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.
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
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.
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.
What causes the seasons on Earth?
Weather is always changing. Humans have been dividing up the year based on these changes in weather for thousands of years. A division of a year based on weather is called a season. Different regions of the Earth have different names for seasons and different types of seasons. The most common seasonal names used are Winter, Spring, Summer, and Fall.
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.
Lab Activity: Modeling Linear Motion with Position and Velocity vs. Time Graphs
This lab activity helps in understanding how measurements of an object's motion can be modeled in position and velocity vs. time graphs. Velocity is a vector measurement that gives an object’s speed and direction of movement. If a cart is pushed up a ramp, it will experience many changes in velocity that can be observed and measured.
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?