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Forces and Motion

"High Striker" with PocketLab & ScratchX

Submitted by Rich on Sat, 09/01/2018 - 19:29

Carnival Games

Most everyone enjoys a carnival!  Some like the food--from cotton candy, to funnel cakes, to ice cream.  Others enjoy rides such as the carousel, Ferris wheel, and bumper cars.  Many like to test their skills in games like "Milk Bottle", "Balloon and Dart", and "Ring Toss".  One of the most well-know skill games is "High Striker", sometimes called "Ring the Bell" or "Strongman Game".  This game is commonly played by guys trying to impress girlfriends and wives with their macho strength.  In this game, a large mallet is used to strike one end of a lever.  Th

Theremin Synth Music with Voyager/ScratchX

Submitted by Rich on Thu, 08/23/2018 - 15:25


theremin , named after its Russian inventor in the early 1900's, is an electronic musical instrument that is controlled without any contact by the musician.   Volume is controlled by moving one hand near one antenna, while pitch is controlled by moving the other hand near a second antenna.  The sound is generated by a pair of high-frequency oscillators.

Grade Level

PocketLab/Ozobot LIDAR Demonstration

Submitted by Rich on Fri, 07/06/2018 - 23:05


LIDAR—an acronym for Light Detection and Ranging—is a method for remote sensing to measure distances.  While LIDAR commonly uses reflected laser light to accomplish this, students can investigate LIDAR principles by using Voyager’s IR rangefinder in conjunction with Ozobot Evo.  Ozobot is a tiny programmable robot that can follow lines.  In this activity, PocketLab Voyager is mounted on top of Ozobot.  While Ozobot t

Grade Level

Relative Velocity Lab: PocketLab/Ozobot/LEGO

Submitted by Rich on Sat, 06/30/2018 - 19:32

Introduction to Relative Velocity

Airplanes can experience head winds or tail winds that affect their flight time.  Similarly, motorboats on a river experience ground velocities that are dependent on whether they are traveling upstream or downstream.  Both of these phenomena are associated with a physics concept known as relative velocity--the main topic of this lab.

Grade Level

Voyager Rides an RC Car for Summertime Fun

Submitted by Rich on Wed, 06/20/2018 - 18:18

RC Car Fun!!!

Here is a fun summertime activity!  Race an RC car with PocketLab Voyager. Challenge your friends to see who can negotiate a series of cones in the shortest amount of time without hitting any of the cones.  Start and end times are obtained by Voyager's magnetometer as the RC car passes by magnets.  

PocketLab/Phyphox Tracer Lab

Submitted by Rich on Thu, 06/07/2018 - 18:08

Introduction to this Lab

This is a quick and fun lab for makers!  In this lab, a pair of PocketLabs and Phyphox software are used to make a tracer.  As shown in Figure 1, the pair of PocketLab Voyagers are mounted to a small movable rectangular piece of plastic, perpendicular to one another and parallel to two edges of the plastic.  A small black circle is taped to the plastic to serve as the point for following the item to be traced.  In our example, a five-pointed star is traced.  One of the Voyagers is labeled X, and it


Periodic Motion of a Pair of Physics Carts: Experiment and Theory

Submitted by Rich on Thu, 05/10/2018 - 01:54

A Physics Challenge

In this lesson, AP and college students are challenged to derive equations for the periods of two fundamental modes of oscillation of a pair of coupled physics carts.  Derivation will involve Hooke's law, Newton's Second Law of Motion, and principles of simple harmonic motion.  Theory is then compared to experimental results obtained from PocketLab Voyager rangefinder data using Phyphox software.

Grade Level

Linear Motion - Match the Graph Activity

Submitted by PocketLab on Mon, 05/07/2018 - 21:52

Lab Activity: Understanding Linear Motion - Match the Graph Activity


In the PocketLab activity Modeling Linear Motion - Position, Velocity versus Time, we learned how graphs can be used to model an object’s motion. In that activity, a cart was pushed up a ramp and PocketLab’s rangefinder measured its change in position and velocity vs. time as it traveled up the ramp, changed direction and came down the ramp. The graphs modeled the cart’s direction of movement and speed. In this activity, we will take the concept further.

Grade Level