Q3-SCIENCE 7-LC 6 (A)(speed vs velocity).pptx

speed vs velocity

1. TO Nathan’s CHANNEL

2. SCIENCE 7 THIRD QUARTER- lc 6.1 Matatag curriculum WITH FREE POWERPOINT PRESENTATION Speed and Velocity

3. Speed and Velocity CONTENT 1. Scientists and engineers analyze forces to predict their effects on movement. 2. Vectors differentiate the concepts of speed and velocity. 3. Graphing motion provides more accurate predictions about speed and velocity. 4. The particle model explains natural systems and processes. 5. Scientists and engineers conduct innovative research to find solutions to the current global energy crisis by seeking renewable energy LEARNING STANDARD The learners will distinguish between speed and velocity using the concept of vectors LEARNING COMPETENCY

4. By the end of the lesson, the 80 percent of the learners will be able to: Define the terms "speed" and "velocity" and distinguish between the two concepts. Perform experiments to investigate the factors that influence an object's speed and velocity. Appreciate the importance of understanding speed and velocity in everyday life by answering the reflection of learning. OBJECTIVES

5. I. Activating Prior Knowledge Short Review True or False :Write T if the statement is TRUE and F if the statement is FALSE. I. Activating Prior Knowledge __________1. Kilogram is a unit for distance. __________2. The quantity 2 meters is a distance. F T

6. I. Activating Prior Knowledge Short Review True or False :Write T if the statement is TRUE and F if the statement is FALSE. I. Activating Prior Knowledge __________3. The quantity 2 kilometers is a displacement. __________4. The quantity 2 meters to the left is a distance. T T

7. I. Activating Prior Knowledge Short Review True or False :Write T if the statement is TRUE and F if the statement is FALSE. I. Activating Prior Knowledge __________5. The quantity 2 meters to the left is a displacement. __________6. Distance is the length of the entire path travelled by an object. T T

8. I. Activating Prior Knowledge Short Review True or False :Write T if the statement is TRUE and F if the statement is FALSE. I. Activating Prior Knowledge __________7. Displacement includes both distance and direction of the object’s position. __________8. The displacement is equal to zero when an object’s initial and final position is the same. T T

9. I. Activating Prior Knowledge Short Review True or False :Write T if the statement is TRUE and F if the statement is FALSE. I. Activating Prior Knowledge __________9. Displacement includes both distance and direction of the object’s position. __________10. The displacement is equal to zero when an object’s initial and final position is the same. T F

10. Define the terms "speed" and "velocity" and distinguish between the two concepts. Perform experiments to investigate the factors that influence an object's speed and velocity. Appreciate the importance of understanding speed and velocity in everyday life by answering the reflection of learning. B. Establishing Purpose of the Lesson 1. LESSON PURPOSE

11. B. Establishing Purpose of the Lesson 2. Unlocking Content Vocabulary: Match Type Activity DISTANCE VELOCITY Instantaneous speed/velocity the total distance traveled by the object in a particular time interval Speed in a particular direction How fast an object is moving at a moment SPEED Measure of how fast an object is moving

12. Speed is a measure of how fast something is moving. It is the rate at which distance is covered. The word rate is a clue that something is being divided by time. Speed is defined as the distance covered per unit time. Speed is also a scalar quantity. C. Developing and Deepening Understanding

13. Velocity is a vector quantity. It describes how fast and in which way (speed + direction) an object is moving. It can be negative or positive depending on the direction of motion. C. Developing and Deepening Understanding

14. Differentiate Speed from Velocity C. Developing and Deepening Understanding Speed is the rate of distance covered at a given time. We can express speed in terms of miles per hour (mi/h), kilometers per hour (km/h), or meters per second (m/s).

15. C. Developing and Deepening Understanding Compare how fast John walked than Mary. What is the basis of your answer in number 1?

16. C. Developing and Deepening Understanding Example Therefore, John is as fast as Mary. Both have the same speed of 1 meter per second (1 m/s).

17. C. Developing and Deepening Understanding When a direction is associated with speed, it refers to the quantity known as velocity. Thus, velocity is a speed in a given direction. Since velocity has direction it uses displacement instead of distance.

18. C. Developing and Deepening Understanding As shown in Figure 7a, the total distance from home to school is 3.0 km while the displacement is 2.0 km, East as shown in Figure 7b. Suppose you take 0.5 hour to travel from home to school, use the information in Figure 7a and 7b to solve for your average speed and velocity.

19. C. Developing and Deepening Understanding Solving for average speed: Given: d = 3.0 km t = 0.5 h Asked: 𝑣 = ? Solution: 𝑣 = d/t 𝑣 =3.0 𝑘𝑚 /0.5 ℎ 𝒗 = 𝟔. 𝟎 𝒌𝒎/h Formula: S peed= distance t ime

20. C. Developing and Deepening Understanding Solving for average velocity: Given: d = 2.0 km t = 0.5 h Asked: 𝑣 = ? Solution: 𝑣 = d/t 𝑣 =2.0 𝑘𝑚, E /0.5 ℎ 𝒗 = 4. 𝟎 𝒌𝒎/h, E Formula: Velocity = displacement t ime

21. C. Developing and Deepening Understanding Magnitude (speed) Example: 60 km/h, North to 40 km/h, North B. Direction of motion Example: 60 km/h, North to 60 km/h, South C. Both magnitude and direction Example: 60 km/h, North to 40 km/h, South A change in velocity happens when there is a change in:

22. WORKED EXAMPLE Solve the following problems on Speed and Velocity. Show your complete solution with proper units. C. Developing and Deepening Understanding Problem 1: An object travels 120 meters in 15 seconds. What is the object's speed? To solve this: We are given the distance traveled (120 meters) and the time taken (15 seconds). To calculate speed, we use the formula: Speed = Distance / Time Plugging in the values: Speed = 120 meters / 15 seconds Speed = 8 meters/second Therefore, the object's speed is 8 meters/second.

23. WORKED EXAMPLE Solve the following problems on Speed and Velocity. Show your complete solution with proper units. C. Developing and Deepening Understanding Problem 2: A car travels 80 kilometers in 1 hour. What is the car's average velocity? To solve this: We are given the distance traveled (80 kilometers) and the time taken (1 hour). Velocity is defined as displacement (change in position) divided by time. Since the car starts and ends at the same point, the displacement is equal to the distance traveled. Plugging in the values: Velocity = 80 kilometers / 1 hour Velocity = 80 kilometers/hour Therefore, the car's average velocity is 80 kilometers/hour.

24. WORKED EXAMPLE Solve the following problems on Speed and Velocity. Show your complete solution with proper units. C. Developing and Deepening Understanding Problem 3: An object moves 5 meters north, then 3 meters east, then 2 meters south. What is the object's final displacement? To solve this: We need to find the net change in the object's position. The displacements in the north-south and east-west directions are: North-south: 5 m - 2 m = 3 m north East-west: 3 m east 3. The final displacement is the vector sum of these two displacements: Displacement = 3 m north, 3 m east Therefore, the object's final displacement is 3 meters north and 3 meters east.

25. LESSON ACTIVITY Solve the following problems on Speed and Velocity. Show your complete solution with proper units. C. Developing and Deepening Understanding

26. LESSON ACTIVITY Solve the following problems on Speed and Velocity. Show your complete solution with proper units. C. Developing and Deepening Understanding

27. LESSON ACTIVITY Solve the following problems on Speed and Velocity. Show your complete solution with proper units. C. Developing and Deepening Understanding

28. 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.

29. D. MAKING GENERALIZATION Reflection on Learning Explain the key difference between speed and velocity. Describe a real-world situation where the difference between speed and velocity would be important. Explain how you would calculate the displacement of an object given its speed and time.

30. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 1. Which of the following is the correct formula for speed? A) Speed = Distance / Time B) Speed = Displacement / Time C) Speed = Velocity / Time D) Both A and B

31. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 2. What is the unit for speed? A) Meters per second B) Meters per hour C) Kilometers per hour D) All of the above

32. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 3. If an object travels 50 meters in 10 seconds, what is its speed? A) 5 m/s B) 10 m/s C) 50 m/s D) 500 m/s

33. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 4. Which of the following is the correct formula for velocity? A) Velocity = Distance / Time B) Velocity = Displacement / Time C) Velocity = Speed / Time D) Both B and C

34. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 5. What is the unit for velocity? A) Meters per second B) Meters per hour C) Kilometers per hour D) All of the above

35. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 6. If an object travels 80 kilometers in 2 hours, what is its average velocity? A) 40 km/h B) 80 km/h C) 120 km/h D) 160 km/h

36. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 7. An object moves 10 meters north, then 6 meters east. What is the object's displacement? A) 10 meters B) 6 meters C) 16 meters D) 11.8 meters

37. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 8. What is the difference between speed and velocity? A) There is no difference, they are the same thing. B) Speed is a scalar quantity, velocity is a vector quantity. C) Speed is the rate of change of position, velocity is the rate of change of displacement. D) Both B and C

38. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 9. If an object's velocity is constant, what can you say about its acceleration? A) The acceleration is zero. B) The acceleration is constant. C) The acceleration is increasing. D) The acceleration is decreasing.

39. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 10. A car travels 60 miles in 1 hour. What is the car's speed in miles per hour? A) 30 mph B) 45 mph C) 60 mph D) 90 mph

40. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING A) Speed = Distance / Time D) All of the above A) 5 m/s D) Both B and C D) All of the above A) 40 km/h D) 11.8 meters D) Both B and C A) The acceleration is zero. C) 60 mph ANSWERS KEY

41. Reference : SCIENCE 7 LESSON EXEMPLAR FuseSchool - Global Education. (2019, November 17). Displacement Time Graphs | Forces & Motion | Physics | FuseSchool [Video]. YouTube. https://www.youtube.com/watch?v=TG2Y2MDx-zE Infinity Learn NEET. (2017, May 4). Motion | Distance and Displacement | Physics | Infinity Learn [Video]. YouTube. https://www.youtube.com/watch?v=21BwUNDOQno Infinity Learn NEET. (2017b, May 11). What is Velocity? - Full Concept of Velocity - Physics | Infinity Learn [Video]. YouTube. https://www.youtube.com/watch?v=apewLkLAR-U Infinity Learn NEET. (2017c, May 18). Physics - What is Acceleration | Motion | Velocity | Infinity Learn NEET [Video]. YouTube. https://www.youtube.com/watch?v=vxFYfumAAlY Infinity Learn NEET. (2018, November 8). What is Speed? | Motion and Time | Don’t Memorise [Video]. YouTube. https://www.youtube.com/watch?v=S9Z1a3sZfHY td, I. B. J. E. (n.d.). The displacement-time graph game. eChalk . https://www.echalk.co.uk/Science/physics/motion/dispGame/displacementGame.html Speed velocity acceleration wild taxi. (n.d.). https://reviewgamezone.com/games4/taxi.php?test_id=14406&title=Speed%20Velocity%20%20Acceleration