# CoolStuff Blog

##### Kinetic Energy and Velocity

Subscribe to the CoolStuff Newsletter and get notified when our next blog is released. Featured Products Download our FREE Kinetic Energy Lab Guide to use as an additional resource with our video. INTRODUCTION In order for students to solve energy...

##### Forces and Motion

Subscribe to the CoolStuff Newsletter and get notified when our next blog is released. Featured Products Download our FREE Acceleration Lab Guide to use as an additional resource with our video. INTRODUCTION In an introductory physics class, students need to...

##### Understanding the Relationship Between Mass and Weight

Subscribe to the CoolStuff Newsletter and get notified when our next blog is released. Featured Products Download our FREE Mass and Weight Lab Guide to use as an additional resource with our video. INTRODUCTION Students often have a hard time...

##### Representing Motion (Constant Velocity)

We would love to know how you use the Constant Velocity Car in Your Labs! Share your thoughts and ideas in the comments section below. You never know who you might inspire! Subscribe to the CoolStuff Newsletter and get notified...

##### Demonstrating The Fundamentals of Electric Circuits

Subscribe to the CoolStuff Newsletter and get notified when our next blog is released. Electric Circuits are an essential topic that cover the conservation of charge, the conservation of energy, the flow of current and the concept of voltage. In...

##### Kinetic Energy Demonstrated With Newton's Cradle & Colliding Steel Spheres

Subscribe to the CoolStuff Newsletter and get notified when our next blog is released. Explore the science of car crashes at classroom.iihs.org Featured Products Newton’s Cradle is a popular device that shows the energy transfer between moving spheres and a...

##### Centripetal Force Demonstrated With a Twirling Tray

Subscribe to the CoolStuff Newsletter and get notified when our next blog is released. Explore the science of car crashes at classroom.iihs.org The swinging bucket of water has been a teacher favorite for centuries. Teachers typically swing the bucket in...

##### 7 Energy and Momentum Demos That Will  Engage Your Students!
Aside from the Newton’s Cradle and the Faith in Physics pendulum, there are not very many well known energy and momentum demonstrations. In this video and article I write to resolve this. I have especially focused on energy because those...
##### Top 10 Physics Demos You're Not Doing!
This video is a collection of demonstrations that are either original or very rare – and you should be doing them. They come from many physics demonstrations that I have developed over the years. Of course, there are more than...
##### A Better way of Demonstrating Rotational Inertia

Subscribe to the CoolStuff Newsletter and get notified when our next blog is released. Featured Products A Better Way of Demonstrating Rotational Inertia  Have you ever struggled to describe Rotational Inertia to your students? Even worse, have you ever struggled...

##### Reflection, Refraction, Diffraction & Interference...That's COOL!

Subscribe to the CoolStuff Newsletter and get notified when our next blog is released. Featured Products Reflection, Refraction, Diffraction & Interference...That's COOL! The Mini Ripple Tank is a great way to address the wave-energy standards and to teach about the...

##### Principia Mathematica: Let's Revisit Newton's Laws
Newton’s Principia Mathematica, the book published in 1687, contains Newton’s three laws of motion. Most people think he wrote it to explain forces on blocks, falling stones, and pulleys. But that’s not true. The purpose of the book was to...