A PREPARED 7-E’s DETAILED LESSON P LAN IN PHYSICAL SCIENCES I. OBJECTIVES A. Content Standards B. Performance Standards C. Learning Competencies/ Objectives Write the LC code for each II. CONTENT Demonstrates understanding of projectile motion, impulse and momentum, and conservation of linear momentum • Advocates road safety through various media focusing on vehicular collisions. • Proposes ways to enhance sports related to projectile motion. a. Understand the concept of impulse. b. Perform an activity showing the factors that affect the force of impact on moving objects. c. Relate the concept of impulse in daily life experience. Impulse III. LEARNING RESOURCES A. References 1. Teacher’s Guide pages pp.186-187 2. Learners Materials pp.261-264 pages 3. Internet Sources Physics Classroom (2019) “Impulse and Momentum Connection” Retrieved from:https://www.physicsclass room.com/class/momentum/L esson1/Momentum-Impulse 4. Additional Resources IV. PROCEDURES A. Daily Routine Teachers Activity Students Activity Prayer I would like you to stand up first. ___________ kindly lead the prayer.” Greetings Good Morning Class!” Our Father who art in heaven, hallowed be thy name. thy kingdom come, thy will be done, On Earth as it is in heaven. Give us this day our daily bread. And forgive us our trespasses, as we forgive those who trespass against us. And lead us not into temptation, but deliver us from evil. Amen. “Good Morning Sir!” Classroom Management Before you take your seat, (The students will pick up kindly pick up the pieces of the pieces of trash and trash and arrange your chairs arrange their chairs) properly. Make sure to clean your area.” Thank you very much class, (The students will take you may now take your seat. “ their seats.) Checking of Attendance “Ms. Secretary is there any “Sir, I’m glad to say that absentees for today?” there are no absentees for today”. It’s quite good to hear that “You’re welcome Sir!” everyone is present today. Thank you very much A. Elicit Last Meeting, we have “Sir, last meeting we were successfully learned about a able discuss about certain topic. So, who among Momentum!” you class can still remember our past lesson? Yes____________?” “Very good ___________! that’s correct!” For me to know if you’ve learned successfully from our previous, I prepared here a game so called as “Word War”. “Ready Class, this is Word War 1” “Unbalanced Force” “Very Good” “Ready Class, this is Word War 2” “Velocity” “Nice Try” “Ready Class, this is Word War 3” “Masses” Excellent! “Ready Class, this is Word War 4” “Motion” “Your Correct” “Ready Class, this is Word War 5” “Newton” B. Engage “Pull Me Closer” (Have students stand up and (The students will look for choose their partner.) their partner) You are about to play a game called “pull me closer”. “You have to close your feet and hold your partner’s hand. Afterwards you have to pull each other’s hand as fast and hard as you can until you fully beat your partner towards you.” (The students will close their feet and hold the hand of each other’s partner) (After performing the game) “How do you feel while pulling “Sir we feel pressured as your partner’s hand towards we pull the hand of our you?” partner” Yes__________? Very Good! “What did you do to be able to “Sir we exerted more pull your partner towards effort in order for us to you?” beat our partner” Yes__________? Brilliant idea! “What happened when you “Sir we immediately immediately pull your collide with our partner” partner’s hand? “ Yes__________? Thank you, that’s a nice observation! “Based on the game that you “Sir, I think our topic for played, what do you think is today is all about our topic for today?” impulse!” Excellent! (The teacher will present a slide containing the title of the topic) “Our topic for today is all about impulse!” “The game that you did a while ago is connected to the topic that we will be discussing today. C. Explore “For you to know further more regarding this topic let’s have first our activity. “ In this activity, you are going play Egg Volleyball. “ Egg Volleyball “Before we proceed with our “Objective” activity, let’s have first our a. Identify the factors that affect the force of objective. impact on moving Who wants to read? objects. Yes_____? “Thank you!” “Then we also have our “Materials” materials to be used. Who 1. Raw Eggs wants to read? 2. Clear Plastic Bags Yes_________________?” 3. Piece of close/large handkerchief “Thank you!” “Lastly, our precautionary “Precautionary Measure” measure. Who would like to 1. Always watch your read?” foot steps as you go down the stairs. 2. Be careful on running and walking during the actual game. “Thank You! “ “Last time, I was able to group (The students will proceed you into six groups. You may to their respective groups) now proceed to your respective groups. “Now for our activity, choose (The group will choose two pairs on your group who one pair on their group) will play the game.” Now, this is how we are going to play the game. Every two pairs of each group will be going to toss and catch the egg, and you are about to move one step backward after you toss or catch. The group/groups to maintain their egg not broken will be declared as the winner. Did you understand? (The groups will now start the game) (After playing Egg Volleyball) Class, this time you have to proceed to your respective groups and answer the following guide questions written in your activity sheets.” (The teacher will give the (The leaders of each materials to every group.) group will receive the materials to be used) “Make sure to have your leader who will present your work and time keeper to monitor your time. Don’t forget to raise your hand if you want to ask questions. “ D. Explain (Presentation of the group work) “It seems that everybody is done answering the guide questions. Each group kindly post your work on the board. Leaders please be ready to explain your answers to your classmates. “ “The Group 1 will be the one to present first their work followed by group two, three and four. “ “Okay let’s start from group 1, (The group one please present your work.” present their work) will “Very Good Group One!” “Okay next presenter is group (The group two 2. Group 2 show us your present their work) work.” will Spectacular! “Next presenter is Group 3, (The group three show us what you got!” present their work) will “Good Job!” “Lastly, we have group 4, (The group one kindly present your work.’” present their work) “Nice presentation!” (Checking of group work) “Okay class, let us now check the answers for each group. “ 1. Was the handkerchief able to protect the egg from breaking? Why? Why not? 2. Why would an egg break immediately when it hits the ground? 3. How was the impact force lessened by the use of the handkerchief? 4. Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg. will E. Elaborate (The teacher will present a slide) Based on the pictures posted on the slide what can you notice on the eggs?” “What did you observe “On the first picture, the between the two pictures on egg was cracked while in the other picture, the egg the slide?” didn’t crack. “ “What do you observe about their time? Do they have the same time of impact? Which one has the longer time? “ “It didn’t have the same time of impact. On the first picture, the egg had lesser time of impact than the other picture wherein the egg didn’t not crack. “ “Very Good! That was a nice observation! So, you just said a while ago that the cracked egg had shorter time than the other picture which the egg didn’t crack. “ “What about the force of impact? Do they have the same force of impact? Which has t \he greater force of impact?” “It also didn’t have the same impact force. On the first picture where the egg was cracked, it had a greater force of impact than the impact force of the other picture where the egg didn’t crack. “ “Very Good, the egg was cracked because it had a greater impact Force compared to the other one which has less impact Force where the egg didn’t crack. So, what can you conclude in “I conclude that the the difference between the greater the time of impart the lesser the Force and two? the lesser the time of impact the greater the Force of impact. “ Very Good! This means that the egg that was cracked possessed lesser time of impact and great F. Elaborate What do you think does “Impulse is the product of impulse refers to? Force and time of an object” Very Good! Impulse refers to the product of Force and time. “Now here’s for you to remember, that a big “t” means a small “F” and a small “t” means a big “F. Did you understand? “Class, can you think of “Yes Sir” examples impulse that you have experienced already? “ (The teacher will present a sample of a car with air bag) “Who among here owns a (The students will raise car?” their hand) “What do you think is on the “Sir, it’s an air bag” car? Very Good! This air bag somehow minimizes the Force of impact because the air bag increases the time of impact. That’s why drivers, experienced severe injury due because of not using air bag in their car. “ “Very Good! That concept of impulse!” is the “Class, did you learn something? What have you learned from the lesson?” “Sir we have learned that impulse is the product of force and time. The greater the time of impact, the lesser the Force and the smaller the time of impact, the greater the Force of impact. G. Evaluate Very Good! Its good thing that you’ve learned something in this topic. Quiz ¼ sheet of paper 1. It is defined as the product of force and time. a. Impulse b. Force b. c. speed d. Motion 2. What happened when there is an increase on time of impulse? a. The force will increase b. The Motion will stop c. The force of impact will increase d. The momentum will continue 3. What happened when there is a decrease of Force of impact? a. There is an increase of momentum b. There is an increase of time of impact c. The mass of an object will decrease d. There will be no motion. 4. Which among the following sports is an application of impulse? a. Gymnastic b. Chess b. Boxing d. dance 5. Which among the following statement is true? a. Force is equal to time b. Time is related to motion c. Impulse has no motion d. The product of Force and time is impulse H. Extend Assignment 1. What is required for the momentum of an object to change? 2. How can we conserve the momentum of an object? 3. Why do we say that the momentum of an object is conserved? References: Physics Classroom (2019) “Impulse and Momentum Connection” Retrieved from https://www.physicsclassroom .com/class/momentum/Lesso n-1/Momentum-Impulse Alvarez et.al. (2015) “Science Teacher’s Guide 9. Department of Education. pp. 186-187 V. REMARKS VI. REFLECTION A. Number of learners who earned 80% in the evaluation B. Number of learners who require additional activities for recommendation who scored below 80% C. Did the remedial lesson work No. of learners who have caught up with the lesson? D. Number of learners who continue to require remediation. E. Which of my teaching strategies worked well? Why did these works? F. What difficulties did I encounter which my principal or supervisor can help me solve? G. What innovation or localize materials did I use or discover which I wish to share with other teachers? References: Physics Classroom (2019) “Impulse and Momentum Connection” Retrieved from https://www.physicsclassroom.com/class/momentum/Lesson-1/Momentum-Impulse Alvarez et.al. (2015) “Science Teacher’s Guide 9. Department of Education. pp. 186-187 PREPARED BY: Mark Lester S. Escabarte Bachelor of Secondary Education Major in Physical Sciences