Module 1- -describing-motion

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1. 3 RD Quarter MODULE I Describing Motion Grade 7 Science Prepared by: Nonah Mae T. Espina

2. OBJECTIVES Differentiate distance from displacement Identify the distance covered by the object in motion Give the correct displacement of a moving object

3. MOTION A change in position during a period of time

4. Distance If there’s a change in the position, there’s also a change in the distance and displacement of an object. Displacement Total length covered by the moving object. It includes both the length of the object’s path from starting to its initial position and the direction of the objects motion.

5. Distance vs Displacement Study Figure on the left. 1. The boy rides his bicycle from Point A to B to C. What is the total distance he covered? 2.What is the displacement?

6. Speed, Velocity, & Acceleration

7. SPEED Refers to how fast the object is moving. It tells us the distance the object travels at a given time. Formula Symbols: S = Speed D = Distance T = Time Unit: m/s

8. Sample 1 If the car travels 5 meters in 3 seconds, what is its speed? Step 4 – Write your answer Step 3 – Solve Step I – write the GIVEN Step 2 – write the FORMULA

9. VELOCITY Is the rate of change of the object’s position with respect to a point of reference over time. It is the speed and direction in motion. Formula Symbols: V = Speed D = Distance T = Time Unit: m/s + Direction

10. Sample 1 A car runs 40 m West in 10 sec. What is he car’s velocity? Step 4 – Write your answer Step 3 – Solve Step I – write the GIVEN Step 2 – write the FORMULA

11. Acceleration Rate of change of velocity Formula: Symbols: a = Acceleration V i = Initial Velocity V f = Final Velocity T = Time Unit: m/s 2

12. Lisa lives on a hilly area in Lapu-Lapu City. When Lisa goes up the hill she begins with a velocity of 2 m/s. However, since the hill is quite steep, her velocity become 1 m/s after 10 seconds. What is Lisa’s acceleration? Sample 1 Step 4 – Write your answer Step 3 – Solve Step I – write the GIVEN Step 2 – write the FORMULA

13. TYPES OF MOTION GRAPHS A. Fill out the table below using the graph above. B. Plot the values in the table above as points on the graph from the table above. Note that time is plotted on the X-axis while position is plotted on the Y-axis.

14. SUMMARY Motion is a change in position during a period of time. Scalar quantity have only magnitude while vectors have magnitude and direction. Distance is the total length covered by the moving object while displacement includes both the length of the object's path from starting to its initial position and the direction of the objects motion. Speed is the distance an object travels in a given of time. Velocity is the speed in a given direction. Acceleration is a change in velocity in a period of time. Constant speed refers to the speed does not change at all for each second of the motion while instantaneous speed refers to the speed of the object at a particular instant.

15. MODULE I Learning Tasks

16. ACTIVITY I

17. ACTIVITY 2 INSTRUCTION: In a long bondpaper , copy and answer the questions found on the left. Take a picture and post attach it in the EDMODO link found in your EDMODO account.

18. ACTIVITY 3 INSTRUCTION: In a long bondpaper , copy and answer the questions found on the left. Take a picture and post attach it in the EDMODO link found in your EDMODO account.

19. ANNOUNCEMENT! Summative Exams will always be posted every FRIDAY!