Amusement parks provide an authentic opportunity to conduct real science and apply physics and math concepts in real-world situations. While visiting an amusement park, not only will you have a fun-filled day of riding rides, but you will get to apply what you have learned about estimation, measurement, motion, forces, gravity, energy, and systems.
What does an accelerometer measure? The obvious answer is acceleration, but that's not really true. An accelerometer actually measures normal force or restoring force which we equate to acceleration using the formula, F=ma. This article will explain the fundamental operating principles of accelerometers and investigate the capabilities and drawbacks of accelerometers in certain applications.
In the study of collisions between two carts, it is desirable to collect position data for both carts. This can be done with a pair of Voyagers, each connected to separate devices running the PocketLab app. Starting data collection on both Voyagers by simultaneously clicking data recording on both PocketLab apps is difficult. One cannot view the data on a single device in real time, and analysis of data requires combining data from two separate devices.
It would be nice if one could connect two (or more!) Voyagers to the same device—say to an Android device or an iOS device running an app that could display concurrent data collection from both Voyagers. Such a capability is possible by the use of Phyphox (physical phone experiments), an app developed at the 2nd Institute of Physics of the RWTH Aachen University in Germany. The author of this lesson has been working with a pre-release Android version of this app that supports BLE (Bluet
What Internet of Things projects are Stanford students developing? Stanford ME220 "Introduction to Sensors" is an introduction to the variety of sensors that are used in engineering practice. Students in this class get a comprehensive overview of common practices with sensors and learn the direction in which sensor technologies are heading.
This project will get your physical science/physics students involved in a number of Next Generation Science Standards, particularly in the NGSS science and engineering practices. This investigation provides a nice opportunity for the students to (1) suggest hypotheses, (2) design an experiment to test their hypotheses, (3) analyze and interpret their data, and (4) use principles of physics to explain their observations quantitatively.
Gears date back many centuries and are extremely useful since they can change the direction imposed by a source of power, as well as torque and speed. This lesson describes an experimental study of the relationship between gear ratio and angular velocity by using PocketLab Voyager and Wonder Gears. Wonder Gears is listed for ages 3+, with this lesson heavily emphasizing the “+” part of the description—since this lesson is perfect for junior high students aged 12 through 14. This is one of the many advantages of Po
Let’s imagine two scenarios:
1. Two identical vehicles, each of whose speedometers reads 50 mph, travel toward each other and experience a head-on collision.
2. Another identical vehicle, traveling at 50 mph, hits an unmovable, unbreakable and impenetrable rock wall.
Which collision is more severe from the viewpoint of one of these vehicles?
This lesson makes it possible for your students to study radioactive decay and half-life concepts without the need to purchase expensive radiation monitors and actual radioactive isotopes. Scratch and Voyager work together to accomplish this via a simulation that matches that of true radioactive decay. ScratchX is not required, but may be used. The Scratch program provides the decay process. With each decay of a simulated atom, the Scratch screen quickly flashes white and emits a beep sound similar to that of a typical Geiger counter. Voyager’s light sensor records each of the decays a