Describing What Force Is: The learners will identify that forces act between objects and can be measured.

1. SCIENCE 7
THIRD QUARTER- lc 1 (A)
Matatag curriculum
Describing What
a Force Is

2. Describing What a Force Is
CONTENT
The learners learn that Scientists and engineers
analyze forces to predict their effects on
movement.
LEARNING
STANDARD
The learners will identify that forces act between
objects and can be measured.
LEARNING
COMPETENCY

3. By the end of the lesson, the 80 percent of
the learners will be able to:
1. Define what a force is.
2. Explain how forces can affect the motion
of objects.
3. Appreciate the role of forces in everyday
life by answering the reflection of
learning.
OBJECTIVES

4. I. Activating Prior Knowledge
Short Review
Ask students to share their existing knowledge about forces.
Encourage them to provide examples of forces they have
experienced in their daily lives.
I. Activating Prior Knowledge
1. What do you know about
forces?
2.Can you give examples of
forces that you have
experienced in their daily
lives.

5. 1. Define what a force is.
2. Explain how forces can affect the motion of
objects.
3. Appreciate the role of forces in everyday
life by answering the reflection of learning.
B. Establishing Purpose of the Lesson
1. LESSON PURPOSE

6. B. Establishing Purpose of the Lesson
2. Unlocking Content Vocabulary: Match Type Activity
CONTACT
FORCE
NON-CONTACT
FORCE
BALANCED
FORCES
Forces that are equal in strength and
opposite in direction, resulting in no net
force on an object.
Forces that act on an object without
physical contact, such as gravity or
magnetism.
Forces that act on an object through direct
physical contact, such as friction or normal
force.
FORCE
A push or pull that can cause an object to
change its speed, direction, or shape.

7. A force is a push or pull
that can cause an object
to:
 Change its speed
 Change its direction
 Change its shape
Introduction to Forces
C. Developing and Deepening Understanding

8.  Forces are interactions between
objects that can make objects
move, stop moving, or change
the way they are moving.
 Forces can be contact forces,
where objects touch, or non-
contact forces, where objects
don't need to be in direct
contact.
Introduction to Forces
C. Developing and Deepening Understanding

9. Contact Forces
 These are forces that require
direct physical contact
between objects.
Non-Contact Forces
 These are forces that can act
on objects without them being
in direct physical contact.
Types of Forces
C. Developing and Deepening Understanding

10. Contact Forces
Examples include:
 Friction - the force that
opposes the motion
between two surfaces in
contact.
Types of Forces
C. Developing and Deepening Understanding

11. Contact Forces
Examples include:
 Tension - the force
transmitted through a
string, rope, or cable
when it is pulled tight
Types of Forces
C. Developing and Deepening Understanding

12. Contact Forces
Examples include:
 Normal force - the force
exerted perpendicular to
the surface when one
object pushes against
another.
Types of Forces
C. Developing and Deepening Understanding

13. Contact Forces
Examples include:
 Muscular force is the force
exerted by the muscles when
they contract or shorten.
 It is the force that allows us to
move our body parts and
interact with the external
environment.
Types of Forces
C. Developing and Deepening Understanding

14. Non-Contact Forces
Examples include:
 Gravity - the force that attracts objects with
mass towards each other.
 Gravitational force is responsible for bringing
the items we toss into the air back to earth.
When an object is resting on a surface it is
exerting a downward force equal to its weight,
and this downward force is known as
Gravitational force.
Types of Forces
C. Developing and Deepening Understanding

15. Non-Contact Forces
Examples include:
 Electrostatic Force- The
electrostatic force is very similar to
the gravitational force. The
difference here is that gravitational
force acts between masses and
an electrostatic force acts
between two charged bodies.
Types of Forces
C. Developing and Deepening Understanding

16. Direction
 Forces have a specific direction in
which they act, either pushing or
pulling an object. The direction of a
force can change the object's motion.
Magnitude
 The magnitude of a force refers to its
strength or size.
 The greater the magnitude of a force,
the greater its effect on an object.
Force Characteristics
C. Developing and Deepening Understanding

17. Objects Involved
 Forces always involve at least two
objects - the object exerting the
force and the object experiencing
the force.
 The properties of these objects,
such as their mass, surface area,
and texture, can affect the force.
Force Characteristics
C. Developing and Deepening Understanding

18. The force of friction acts in the opposite direction
of an object's motion.
Demonstrating the force characteristics
C. Developing and Deepening Understanding

19. The normal force acts perpendicular to the
surface supporting an object.
Demonstrating the force characteristics
C. Developing and Deepening Understanding

20. The gravitational force between the Earth and an
object is proportional to their masses.
Demonstrating the force characteristics
C. Developing and Deepening Understanding

21. Electromagnetic forces can act over large
distances between charged particles.
Demonstrating the force characteristics
C. Developing and Deepening Understanding

22. LESSON ACTIVITY
Activity 1. What Forces Can Do
Objectives: At the end of the demonstration, the student
should be able to describe what a force is and its effect on
objects.
Materials:
 soft rubber ball
 rubber band
 toy car
C. Developing and Deepening Understanding

23. LESSON ACTIVITY
Activity 1. What Forces Can Do
Procedures:
1. Allow the students to describe the size and shape of the soft
rubber ball. Push the rubber ball against a wall or a table. Ask
them to observe and explain what happened to the ball. Pull the
opposite ends of the rubber band and let them compare and
contrast their observations.
Guide them to answer the following questions:
a. What happened to the ball when you pushed it against a wall or
table?
b. What is applied in the two instances?
C. Developing and Deepening Understanding

24. LESSON ACTIVITY
Activity 1. What Forces Can Do
Procedures:
2. Place the toy car on the table or the floor. Ask the students how
to make the toy car move.
3. Push the toy car. Let the students describe the motion of the toy
car. Ask them how to make the toy car move faster, slower, stop, or
even change direction. Let volunteer students demonstrate what
they think will be able to change the state of motion of the car.
Process their answers.
C. Developing and Deepening Understanding

25. LESSON ACTIVITY
Activity 1. What Forces Can Do
Procedures:
4. Ask the students to summarize their learning through recitation
or
sharing. Highlight that the activities demonstrated what a force can
do or the effect of forces on objects:
● A force can change the size and shape of an object.
● A force can make a stationary object move.
● A force can speed up, slow down, or stop a moving object.
● A force can change the direction of a moving object.
C. Developing and Deepening Understanding

26. LESSON ACTIVITY
Activity 1. What Forces Can Do
Procedures:
5. Ask the students to describe a force and its effect on objects
using their own words.
6. Examples of real-life situations where forces are applied can be
given to students to allow them to identify the effects of these
forces. For example, pushing a cart, kicking a soccer ball, modeling
a lump of clay, the strong wind that moves a sailboat, or kicking
hard an empty can used in a game of Tumbang Preso.
C. Developing and Deepening Understanding

27. D. MAKING GENERALIZATION
Learners’ Takeaways
KWL Chart: Using the
graphic organizer, the
students will answer the
L column or what
they have learned about
the lesson.

28. D. MAKING GENERALIZATION
Reflection on Learning
1. In your own words, how would you define a force?
2. What are the three main effects that a force can have
on an object?
3. Provide an example from your everyday life of a force
causing an object to:
a. Change its speed
b. Change its direction
c. Change its shape

29. E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
_________ 1. A force is defined as a:
a) Push or pull that can cause an object to
change
b) Measurement of an object's mass
c) Invisible field that surrounds all objects
d) None of the above

30. E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
_________ 2. Which of the following is NOT
an effect a force can have on an object?
a) Change its speed
b) Change its direction
c) Change its shape
d) Increase its temperature

31. E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
_________ 3. Which of these is an example
of a contact force?
a) Gravity
b) Friction
c) Electromagnetism
d) Both b and c

32. E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
_________ 4. A non-contact force is a force
that:
a) Requires direct physical contact
between objects
b) Can act on objects without them
touching
c) Only exists in a vacuum
d) None of the above

33. E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
_________ 5. The direction of a force refers
to:
a) How strong the force is
b) The path the object will take
c) The way the force is pushing or pulling
d) The objects involved in the force

34. E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
_________ 6. The magnitude of a force is a
measure of its:
a) Direction
b) Strength
c) Duration
d) Both b and c

35. E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
_________ 7. The properties of the objects
involved in a force, such as their mass and
surface area, can affect:
a) The direction of the force
b) The magnitude of the force
c) Whether the force is contact or non-
contact
d) All of the above

36. E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
_________ 8. Which of the following would
be considered a non-contact force?
a) Tension
b) Normal force
c) Gravitational force
d) Friction

37. E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
_________ 9. If an object's speed increases
due to a force, the force must be:
a) Pushing in the direction of motion
b) Pulling in the direction of motion
c) Perpendicular to the direction of motion
d) Both a and b

38. E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
_________ 10. Understanding the
characteristics of a force is important
because it helps explain:
a) How the force will affect an object's
motion
b) What type of force it is
c) The objects involved in the force
d) All of the above

39. E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
1. a) Push or pull that can cause an object to change
2. d) Increase its temperature
3. b) Friction
4. b) Can act on objects without them touching
5. c) The way the force is pushing or pulling
6. b) Strength
7. d) All of the above
8. c) Gravitational force
9. a) Pushing in the direction of motion
10. d) All of the above
ANSWERS KEY

40. Reference :
•SCIENCE 7 LESSON EXEMPLAR
GCSE Physics Revision “Resolving Forces” Retrieved from
https://www.youtube.com/watch?
v=8RI2_gJy0L0&list=PL9IouNCPbCxUrQkFLoPwB67nDbhw2NfAO&in
dex=6 The Physics Classroom. Accessed from
https://www.physicsclassroom.com/Physics-Interactives/Newtons-
Laws/Free-Body
Diagrams/Free-Body-Diagram-Interactive
Ling, J.S., Sanny, J., & Moebs, B. (2016). University Physics Volume 1.
Retrieved from https://openstax.org/details/books/university
physics-volume-1
Hewitt, P.G. (2014). Conceptual physics. 12th Ed. Pearson
DepEd. (n.d). Project EASE: Integrated Science I Module 7.