Measuring Momentum
Recommended for grades 5–12.
Introduction
Speed and velocity are rates. They tell us how much distance is covered in a unit of time. Velocity differs from speed because velocity depends on direction, while speed does not. Velocity can be expressed by the formula
where v = velocity or speed (in m/s), d = distance traveled (in meters), and t = time (in sec). In this activity, you will study the velocity of a car after it is released from different points on a ramp. A computer-interfaced Motion Detector will be used to measure velocity.
Objectives
In this experiment, you will
- Measure velocity using a Motion Detector.
- Record data.
- Graph results.
- Determine the relationship between velocity and release point.
Sensors and Equipment
This experiment requires each of the following Vernier sensors and equipment (unless otherwise noted):
Additional Requirements
You may also need an interface and software for data collection. What do I need for data collection?
Download Experiment Preview
The student-version preview includes:
- Step-by-step instructions for computer-based data collection
- List of materials and equipment
Note: The experiment preview of the computer edition does not include essential teacher information, safety tips, or sample data. Instructions for Logger Pro and other software (such as LabQuest App or TI handheld software, where available) are on the CD that accompanies the book. We strongly recommend that you purchase the book before performing experiments.
Standards Correlations
See all standards correlations for Physical Science with Vernier »
Included in the Lab Book
Vernier lab books include a CD with word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.