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One-Dimensional Motion and Force

Explore the principles of one-dimensional motion and force with Vernier technology. Measure position, velocity, and acceleration of objects traveling in a straight line or conduct investigations into Newton’s laws, impulse and momentum, and energy.

One Dynamics System—Three Ways to Collect Data

Depending on your budget and your needs, we offer three ways to collect motion data.

Go Direct Sensor Cart

The wireless Go Direct® Sensor Cart includes an optical encoder on a wheel to sense the displacement of the cart, on or off the track. No interface is needed to use this system with the Vernier Graphical Analysis® Pro app. Students can perform impulse and momentum experiments with the built-in force sensor, and the 3-axis accelerometer means you can take your Sensor Cart off campus to investigate accelerations on a swing or merry-go-round.
Go Direct® Sensor Cart

Motion Encoder

For classrooms already equipped with data-collection interfaces, the Motion Encoder dramatically improves data quality and simplifies experiment setup over the traditional ultrasonic Motion Detector. An optical sensor under the dynamics cart senses the passage of the cart over a striped decal on the track. The displacement information is sent as an encoded IR signal to a receiver at the track’s end. This optical-only system provides excellent, repeatable, and noise‑resistant data.

Motion Detector

The Go Direct Motion Detector is the classic method for collecting position data. Use a motion detector bracket to measure cart motion for the entire length of the track. You can even use two motion detectors at once to study cart collisions. Unlike the Motion Encoder or Go Direct Sensor Cart, the motion detector can be used for dynamics experiments other than cart-on-track experiments.
Go Direct® Motion Detector with Motion Detector Bracket

Software for Physics

Deepen Students’ Understanding of Natural Phenomena

Unlock key features with Vernier Graphical Analysis® Pro and do more with your Vernier sensors to expand and extend learning. With access to Pro, you can enrich live instruction while providing more opportunities for students to interact with and analyze data outside of class time.

Study Motion Everywhere

The Vernier Video Analysis® app brings video analysis to your students in an easy-to-use, streamlined application. Students can design their own scientific investigations, record videos, and then analyze the motion. This app gives your students the opportunity to observe and study hard-to-replicate phenomena regardless of device—it even works with Chromebooks!

A recent commute to work that shows the x-direction acceleration (forward positive) in blue and the y-direction acceleration (left positive) in red

Five Ways to Take Physics Learning on the Go with the Go Direct Acceleration Sensor

With the right tools, your students can explore important physics concepts in the real world—even when they’re traveling. A great example of one of these tools is the Go Direct Acceleration Sensor. It’s compact and easy to use, and it gives you the ability to collect three-dimensional acceleration, rotation, and altitude data in the field.

Looking for more physics solutions?

We’ve got you covered. Explore offerings for different topics, check out featured products and software for physics, and more.

We are scientists, educators, and your team.

As you implement data-collection technology into your teaching, we’re here to support you! Looking to learn more about our products or have questions about ordering? Reach out to our team at

Are you a district or school administrator?

If you are considering an adoption or seeking training options, we are here to support you every step of the way. Contact our solutions team at