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Grade 4

Grade 4. Motion of Objects Objects in Motion and Speed Big Idea 12 SC.4.P.12.1 & SC.4.P.12.2 Pacing Guide – Quarter 2 Topic 7 & 8 01/06-01/16. Keisha Kidd, Curriculum Support Specialist Mary Tweedy, Curriculum Support Specialist Millard Lightburn , District Supervisor

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Grade 4

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  1. Grade 4 Motion of Objects Objects in Motion and Speed Big Idea 12 SC.4.P.12.1 & SC.4.P.12.2 Pacing Guide – Quarter 2 Topic 7 & 8 01/06-01/16 Keisha Kidd, Curriculum Support Specialist Mary Tweedy, Curriculum Support Specialist Millard Lightburn, District Supervisor Department of Mathematics and Science Office of Academics and Transformation

  2. Benchmark Objectives • SC.4.P.12.1 – Students will recognize that an object in motion always changes its position and may change its direction. • SC.4.P.12.2 – Students will investigate and describe that the speed of an object is determined by the distance it travels in a unit of time and that objects can move at different speeds.

  3. FORCE & MOTION

  4. What is MOTION? • Always a change in the position of an object. • Sometimes it may involve a change in direction, too.

  5. Object at rest • Motion of an object changes when a force acts upon the object. • An object remains in motion, or at rest, unless a force acts on it. What changes motion? Object in motion

  6. Forces Are All Around Us • What are forces? A push or a pull • What happens when you hold up a book and drop it? • Why did this happen? • What happens when you drop two books with different masses? Will they land at the same time or different times? • Does this work every time with any two objects? • What happens if you drop a book and a piece of paper at the same time? Let’s visit • http://www.planetseed.com/laboratory/experiment-air-resistance • http://www.seed.slb.com/labcontent.aspx?id=10206&terms=Galileo Galileo found any two objects will land at the same time. Earth’s gravity will pull harder on the object with the greater mass and the one with the smaller mass will have less force of gravity acting on it. • What force can affect the pull of gravity? Air resistance or friction • How does the force of friction impact an object’s motion? Friction slows down or stops moving objects.

  7. What are forces? Gravity Friction Air Resistance A push or a pull

  8. Balanced ForcesVersusUnbalanced Forces About Force

  9. Types of Motion • Move in a straight line. • Move in a curved path. • Move back and forth. • Move at different speeds.

  10. Measurement Tools for Motion Speed • Distance (meter stick) • Time (stopwatch)

  11. Types of Forces • Push or pull • Friction • Air Resistance • Gravity

  12. Moon Earth • Amount of mass • Type of force applied • Type of surface texture • Surface area What conditions can affect force and motion?

  13. Factors that Determine Motion • Amount of force • Mass of the object • Change in speed (acceleration)

  14. Let’s Explore!

  15. Bounce Back Ball Experiment Problem Statement: develop Hypothesis: develop Test (independent/manipulated) Variable: develop Outcome (dependent/responding) Variable: develop Controls(Constants): develop

  16. Materials: 1 tennis ball (ping pong ball or raquetball) 1 meter stick Masking tape Stopwatch Calculators (optional) Procedures: develop

  17. Bounce Back Ball Experiment Sample Data Chart Conclusion: The ______ was investigated. The data _______________ the hypothesis. After three trials, __________________________ New Questions??

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