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ACCELERATION distance displacement speed a
- 2. Objectives: 1. Explain what acceleration is 2. Determine the formula in calculating the acceleration of an object 3. Appreciate the significance of acceleration in daily life
- 5. Is It Accelerating or Not? Is the ball accelerating? Why or why not?
- 6. Based on the diagram, how can you describe the direction of the car?
- 7. Is the car accelerating? Why or why not?
- 8. Is the car changing its direction as it travels around the oval?
- 9. Is the car accelerating? Why or why not?
- 10. Based on the three diagrams, what are the conditions that should be present to say that an object is accelerating?
- 11. 2. Choose a spacious place to walk straight. 3. Mark on the round the starting line. All participants must start from the starting line at the same time.
- 12. Acceleration tells how fast an object, or a body changes its velocity.
- 13. An object is accelerating when; 1. it is travelling in one direction with changing speed (either speeding up or slowing down), 2. moving at a constant speed but changes its direction, and
- 14. An object is accelerating when; 3. when it changes both the speed and its direction. In other words, acceleration is the rate of change in velocity. Slowing down is called deceleration.
- 15. The SI unit of acceleration is meters per second per second (m/s/s) or it can be mathematically simplified to meters per second squared (m/s2) but other units of acceleration such as kilometers per hour per hour (km/h/h or km/h2) and miles per hour per hour (mi/h/h or mi/h2) are sometimes used.
- 16. As an equation, acceleration is shown as;
- 18. Give daily life situations of accelerating and non-accelerating objects at the following places. 1. At home 2. At the school 3. On the road 4. Amusement park
- 20. Objectives: 1. Calculate the acceleration of an object through problem solving 2. Discuss the formula in calculating the acceleration of an object.
- 21. As an equation, acceleration is shown as;
- 22. 1. A pilot decreases the landing speed from 70 m/s to 7 m/s in 30 seconds. What was the acceleration of the plane? 2. An eagle accelerates from 15 m/s to 22 m/s in 4 seconds. What is the eagles average acceleration?
- 23. 3. A poorly tuned Geo can accelerate from rest to a velocity of 28 m/s in 20 seconds. What is the Geos acceleration? 4. A minivan goes from zero to 55 km/h in 12 seconds. Calculate its acceleration.
- 24. 5. A horse running at 12 m/s accelerates to 38 m/s in 10 seconds. What is the horses acceleration? 6. A car accelerates from an initial velocity of 3 m/s to a final velocity of 11 m/s in a time of 4 seconds. Calculate its acceleration.
- 25. 7. A truck has an initial velocity of 22 m/s. Over a time interval of 3 seconds, its velocity decreases to 13 m/s. Calculate the acceleration. 8. Dumbo needs to slow down so that he wont crash into an oncoming tree. Hes going at a speed of 50 m/s and came to a stop. It took him 4 seconds to stop. What was his rate of acceleration?