GRADE 7- UNDERSTANDING FORCES AND INTRODUCTION TO FORCES

FOR EDUCATIONAL PURPOSES ONLY

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2. Unit 10: Understanding Forces Grade 7 Science

3. Lesson 1 Introduction to Forces Science

4. ‹#› At the end of this lesson, the learners should be able to do the following: Identify that forces act between objects and can be measured. Understand the basic concept of interaction between objects. (Prerequisite) Learning Competencies

5. ‹#› Learning Targets At the end of this lesson, the learner should be able to do the following: Define force and identify its presence in everyday objects. Understand the basic concept of interaction between objects.

6. Introduction Have you ever wondered why soccer balls curve beautifully in the air when kicked a certain way?

7. Introduction This magic moment in sports is all thanks to forces at work! Understanding forces is not just for athletes; it helps engineers solve problems like designing safer cars or creating amusement park rides that thrill but are safe. Let us kick off our adventure into the world of forces and see how they impact everything from sports to safety.

8. In what ways do forces influence the outcomes of our actions in sports, safety, and daily life, and how can understanding these forces lead to better decisions and innovations? Essential Question

9. Warm-Up Have you played soccer before? Let us try this Science version of field soccer! Force Field Soccer

10. Warm-Up Materials soccer ball or any ball suitable for kicking cones or markers to outline a field and goals a stopwatch or timer (smartphone app is fine) notepad and pen for scoring and observations measuring tape for setting distances

11. Warm-Up Step-by-Step Procedure Arrange cones or markers into two goal areas at opposite ends of your playing area. Divide the students into two teams. Each team takes turns trying to kick the ball into the other team's goal from a designated kickoff spot. After each goal attempt, the opposing team gets a chance to kick from the kickoff spot.

12. Warm-Up Step-by-Step Procedure Record each attempt's outcome (goal scored, missed, or blocked) and the type of kick used. At the end of the game, discuss as a class how different forces (straight vs. curved kicks) affected the ball’s path and the game's outcome.

13. Warm-Up Data Table Type of Kick Outcome (Goal, Miss, Block) Time Ball in Play Distance of Goal Shots

14. Warm-Up How do different applications of forces (straight vs. curved kick) affect the outcome of the game? What strategies can we develop to control the ball’s movement more effectively using our understanding of force? How does understanding the forces at play in a game like this help us in real-life situations or other sports? Reflect & Discuss

15. Learn about It What is Force? Force: invisible strength or power When applied to an object, causes it to start moving stop change its path alter in shape (deform) Measured in newtons using a spring balance

16. Remember A newton is the standard unit of force. It measures the amount of force required to make a 1-kilogram object accelerate at a rate of 1 meter per second squared.

17. Learn about It Examples of Forces in Action

18. Learn about It Demonstrating Contact and Non-Contact Forces How can a force act on these objects?

19. Learn about It Contact or Non-Contact Forces?

20. Learn about It Contact or Non-Contact Forces?

21. Learn about It Contact or Non-Contact Forces?

22. Learn about It Contact or Non-Contact Forces?

23. Learn about It Contact or Non-Contact Forces?

24. Learn about It Scavenger Hunt: Contact and Non-Contact Forces Click! Click! Take a photo inside the school of forces in action that involves contact and non-contact forces!

25. Read the story. Identify and categorize the forces into contact and non-contact.

26. Once upon a sunny day in the small town of Newtonville, there lived a curious and inventive girl named Maya. Maya had a keen interest in how things worked, especially the invisible interactions that moved the world around her. Her adventure began one Saturday morning when she decided to explore these mysterious interactions through a day filled with activities.

27. The story started with Maya riding her bike to the park. As she pedaled harder, she felt the resistance of the air against her face and the solid push from the ground with each pedal stroke. Upon reaching the park, Maya watched a group of kids playing with a frisbee. As the frisbee soared through the air, a sudden gust of wind caught it, guiding it gracefully into a nearby tree.

28. Later, Maya joined her friends for a picnic. They laid out a blanket and used a magnet to keep it from flying away in the breeze. During the picnic, Maya accidentally dropped some paper clips, and she watched as they quickly snapped to the magnet from a short distance away. As the afternoon sun began to fade, Maya and her friends decided to play a game of tug-of-war. They grabbed the rope, divided into two teams, and pulled with all their might. The tension in the rope and the strain in their muscles felt incredibly real as they battled back and forth.

29. The day ended with Maya sitting on a swing, gently pushing off the ground to start swinging. With each swing, she rose higher, feeling a pull that seemed to draw her back down to the earth, only to kick off the ground again and soar back up. Reflecting on her day as the stars began to appear in the night sky, Maya realized the incredible interactions that had played a role in every moment of her day. Filled with wonder, she imagined countless ways these interactions could lead to new inventions and innovations.

30. Learn about It Effects of Forces Setting a stationary object into motion Stopping a moving object Changing the speed of an object Altering the direction of an object Changing the dimensions of an object Can you give an example of scenarios showing each of the effects of forces described here?

31. Key Points A force is an invisible strength that causes objects to move , stop , change direction , or change shape . Forces are categorized into two types: contact forces, which require touch, like pushing a swing, and non-contact forces , which act over a distance, like gravity pulling the basketball down. Common examples of non-contact forces include gravity , magnetism , and electrostatic forces . Forces are measured in units called Newtons , and a common tool for measuring force is a spring scale.

32. Key Points The effects of force are essential in daily life and can be observed in actions such as kicking a soccer ball, using brakes on a bike, or stretching a rubber band.

33. ‹#› Synthesis How do forces influence various aspects of our lives and what is the importance of understanding these forces for innovation?

34. ‹#› Synthesis How can the understanding of forces empower us to make safer and more innovative choices in our personal and professional lives?

35. ‹#› Synthesis How does understanding the principles of forces could be applied to further improve existing technologies or to develop new solutions for environmental challenges?

36. Athletic soccer player kicking ball on soccer pitch by LightFieldStudios is licensed under Envato Elements License via Envato Elements . Strong african american man by ASphotostudio is licensed under Envato Elements License via Envato Elements . Silhouette of people playing basketball against a vivid orange sky during a beautiful sunset by wirestock is licensed under Envato Elements License via Envato Elements . Japanese Mother Swinging Her Baby Toddler Girl on Swing Outside by Prostock-studio is licensed under Envato Elements License via Envato Elements . Happy woman opens the door of hotel room by svitlanah is licensed under Envato Elements License via Envato Elements .

37. Hand holding magnet and attract coins by mohdizzuanbinroslan is licensed under Envato Elements License via Envato Elements . African Child Slides Down Green Playground, Greeted by Smiling Mother - Vibrant and Colorful Moment by luismanuelm is licensed under Envato Elements License via Envato Elements . Satellite flying over the Earth atmosphere in Space. 3d Rendering is licensed under Envato Elements License via Envato Elements .

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