ACCELERATION



ACCELERATION!

_______________ is the rate at which velocity (speed) changes.

Can be an:

← ______________________________________

o Example: ____________________________________________________________

← ______________________________________

o Example: ____________________________________________________________

← ______________________________________

o Example: ____________________________________________________________

Formula for Acceleration:

[pic]

The units for acceleration are: _____________

|0s |1s |2s |3s | 4s |

|[pic] |[pic] |[pic] |[pic] |[pic] |

|0m/s |4m/s |8m/s |12m/s | 16m/s |

Calculating Acceleration of a Car:

|Acceleration = |m/s – m/s |

| | s |

Final Speed of Car: _____________________ m/s

Initial Speed of Car: _____________________ m/s

Time: ________________________________ sec

Acceleration: __________________________ m/s2

Graphing Acceleration:

Can use 2 kinds of graphs:

← _________________________________________

← _________________________________________

Speed vs. Time Graphs

1. Speed is increasing with time = ___________________

2. Line is straight = _____________________________

3. In speed vs. time graphs:

Acceleration = _________ / ____________

4. What is the acceleration of the object between time 2 and 4 sec? _________________________________________________________________________________

Distance vs. Time Graphs

1. On distance vs. time graphs a _______________________ line means the object is accelerating.

2. A curved line also means your _______________________ is increasing. (Remember slope = speed on a distance vs time graph)

Which lines represent an object that is accelerating on a distance vs. time graph below?

_____________________________________________________________________________________

Remember in distance vs. time graphs:

Curved line = ________________________________

Flat line = ___________________________________

What would a distance vs time graph look like for this car?

Is there acceleration?___________________________________

What shape does the distance/time graph need to be? __________________________________________________

What is the speed doing? _______________________________

What is the distance doing?_________________________________________________

What does that mean for the GAIN in distance over time?________________________________

So what will the graph look like? ____________________________________________________________

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_____________relationship

_____________velocity

_____________acceleration

_____________relationship

_____________velocity

_____________acceleration

_____________ relationship

_____________velocity

_____________acceleration

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