Teaching Date and
Time Quarter First ( Physics)
DAY: Tuesday
I. OBJECTIVES
1. Define kinetic energy.
2.Relate the speed and position of object to the amount of energy possessed by a body.
3. Calculate the kinetic energy of a moving body.
A. Content Standards
The learner demonstrates understanding of work using constant force, power, gravitational potential energy, kinetic energy, and elastic potential energy
B. Performance Standards C.
Learning Competencies / Objectives Write the LC code for each
(S8FE-Id--22) (S8FE-Id-23)
Differentiate potential and kinetic energy.
Relate speed and position of object to the amount of energy possessed by a body.
Objectives:
1. Define kinetic energy.
2.Relate the speed and position of object to the amount of energy possessed by a body.
3. Calculate the kinetic energy of a moving body
II. CONTENT Module II: WORK, POWER AND ENERGY
Lesson 12: KINETIC ENERGY III. LEARNING RESOURCES
A. References
1. Teacher's Guide Pages 21
2. Learner's Materials Pages 26-28
3. Textbook Pages
4. Additional Materials from Learning
Resource (LR) portal
B. Other Learning Resource Lesson Guide Grade 8 First Quarter, pp 43-44
IV. PROCEDURES
A. Reviewing previous lesson or presenting the
new lesson How will you define power?
B. Establishing a purpose for the Lesson
Picture Analysis:
The student will look at the picture presented by the teacher.
C. Presenting examples / instances of the new lesson
What kind of energy does the boy possess? Explain your answer.
D. Discussing new concepts and practicing new skills #1
Do the Activity on Exploring kinetic energy with ramps, Lesson Guide Grade 8 First Quarter, pp 43-44
E.
Discussing new concepts and practicing new skills #2
Analysis:
1. Which car will run fastest? Why do you think so?
2. How does the amount of energy possessed by each car affect its speed?
F. Developing mastery
(Leads to Formative Assessment 3) Discuss the answers in the activity given.
G. Finding practical applications of concepts and skills in daily living
How do kinetic energy applies to everyday life?
1.a running roller coaster
2.your jaw when you are chewing
3.when playing billiard, the energy is transferred from the stick to a
ball
4.A Slinky moving down a set of steps 5.Snow skis gliding down the mountain 6.Gas molecules moving around in a room
H. Making generalizations and abstractions about the lesson
The kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.
Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.
If the masses {weights} are equal, the body with the greatest velocity {speed} would have the highest kinetic energy. If the velocities are equal, the body with the greatest mass would have the highest kinetic energy.
The kinetic energy of an object is given by the equation:
KE = 1/2mv2, where m is the mass of the object and v is its velocity.
The kinetic energy is proportional to the mass of the object.
According to Newton’s second law, F = ma, an object is accelerated with a constant acceleration of a constant net force is exerted on it. The work done on object is given by:
W = F. d. Thus the work done is W = (ma)d. Assume the object was originally at rest, Vi = 0. As it accelerates, v2 = 2ad, or d = v2 / 2a, since a is constant.
Therefore: W = mad
= ma (v2 / 2a)
= 1/2mv2
I. Evaluating Learning
Assessment:
Tell whether each statement is true or false:
1. When work that is done on a body increases its
velocity, then, there is an increase in the kinetic energy of the body.
2. The kinetic energy of a more massive object at rest is greater than that of a less massive moving object.
3. If the velocity of a moving object is doubled, its kinetic energy is also doubled.
4. The unit of kinetic energy is the same as the unit of work.
5. The unit kg m2/s2 is also a unit of energy.
J. Additional activities for application or remediation
What is potential energy?
V. REMARKS
VI. REFLECTION
A. No. of learners who earned 80% in the evaluation
B. No. of learners who require additional activities
for remediation who scored below 80%
C. Did the remedial lessons work? No. of learners who have caught up with the lesson
D. No. of learners who continue to require
remediation
E. Which of my teaching strategies worked well?
Why did these worked?
F. What difficulties did I encounter which my
principal or supervisor can help me solve?
G. What innovation or localized materials did I Use or discover which I wish to share with other teachers?
GRADES 1 to 12 School Grade Level Grade 8
Daily Lesson Log Teacher Learning Area Science
Teaching Date and
Time Quarter First (Physics)
DAY:
I. OBJECTIVES
A. Content Standards
The learner demonstrates understanding of work using constant force power, gravitational potential energy, kinetic energy, and elastic potential energy
B. Performance Standards C.
Learning Competencies / Objectives Write the LC code for each
(S8FE-Id--22) (S8FE-Id-23)
Differentiate potential and kinetic energy.
Relate speed and position of object to the amount of energy possessed by a body.
Objectives:
1. State the meaning of potential energy.
2. Relate potential energy to work
3. Calculate the change in potential energy of a body
II. CONTENT Module II : WORK, POWER AND ENERGY
Lesson 13: POTENTIAL ENERGY
III. LEARNING RESOURCES
A. References
1. Teacher's Guide Pages 21-22
2. Learner's Materials Pages 28-33
3. Textbook Pages
4. Additional Materials from Learning
Resource (LR) portal