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Understanding Motion: Speed, Velocity, and Acceleration Concepts

This video explains the fundamental concepts of motion, including speed, velocity, and acceleration. Speed is defined as the distance traveled over a certain time, while average speed is calculated by dividing total distance by total time. Constant speed refers to speed that does not change. Velocity combines speed with the direction of movement, while acceleration denotes any change in speed or direction. The video also includes practical examples, calculations, and superhero analogies for better comprehension of these concepts.

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Understanding Motion: Speed, Velocity, and Acceleration Concepts

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Presentation Transcript

  1. Describing Motion

  2. http://www.youtube.com/watch?v=DRb5PSxJerM

  3. Speed • The distance an object travels in a certain amount of time. • Average speed – Total distance divided by total time • Constant speed - Speed that does not change over time • On your paper, describe an example of an object at a constant speed.

  4. What is the formula for calculating speed? Speed equals distance divided by time. S = d t

  5. Let’s Practice Calculating Speed • In your notebook, calculate this problem. Make sure you show all work! One side of a track is about 100 meters long. If it takes a person 20 seconds to run its length, how fast was the person running?

  6. Check Your Work One side of a track is about 100 meters long. If it takes a person 20 seconds to run its length, how fast was the person running? • Speed = Distance ÷ Time • Speed = 100 m ÷ 20 s • Speed = 5m/s Remember to label the UNITS!!

  7. Velocity • An object’s speed and direction at a given time • The wind is blowing 65 km/hr from the North. • On your paper, describe an example of velocity.

  8. Acceleration • A change in the direction or velocity of an object over time – which may be: • A change in speed • Starting • Stopping • Speeding up (positive acceleration) • Slowing down (negative acceleration) • A change in direction • Acceleration is caused by unbalanced forces. • On your paper, describe an example of an object accelerating.

  9. Our first super hero is Fire Hawk, he represents Speed. • Our second hero is Rocket Man, he represents Velocity. • For our final super hero we changed it up and made him a super villain, his name is Steam Roller. He represents Acceleration.

  10. http://marvel.com/games/play/31/create_your_own_superhero • http://www.heromachine.com/ • http://cpbherofactory.com/

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