20Rigger%20-%20Push%20and%20Pull%20Animation.flvhttp://gambar/Jeremy%20Ernst%20Animator%20Rigger%20-%20Push%20and%20Pull%20Animation.flvhttp://gambar/Jeremy%20Ernst%20Animator%20Rigger%20-%20Push%20and%20Pull%20Animation.flvhttp://gambar/Jeremy%20Ernst%20Animator%20Rigger%20-%20Push%20and%20Pull%20Animation.flvhttp://gambar/Jeremy%20Ernst%20Animator%20Rigger%20-%20Push%20and%20Pull%20Animation.flvhttp://gambar/Jeremy%20Ernst%20Animator%20Rigger%20-%20Push%20and%20Pull%20Animation.flv7/31/2019 kpli assgment TMK
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GRAVITY
Why do we stay on groundand not float off?
why do objects drop
straight down when welet go of them?
its all due to the forceof gravity
Click one of the smiley
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ALL ABOUT FORCES
There are many differenttypes of forces
Gravity is the forcethat pulls objects
towards the Earth.
GENTINGHIGHLAND
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GRAVITY
In this tightrope act, what happens ifthe performer falls?
Performer floats
Performer goes upwards
Performer drops to the ground
Now test your prediction by clicking the performer
to knock him off from the rope
Gravity pull the performerto the ground
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Friction
Friction is anotherforce that is all
around us
Friction occurswhenever twoobjects are in
contact with eachother
For example, there isfriction between
the shoes and thefloor surface
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Frictional force
It causes movingobjects to slow
down. It is aresistive force.
If theengine is turned off,friction slows the
train down until itstops.
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Friction
The amount offriction depends onthe roughness of
the surfaces incontact
There is morefriction if thesurfaces are
rougher. There isless friction if thesurfaces aresmoother
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Frictional force
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ALL ABOUT FORCES
Magnetic forces exist betweenmagnets and other magnets,and also between magnets
and magnetic materials. The
force can be attraction orrepulsion
Magnetic forces are
often very strong.
They can be used to lock
doors and gates.
N S N S
N S S N
Attracts
Repels
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Summary
Between any 2 objects there is a force of
Force is
Gravity is a force that
objects towards
the earth
attraction
Push or pull
pull
stretching magnetism
surface
Changecolor
push
twistingPlease click
nextWrong, tryagain
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Summary
Friction acts whenever two surfaces are in
Friction forces tend tomoving objects.
Smoother contact surfacesthe friction force
water contact trouble
Slow down Speed up
Blow up
reduce stopincrease
Wrong try againThats it..now
press next
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ALL ABOUT FORCES
WELL DONE
You have completed thismodule
Again
Back
- replay this whole module
-replay the last scene
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