Science 8 Quarter 1 Week 1 FORCES

2. FORCES
SCIENCE 8 Quarter 1 – Week 1

3. YES

4. YES

5. YES

7. Push and Pull applied to an
object
Influence that changes the
motion of an object.
 Most of the motions or movements we often see
or do everyday are caused primarily by force.

8. Activity 2:
1. How can we make the toy
car move?
2. What will happen if the toy
car is pushed to the right?
By pushing or pulling the toy
car.
The toy car will move in the same
direction as the force.

9. 3. How do we stop the toy
car from moving?
By applying force opposite to
the direction it is going.
 We can therefore conclude that force can make
a toy car or any object accelerate or stop.

10. Does force
always
affect an
object to
move?

12. MAGNITUDE
 Refers to how
strong the
force is.
 Commonly
expressed in
Newton (N)
DIRECTION
 Refers to the
point to where
the object
goes.

13. POINT OF
APPLICATION
 The location
where the
force is
applied
LINE OF
ACTION
 Refers to the
straight line
passing through
the point of
application and is
parallel to the
direction of the
force.

14. 1. CONTACT FORCES
2. NON-CONTACT FORCES

15. Forces where objects
touch or contact with
each other.
CONTACT FORCES

16. Examples:
1. APPLIED
- A force given to a person or object by
another person or object.
F - symbol for applied force and
depending on who or what applies
the force we write it smaller next to
the letter F.

17. FBOY
FBALL

19. 2. FRICTION
- Refers to the force that acts
opposite or against another object.
- causes the movement of an object to
slow down.
FF - symbol of Frictional Force

22. 3. NORMAL FORCE
- Refers to the force that acts
perpendicular to an object.
- causes the movement of an object to
slow down.
FN - symbol of Normal Force

25. 4.TENSION FORCE
- The force applied to a string, rope,
chain, cable and the like.
FT - symbol of Tension Force

26. NORMAL FORCE
Supports an object
as surface resists
compression.
TENSION FORCE
Resists force that
causes objects to
stretch.

29. 1.
Identify the types of forces on the following
pictures.
( APPLIED, FRICTION ,NORMAL, TENSION )
2.

30. 3.
Identify the types of forces on the following
pictures.
( APPLIED, FRICTION ,NORMAL, TENSION )
4.

31. 5.
Identify the types of forces on the following
pictures.
( APPLIED, FRICTION ,NORMAL, TENSION )

32. Key Answers:
NORMAL FORCE APPLIED FORCE

33. APPLIED FORCE
TENSION FORCE

34. FRICTION

35. Keep it
up!
Prepared by: JANICE MIRABUENO MUKOD, SST III
Bartolome Lira Sr. National High School
Maras, Sindangan, Zamboanga del Norte