1. APPLICATION
OF FRICTIONAL
FORCE
SH.EFFASH.EFFA

2. LEARNING OUTCOMES:
At the end of this lesson, students will
be able to:
• Explain with examples the existance of
frictional force.
• State the direction of frictional force.
• Carry out an experiment (simulation) to show
how different types of surfaces affect
frictional force.
• Explain the advantages and disadvantages
of friction.
SH.EFFASH.EFFA

3. What is Friction?
SH.EFFASH.EFFA

4. • Friction is a force between two
surfaces that are sliding and they
must in contact with each other.
• Examples:
– The tyre of the lorry
is in contact with the
road.
SH.EFFASH.EFFA

5. • Friction always works in the opposite
direction from the direction of the moving
object.
• Can slows a moving
object down Moving
Friction
SH.EFFASH.EFFA

6. Friction depends on…
Roughness of the surfaces
Force that objects are being
pressed one against the other
or
Weights of the objects
SH.EFFASH.EFFA

7. Simulation
activity
SH.EFFASH.EFFA

8. Advantages of friction
Prevents from slipping while walking
Stops the car from moving
SH.EFFASH.EFFA

9. Climb a tree
Writing on the paper
Holding s spoon and fork for eating
SH.EFFASH.EFFA

10. Friction produces heat.
Friction wears out the rubbing surfaces.
Friction produces noise.
Disadvantages of friction
SH.EFFASH.EFFA

11. Quizzes
time!!!!!
SH.EFFASH.EFFA

12. SH.EFFASH.EFFA