graphing motion: distance, velocity, and acceleration
TRANSCRIPT
PHYSICS CHAPTER 1, SECTION 4
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, 2012HW: 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 endA B C D
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
Δt
Δv
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