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Presentation transcript:

Bell-ringer: 5 min.

Mantra - Your Turn! Today is a great day for science because: science is power. We are powerful because: We always make a difference.

Agenda Connections Friday Volunteers Acceleration Guided and Independent Practice Summary Questions to think about Balloon car project: Supplies, Video? HW: Cars due Monday, 1 acceleration problem, 5 Review Questions from packet Feedback/ Questions

Connections Friday Brainstorm an object with the fastest velocity or acceleration you know OR Talk about your favorite trip and how you travelled by distance and displacement

Kinetic Motion Focus on 3 descriptions: Distance (d) Displacement (x) Speed (s) Velocity (v) Acceleration (a)

Acceleration Acceleration (a): Velocity / Time =∆v/t The velocity of your trip vs. the time you spend moving Like hitting or letting up on the gas pedal Vector!

Guided and Independent Practice: Understanding Acceleration and graphs with practice problems from work packet

Graphing Acceleration vs. time Using our latest velocity graph’s slope, let’s plot our acceleration

Area Under the Curve = Velocity

Your turn: Find the velocities from the graph

Your Turn Challenge: Find the total velocity from the graph

Summary Of Graph Trends Acceleration Faster Same Speed Slower Forward Stopped Backwards Velocity Displacement

Summary of Graph Techniques Acceleration Velocity Displacement Area Under Curve Slope of Line

What happens to each graph…

Questions to think/write about... Create and describe a plan to test changes in acceleration by using a balloon-powered car Football Team Challenge: How could you test and calculate your acceleration running on the field?

Yesterday’s Skipped Questions to think/write about... Create and describe a plan to test changes in velocity by using a balloon-powered car Cheerleader Challenge: How could you test and calculate a flyer's velocity falling from a cradle? Velocity in a stream: Which would have fewer insects? A stream with a faster velocity or one that is still like the bayou’s outside? Why?

Balloon Car Plan Time https://www.youtube.com/watch?v=K8hu5Y-9AZ8 Balloons and Straw Distribution

Last Items/ Questions Cars due Monday Homework: Cars due Monday 1 acceleration problem from packet 5 Review Questions from packet Recommended to visit: http://sdsu-physics.org/physics180/physics195/Topics/chapter2.html Think about your progress and effort