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Speed and Velocity

Learn about speed, velocity, distance, and time in motion. Explore the differences between speed and velocity, and solve speed and velocity problems with ease. Perfect for beginners in physics or mathematics.

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Speed and Velocity

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  1. Speed and Velocity

  2. Motion is measured by time and distance

  3. Distance the separation of two positions

  4. Distance Commonly measured in • meters • kilometers

  5. Time the period between two events

  6. Time Commonly measured in • Seconds • Minutes • Hours

  7. Speed the measure of how fast an object moves as it changes its position

  8. Speed Commonly measured in • Meters per minute (m/m) • Kilometers per hour (km/h)

  9. Speed = Distance Time

  10. 35 30 25 20 15 10 5 0 Speed meters Time = 0 seconds

  11. 35 30 25 20 15 10 5 0 Speed meters Time = 5 seconds

  12. 35 30 25 20 15 10 5 0 Speed meters Time = 10 seconds

  13. 35 30 25 20 15 10 5 0 Speed meters Time = 15 seconds

  14. Constant Speed - Speed that does not change - Something with constant speed doesn’t speed up or slow down

  15. Constant Speed

  16. Average Speed the total distance traveled divided by the total time of travel

  17. Speed & Velocity How is speed different from velocity?

  18. Velocity describes both the speed and its direction 90 km/h = speed 90 km/h west = velocity

  19. Speed & Velocity Problems • Mark’s car takes 50 seconds to cover 1500 meters. What’s the average speed in meters per second? • An earthworm travels at an average speed of 0.004 m/s across a 4.0 meter walkway. How long does the earthworm take to cross the walkway?

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