Forces exist all around us and act on all objects. A force is a push or pull that cannot be seen but its effects can be felt. Gravity is the force that pulls objects toward the Earth. Friction is a force that occurs when two objects are in contact with each other and causes moving objects to slow down. Magnetic forces can cause attraction or repulsion between magnets and magnetic materials.

1. FORCES
Science year 6
Chapter 2
By
• MS MAHFUDZAH BINTI ZAINOL
xt

2. ALL ABOUT FORCES
Forces exist all • Forces are needed to
around us all the make the car:
time – Speed up
– Slow down
– Change direction
Force act on all – Stay on the ground
objects, like this
car.

3. WHAT IS FORCE?
A force is a push or
pull
Lifting, stretching,
twisting, pressing
Cannot be seen. Its
effects can be seen and
felt
Jeremy Ernst Animator Rigger - Push and Pu
Has magnitude (value)
and direction

4. GRAVITY
Why do we stay on ground
and not float off?
why do objects drop
straight down when we
let go of them?
Click one of the smiley
it’s all due to the force
of gravity

5. ALL ABOUT FORCES
GENTING
HIGHLAND
There are many different
types of forces
Gravity is the force
that pulls objects
towards the Earth.

6. GRAVITY
In this tightrope act, what happens if
the performer falls?
Performer floats
Performer goes upwards
Performer drops to the ground
Gravity pull the performer
to the ground
Now test your prediction by clicking the performer
to knock him off from the rope

7. Friction
Friction is another
force that is all For example, there is
around us friction between
the shoes and the
Friction occurs floor surface
whenever two
objects are in
contact with each
other

8. Frictional force
If the
It causes moving engine is turned off,
objects to slow friction slows the
down. It is a train down until it
resistive force. stops.

9. Friction
The amount of There is more
friction depends on friction if the
the roughness of surfaces are
the surfaces in rougher. There is
contact less friction if the
surfaces are
smoother

10. Frictional force

11. ALL ABOUT FORCES
Magnetic forces exist between
N S N S
magnets and other magnets,
and also between magnets Attracts
and magnetic materials. The
force can be attraction or N S S N
repulsion
Repels
Magnetic forces are
often very strong.
They can be used to lock
doors and gates.

12. Summary
Between any 2 objects there is a force of
attraction stretching magnetism
Force is Change color Push or pull
surface
Gravity is a force that push
twisting pull objects towards
Please click
the earth Wrong, try
next
again

13. Summary
Friction acts whenever two surfaces are in
water contact trouble
Friction forces tend to Slow down Speed up
Blow up moving objects.
Smoother contact surfaces reduce stop
increase the friction force
That’s it..now Wrong… try again
press next

14. ALL ABOUT FORCES
WELL DONE…
You have completed this
module
Again - replay this whole module
Back -replay the last scene