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Understanding Motion: Slope, Speed, and Acceleration in Physics

This study guide covers the fundamental concepts of motion in physical science, focusing on the slope of distance-time and velocity-time graphs. Students will learn how to interpret slopes to understand speed changes and acceleration. The guide includes practical examples and problems for calculating speed and acceleration, such as determining how fast various objects travel over specific distances. Key concepts surrounding motion graphs are also explored, providing a comprehensive overview suitable for Mr. Rosato's Honors Physical Science class.

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Understanding Motion: Slope, Speed, and Acceleration in Physics

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  1. Motion Study Guide & Notes Mr. Rosato’s Honors Physical Science October 2011

  2. Slope of a Curve Slope shows how much y changes with x Y Y Slope = 3/2 X X

  3. Slope of a Distance-Time (DT) Curve

  4. Slope

  5. Slope of a Speed/Velocity-Time (VT) Graph

  6. Reading a Velocity-Time (VT) Graph • The slope of a VT graph shows how fast the speed is changing – or how the object is accelerating

  7. Acceleration

  8. Calculating Acceleration

  9. A rocket can move 100 kilometers in 4 seconds. What speed is it moving at? • What speed (in m/s) is a skateboarder moving if he can skate 10 kilometers in 10 minutes? • A red Ferrari zooms over 500 metres in 4 seconds. What is its speed? • How long would it take a snail to slither 20 meters at 5 meters per hour? • How many seconds does it take an Indy race car to travel a 240 meter straight section at 80 m/s?

  10. 1. How fast is a bird flying if it goes 50 meters in 5 seconds ?  2. If a lizard crawls 10 meters in 20 seconds, what is its speed? 3. If a fish swims a distance of 4 km in 2 hours, what is its speed?  4. If a baseball is traveling at 60 m/s, how far will it go in 3 seconds? 5. How much time will it take a bike going 5 m/s to travel 20 meters ? 6. If a sprinter runs 40 meters in 5 seconds what is his speed? 7. If an insect travels for 300 seconds at a speed of 2 cm/second, how far will it have traveled?

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