Chapter 2 = section 1,2,and 3 ( Motion in One Dimension)

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Chapter 2: Motion in One Dimension

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20 Terms

1
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A system for specifying the precise location of objects in space and time

Frame of reference

2
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Is motion that only occurs along one axis (x or y) 

  • Things going left or right

  • Things going up or down

Motion in One Dimension

3
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Δx

change in position

4
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The change in position of an object

Displacement

5
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The total amount of space traveled along any path

Distance

6
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Where an object starts and stops isn’t enough to describe?

Motion

7
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The total displacement divided by the time interval during which the displacement occurred

Average velocity

8
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v avg​= Δx​/Δt

Average velocity

9
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If an object travels 50 meters in 10 seconds, what is its velocity?

5m/s

10
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describes motion with both a direction and a numerical value

Velocity

11
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Has no direction, only magnitude 

Speed

12
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Total Distance​/Total Time = ?

Average Speed

13
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A runner travels 200 meters in 40 seconds. What is the average speed?

5m/s

14
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The rate at which velocity changes over time; an object accelerates if its speed, direction, or both change

Acceleration

15
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what can either increase or decrease

Velocity

16
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Δt / Δv​

Average Acceleration

17
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In a velocity vs. time graph, the what is the change in velocity ?

Rise

18
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In a velocity vs. time graph, what represents time ?

Run

19
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In a velocity vs. time graph, what represents slope ?

acceleration

20
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Δx = ½ ( Vi + Vf ) ΔT

Displacment