Vernier Software and Technology
Vernier Software & Technology

Velocity Change


Analyzing Position vs. Time Graphs: The most fundamental measurements of motion involve the determination of an object's location at a series of times. A very effective way to represent these measurements is to plot graphs of an object's position and velocity as a function of time. Learning to relate an x vs. t graph or a vx vs. t graph to what a motion looks like and being able to extract both qualitative and quantitative information from the graphs are vital tools for studying motion.


In this activity, you will

  • Examine a video clip of a remotely controlled toy car that changes its velocity as it moves away from an ultrasonic motion detector.
  • Study motion graphed by Logger Pro from motion detector data to describe the car's motion qualitatively.
  • Learn to use the data, the graphs and Logger Pro Analysis tools to extract quantitative information about the motion.

Software for Experiment

This experiment uses Logger Pro software for video analysis. The video for analysis is included with the lab book.

Physics with Video Analysis

See other experiments from the lab book.

1Rolling Ball
2Big and Small: How to Scale an Image
3Velocity Change
4Velocity and Speed
5Velocity and Acceleration
6Three Movies: Determining Constant Acceleration
7Demon Drop: A Mathematical Modeling Activity
8Jumping on the Moon
92D Vectors: Pool Ball Displacement, Velocity, and Speed
10Galileo's Projectile I: Using 17th Century Techniques
11Galileo's Projectile II: Using Contemporary Techniques
12Projectile Motion Vectors
13Frictional Slowing
14Impulsive Juggling
15Center of Mass Motions
16Finding a Spring Constant
17Net Work - Kinetic Energy Theorem
19Slinky Wave Speeds
20Superposition of Slinky Waves
21A Wave Pulse Equation
22Doppler Effect: Surface Water Waves
23Doppler Effect: Sound Waves
24A Heat Engine: Relating Work to the P-V Cycle
25Coulomb's Law for Two Charged Spheres
26Discharge Rate
27Electric Field Due to a Line of Charge
28Resistance and Ohm's Law
29Parallel Plate Capacitor: Potential Difference vs. Spacing
30Wiring Capacitors in Series and Parallel
31Using RC Decay to Determine Capacitance
32Exploring Faraday's Law
33Snell's Law of Refraction

Experiment 3 from Physics with Video Analysis Lab Book

<em>Physics with Video Analysis</em> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

Buy the Book

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