Graphing Motion: Distance, Velocity, and Acceleration.

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Presentation transcript:

Graphing Motion: Distance, Velocity, and Acceleration

Do Now  With a partner grab 1 Speed Machines worksheet from the front table. Work the problems together

August 27, 2012 HW: PTG #1-11, pg 68/69 skip 10 Due Friday  Do Now (NB pg 15 ):  1.3 Quiz  WDYS  WDYT  TB Pg 52  Success Criteria  Define acceleration using words and equation  Calculate speed, distance, and time, using the equation for acceleration  Interpret distance-time and velocity-time graphs for different types of motion  Agenda:  Do Now  Physics Talk Notes  Practice Problems  Acceleration Relay  Quiz 1.4

Of the 4 different distance vs time graphs, indicate which fit the below descriptions 1____No motion 2____constant speed 3____faster motion at the beginning 4____faster motion at the end ABCD

Do Now  A bus travels between the 275 m marker and the 400 m marker on a highway in 20 s. The average speed of the bus during this interval is….  A soccer player kicks a ball at 32 m/s. If the goal is 10 m from the player approximately how much time does it take for the ball to reach the goal?

Physics Talk (Notes)  What is acceleration?  What is velocity?  Change in velocity with respect to time  Speed in a direction

Physics Talk (notes)  How can velocity change?  Increase or decrease in speed  Change in direction (turn)  So if velocity is changing…so is acceleration!

Physics Talk (notes)  What is positive acceleration?  What is negative acceleration?  Final velocity is more than initial velocity  Final velocity is LESS than initial velocity

Physics Talk (notes)  Describing acceleration using strobe photos  What is happening to the velocity and acceleration in this strobe photo?

Physics Talk (notes)  What is the equation for acceleration?  Acceleration = Δvelocity Δtime  a=Δv Δt ΔtΔt ΔvΔv a

Physics Talk (notes)  Practice Problem  At the start of a race, a toy car increases speed from 0m/s to 5.0m/s as the clock runs from 0s to 2.0s. What is the acceleration?

Physics Talk (notes)  Describing acceleration using Graphs

Physics Talk (notes)  Comparing motion Graphs

Physics Talk (notes)  Practice Problems

HW:PTG #1-11, skip 10  Do Now (NB pg 15 ):  Get out signed grade report  Finish Formula Challenge (10 min)  Success Criteria  Define acceleration using words and equation  Calculate speed, distance, and time, using the equation for acceleration  Interpret distance-time and velocity-time graphs for different types of motion  Agenda:  Do Now  Physics Talk Notes  Practice Problems  Acceleration Relay  Quiz 1.4

 Speed/Acceleration Relay as individuals!

1.4 Quiz