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Force and Motion Move it!
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Overall Objectives Define the concepts of force and motion Develop scientific inquiry teaching skills Implement investigative force and motion activities in your classroom Reflect on outcomes and use teaching methods with other science concepts
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How this is going to work Part 1 Explore/play, read an article, outline what you learned Participate in webinar Read more articles, conduct a survey and begin learning about inquiry
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How this is going to work Part 2 – Face-to-face workshop Part 3 – Implement in your classroom Part 4 – Reflect and share via phone conference
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A force is a push or pull that can cause an object to: Move Stop Change direction Change speed (Article by Gerald Darling)
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Did you: Ask “I wonder what would happen if…” Make a prediction Experiment Draw a conclusion (Article by Gerald Darling)
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Opposite equal forces Gravity = Table Gravity = Table Boy = Door Boy = Door ??? ??? (Article by Gerald Darling)
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First Law of Motion An object at rest will remain at rest unless acted on by an outside force.
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An object in motion continues in motion with the same speed and in the same direction unless acted upon by an outside force. First Law of Motion
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Newton’s First Law “Objects tend to keep on doing whatever they’re doing (staying at rest or staying in motion) unless something else exerts a force on them.” From Stop Faking It! Force & Motion by William C. Robertson PhD
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Some science stuff Speed – distance traveled/time traveled (miles per hour or meters per second) Velocity – speed + direction (the ball is rolling 0.2 m/s toward Suzy) Acceleration – a change in velocity (a change in speed or a change direction or a change in both)
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One more thing Mass is how much stuff is in an object Weight is the pull of gravity on an object
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Second Law of Motion Acceleration happens when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
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Acceleration
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Newton’s Second Law Pushing or pulling an object causes acceleration, a change in the speed or direction or both. An acceleration can be a slowdown OR a speedup. The heavier the object, the more force it takes to make that object speed up or slow down.
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Questions and Comments Are there any concepts you would like to review? Does any one want to share something they discovered in their own play?
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Before the face-to-face workshop: Read “Ramps and Pathways” article Read “Let it Roll” article Take notes on what you have learned Conduct a survey of your space Read “An Inquiry Primer”
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Outline the important components of teaching a scientific investigation lesson on force and motion Outline some things you might like to try in your classroom (Article by Betty Zan and Rosemary Geiken)
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Start a vocabulary list for yourself - this is not for the children - this is to help your understanding NOTE – you do not need to include terms like “rotational inertia” unless you want to dig that deep (Article by Kathy Cabe Trundle and Mandy McCormick Smith)
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Force and Motion Survey Take a survey of your classroom and outside play area and describe the “fantastic four” for 5 – 10 objects/activities and the forces acting on them Start motion Change in speed Change in direction Stop motion
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Examples Object/Activi ty Start Motion Change in Speed Change in Direction Stop Motion Other forces acting A ball Rolling a ball (push) Ball slows down No, moves in straight line A child stops the ball (pull) Rolling Friction A ball Throwing a ball (push) Ball slows down Arch down toward ground A child catches the ball (pull) Gravity/ air resistance
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Define the different forms of inquiry Begin a list of good open-ended inquiry questions (review all of the articles you have read thus) (Article by Alan Colburn)
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Next Generation Science Standards PS2.A Forces and Motion/ PS2.B Types of Interaction Pushes and pulls can have different strengths and directions, and can change the speed or direction of its motion or start or stop it. PS2.C Stability & instability in physical systems A change in motion of an object can depend on the effects of multiple forces.
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Happy Learning! Any questions? Your face-to-face workshop will be… Date and time Place
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