Skip to main content

Theremin Music Simulation: Voyager/ScratchX

Submitted by Rich on Mon, 08/20/2018 - 20:41

What is a Theremin?

A 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.

Subject

Dynamometer for Hand Strength

Submitted by Rich on Mon, 08/13/2018 - 17:41

A PocketLab Voyager Hand Dynamometer

Hand and finger strength is vital in many aspects of life--from sports such as rock climbing to jobs including airline baggage workers.  PocketLab Voyager's tactile sensor can be used to construct a very simple hand dynamometer to measure strength of a person's hands and fingers.  Figure 1 shows a simple dynamometer constructed by the author.  It consists of a 2" x 2" x 4" block of wood to which the PocketLab tactile sensor has been attached using removable double stick poster tape.

Subject

Heel Pressure: Running versus Walking

Submitted by Rich on Fri, 08/10/2018 - 18:28

Heel Pressure

Do you really know how to walk or run?  PocketLab's tactile pressure sensor provides for an opportunity for your students to investigate foot pressure during these activities.  Improper form can ultimately lead to unwanted visits to a podiatrist.  Whenever you take a step, your body places pressure on muscles, joints and tendons in your legs, knees, ankles, feet and toes.   Controlling heel pressure is a key factor to prevent injuries in this regard.

Subject

Common Sense Education Rates PocketLab a "Top Pick for Learning"

Submitted by PocketLab on Thu, 08/02/2018 - 17:02

Common Sense Education Gives PocketLab 5 Stars and Rates It a Top Pick For Learning

What the reviews say about PocketLab:

"Kids...can design investigations that matter to them." 

"VelocityLab provides a new way of learning about motion." 

"Sensors are durable and lightweight, so students can be creative." 

"VelocityLab is a great way to turn play into science."

Hysteresis of a Tactile Sensor

Submitted by Rich on Mon, 07/30/2018 - 15:38

What is hysteresis?

Hysteresis can be defined as a lag time in the response of a system to forces placed on the system.  A common way used in physics classes to observe hysteresis is by loading and then unloading weights from a suspended rubber band, while observing the extension of the rubber band.  Students find that the rubber band does not Obey Hooke's law.  They also observe that the amount of stretch of the rubber band is different when unloading than when loading.

Subject
Grade Level

3D Printed Pendulum for Simple Harmonic Motion

Submitted by clifton on Mon, 07/09/2018 - 19:37

This 3D printed model demonstrates the physics of a simple pendulum that consists of a mass, m, hanging from an arm of length, L, and fixed at a pivot point, P. You can move the mass along the length of the arm to change the center of mass of the pendulum. If you displace the pendulum from equilibrium to an initial angle, θ, and release, the motion will be regular and repeat. This is an example of periodic motion also called simple harmonic motion.

Grade Level

PocketLab/Ozobot LIDAR Demonstration

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

Introduction

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

PocketLab on DonorsChoose.org

Submitted by DaveBakker on Fri, 07/06/2018 - 18:01

Can I get PocketLab on DonorsChoose.org?

We hear this question often: Can I request PocketLab on DonorsChoose.org? The answer is a definite yes! We are proud to have Nasco as a reseller of PocketLab products, and Nasco is on the short list of qualified vendors for DonorsChoose.org.

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