Problems with Vectors at an Angle
Why angles matter in physics Many physical quantities depend not only on the size of a force, but also on its direction. A force can be resolved into components, produce a turning...
03 Motion and Forces
Bouncing ball with energy loss
This simulation offers a clear and interactive way to explore the motion of a ball bouncing on the ground, highlighting how displacement, velocity, and acceleration change over...
Dropping with air resistance
This simulation lets you watch two equal-size spheres (light and heavy) fall, while you see their free-body diagrams (FBDs) and a velocity–time graph update in real time. Press...
Simulation of Projectile Motion with Air Resistance
This simulation offers a hands-on and dynamic way to explore the physics of projectile motion with and without air resistance. By adjusting parameters such as launch velocity,...
Interactive System Schema Generator
I built this web app to help students draw system schemas, having blogged about this before . It is also available and optimised for download for SLS . Basic Instructions To add...
Interactive Graph with Javascript
I was experimenting with using generative AI to create an interactive graph that could be used to amend the animation of a moving particle, for the topic of kinematics. Students...
Random displacement and velocity simulation
Oftentimes, the kinematics graphs that students see in their textbooks are very clean and simple. In nature, movement is often haphazard and to simulate such movement in one...
Kinematics Graphs with Variable Initial Velocity and Acceleration
I used ChatGPT to create this simple interactive graph. Including the time taken to make 2 rounds of refinement using more prompts and the time it took to deploy it via Github, it...
Simulation of a Bouncing Ball
While I have shared a simulation of a bouncing ball made using Glowscript before , I felt that one made using GeoGebra is necessary for a more comprehensive library . It took a...
Use of System Schema to Visualise Action-Reaction Pairs
It is a common misconception for students to assume that when a book is placed on a table, its weight and the normal contact force acting on it are action-reaction pairs because...
Displacement-time graph with animation
This displacement-time graph is used in conjunction with an SLS package to help students learn how to describe motion of an object and to use gradient of a tangent to calculate...
Man in Elevator
I just took the elevator in my apartment building with the PhyPhox mobile app and recorded the acceleration in the z-direction as the lift went down and up. This was done in the...
Sky-Diving and Terminal Velocity
https://www.geogebra.org/m/wavar9bx This is a wonderful applet created by Abdul Latiff, another Physics teacher from Singapore, on how air resistance varies during a sky-dive with...
Newton's 2nd Law Applet
For a full-screen view, click here . <iframe scrolling="no" title="Dynamics Problem"...
Equation of Motion App
Access the app in full screen here: https://www.geogebra.org/m/mfvvhjrj This app is designed to give students practice in interpreting velocity-time graphs with various scenarios,...
Bouncing Ball Animation using Python
For a fullscreen view, visit https://www.glowscript.org/#/user/wboson2007/folder/MyPrograms/program/Bouncing Modified this python simulation from Dr Darren Tan's work at...
Multiple Representation of Vertical Throw
One common misconception among new learners of kinematics is that acceleration of an object being thrown upward is zero at the top of the path when it is momentarily at rest. I...
Multiple Representation in Kinematics
This is another Infographic made using Canva last year.
Pendulum-Powered Car
This pendulum-powered car is constructed using Lego Technic parts. I used mainly Lego beams to create the chassis and an “A” frame from which the pendulum is suspended. The...
Free-Body Diagrams in Two-Body Motion
Students are often confused about the forces in drawing free-body diagrams, especially so when they have to consider the different parts of multiple bodies in motion....
Two Body Problems in Dynamics
Problems involving two bodies moving together usually involve asking for the magnitude of the force between the two. For example: A 1.0 kg and a 2.0 kg box are touching each...
Measuring Difference in Drop Time Using PhyPhox
In a recent class on Kinematics, I prepared a string of 4 pendulum balls, each separated about 20 cm apart and dropped them from a height. Before that, I got students to predict...
Relationship between displacement-time and velocity-time graphs
Through this GeoGebra app, students can observe how the gradient of the displacement-time graph gives the instantaneous velocity and how the area under the velocity-time graph...
Instantaneous vs Average Velocity
This GeoGebra app allows students to observe the difference between instantaneous and average velocity from a graphical perspective.
Geogebra App for Kinematics
As one of the first topics in A-level physics, kinematics introduces JC students to the variation of velocity and displacement with acceleration. Very often, they struggle with...
Falling with Parachute
The following simulation allows users to observe the effect of air resistance on a parachutist before and after he opens his parachute. Try to open the parachute when the man...
Man in Elevator Simulation
In this simulation, students can observe the variation of the normal contact force (N) and its effect on acceleration and velocity as an elevator moves upward. Questions for...
Vertical Throw with Free Fall Simulation
This is a simulation done from scratch after attending a crash course on EJSS . It displays the velocity and acceleration vectors as an object is projected vertically upward with...
Newton's 2nd Law Experiment using Motion Sensor
For my students: To download the file and video for analysis using Tracker, right-click the file here... To verify the equation F = ma, where F is the resultant force on an...
Tracker for Understanding Bouncing Ball Problem
I've used the open-source Tracker software , a video analysis and modeling tool built for use in Physics education, for both my IP3 and JC1 classes this year. Thanks to Mr Wee Loo...
Elevator Physics
In a recent IP3 class on Newton's 2nd Law, the students were presented the "Elevator Problem" based on the THINK Cycle approach - a version of inquiry-based learning that was...
3 Common Dynamics Mistakes
After going through the topic of Dynamics in the A-level syllabus recently, it strikes me that there are several common mistakes or misconceptions that students whom I have taught...
Displacement, Velocity and Acceleration of Bouncing Ball using Datalogger
A video tutorial on the use of the Addestation datalogger with its motion sensor to measure the displacement of a bouncing ball and to observe the velocity and acceleration using...