Lab
LabPro: Uniformly Accelerated Motion
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Purpose
This lab is going to investigate and collect data from rolling carts up and down inclined planes using combinations of these modes of linear acceleration:
Speeding up away from the detector
Slowing down away from the detector
Slowing down towards the detector
Speeding up towards the detector
Materials
LabPro Interface
Motion Detector w/ C-clamp
USB Cable
DIG/Sonic Cable
Wooden Ramp
Wooden Cart
Under the Start Menu, Follow:
Start > Programs > Vernier Software > Logger Pro 3.1
Logger Pro 3.1 should automatically set up graphs according to the connected sensors. With the Motion Detector properly connected, the program should display graphs of position versus time and velocity versus time.
Elevate one side of the wooden ramp with a stool and fasten the Motion Detector to the end of the ramp with a C-clamp.
When you are ready to obtain data, hit the "Collect" button on the top right-hand side of the program window.
Note: Do not allow the cart to roll within roughly 0.4 meters of the sensor during collection. This will cause faulty returns and skew the data.
Target Graphs
Your purpose is to learn how to tilt the boards and roll your cart so as to recreate each of the following position-time graphs. Once obtained, sketch each accompanying velocity-time graphs on the "green axes" provided.
Conclusions
Refer to the following information for the next three questions.
1. What is the generic shape during
accelerated motion
for each of the following. Choose one of the following three terms: horizontal line, oblique line, parabola
(a) position-time graph?
horizontal line
oblique line
parabola
(b) velocity-time graph?
horizontal line
oblique line
parabola
(c) acceleration-time graph?
horizontal line
oblique line
parabola
Refer to the following information for the next two questions.
2. Choose the two (2) types of activity which resulted in your
position-time graph
(a) moving to a higher final vertical position
speeding up while going away from the detector
slowing down while going away from the detector
speeding up while coming towards the detector
slowing down while coming towards the detector
(b) moving to a lower final vertical position
speeding up while going away from the detector
slowing down while going away from the detector
speeding up while coming towards the detector
slowing down while coming towards the detector
Refer to the following information for the next two questions.
3. Choose the two (2) types of activity which resulted in your
velocity-time graph
being drawn
(a) in quadrant I
speeding up while going away from the detector
slowing down while going away from the detector
speeding up while coming towards the detector
slowing down while coming towards the detector
(b) in quadrant IV
speeding up while going away from the detector
slowing down while going away from the detector
speeding up while coming towards the detector
slowing down while coming towards the detector
Refer to the following information for the next two questions.
4. Describe the two (2) types of activity which resulted in your
velocity-time graph
having a positive slope - - that is a > 0.
speeding up while going away from the detector
slowing down while going away from the detector
speeding up while coming towards the detector
slowing down while coming towards the detector
In which quadrant I or IV would an accompanying
acceleration vs time graph
for these activities be drawn?
I
IV
Refer to the following information for the next two questions.
5. Describe the two (2) types of activity which resulted in your
velocity-time graph
having a negative slope - - that is a < 0.
speeding up while going away from the detector
slowing down while going away from the detector
speeding up while coming towards the detector
slowing down while coming towards the detector
In which quadrant I or IV would an accompanying
acceleration vs time graph
for these activities be drawn?
I
IV
Refer to the following information for the next eleven questions.
6. These graphs represent a related "set." Show how you either obtained or verified the requested information from the diagram which accompanies each question. Neatly, show your calculations for each answer.
According to these graphs, for how many seconds did the experiment last?
What was the cart's initial position?
In which direction was the cart moving?
towards the detector
away from the detector
What was the cart's initial speed?
What was the cart's final speed?
Was the cart speeding up or slowing down?
speeding up
slowing down
According to the velocity-time provided, what total distance did the cart travel along the ramp?
What is the numerical value of P on the position-time graph provided?
According to the velocity-time graph provided, what was the numerical value of the cart's acceleration?
What is the numerical value of A on the acceleration-time?
According to the acceleration-time graph, what was the change in the cart's velocity?
Refer to the following information for the next question.
7. On the position-time graph provided, sketch the following "story."
A turtle starts from a state of rest 1 meter from the side of a busy road. After waiting for 5 seconds and watching for on-coming traffic, the turtle decides that it is safe to cross the 6 meter-wide road. He takes 3 seconds to accelerate as he moves up to the edge of the road. Keeping his final speed constant, the turtle hurries across the road in 9 seconds. As soon as he successfully reaches the other side of the road, he takes 2 more seconds to quickly slow to a stop 1 meter off the road in the deep, cool grass.
What was the turtle's average speed during his journey?
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Resource Lesson:
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Accelerated Motion: A Data Analysis Approach
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Accelerated Motion: Velocity-Time Graphs
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Derivatives: Instantaneous vs Average Velocities
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Freefall: Horizontally Released Projectiles (2D-Motion)
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Freefall: Projectiles in 1-Dimension
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Freefall: Projectiles Released at an Angle (2D-Motion)
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Monkey and the Hunter
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Summary: Graph Shapes for Constant Velocity
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SVA: Slopes and Area Relationships
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Vector Resultants: Average Velocity
Review:
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Test #1: APC Review Sheet
Worksheet:
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Hackensack
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The Baseball Game
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The Big Mac
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The Cemetary
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The Golf Game
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The Spring Phling
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2D Projectiles
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Dropped From Rest
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Freefall
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Non-Accelerated and Accelerated Motion
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Tossed Ball
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Up and Down
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Average Speed
NT -
Back-and-Forth
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Crosswinds
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Headwinds
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Monkey Shooter
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Pendulum
NT -
Projectile
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Accelerated Motion: Analyzing Velocity-Time Graphs
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Accelerated Motion: Graph Shape Patterns
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Accelerated Motion: Practice with Data Analysis
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Advanced Properties of Freely Falling Bodies #1
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Advanced Properties of Freely Falling Bodies #2
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Advanced Properties of Freely Falling Bodies #3
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Average Speed and Average Velocity
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Average Speed Drill
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Charged Projectiles in Uniform Electric Fields
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Chase Problems #1
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Chase Problems #2
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Chase Problems: Projectiles
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Combining Kinematics and Dynamics
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Constant Velocity: Converting Position and Velocity Graphs
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Constant Velocity: Position-Time Graphs #1
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Constant Velocity: Position-Time Graphs #2
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Constant Velocity: Position-Time Graphs #3
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Constant Velocity: Velocity-Time Graphs #1
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Constant Velocity: Velocity-Time Graphs #2
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Constant Velocity: Velocity-Time Graphs #3
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Energy Methods: Projectiles
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Force vs Displacement Graphs
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Freefall #1
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Freefall #2
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Freefall #3
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Freefall #3 (Honors)
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Horizontally Released Projectiles #1
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Horizontally Released Projectiles #2
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Kinematics Along With Work/Energy
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Kinematics Equations #1
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Kinematics Equations #2
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Kinematics Equations #3: A Stop Light Story
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Lab Discussion: Gravitational Field Strength and the Acceleration Due to Gravity
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Position-Time Graph "Story" Combinations
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Projectiles Released at an Angle
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Rotational Kinetic Energy
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SVA Relationships #1
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SVA Relationships #2
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SVA Relationships #3
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SVA Relationships #4
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SVA Relationships #5
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Work and Energy Practice: An Assortment of Situations
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2A: Introduction to Motion
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2B: Average Speed and Average Velocity
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Projectile Summary
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Projectile Summary
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Projectiles Mixed (Vertical and Horizontal Release)
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Projectiles Released at an Angle
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Set 3A: Projectiles
PhysicsLAB
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