Choo Choo Train

Model Description Relative motion and no-slip wheel relationships are brought to life by means of a moving locomotive train. This demonstration should take 10 minutes. Engineering Principle The following relationships are utilized to investigate the velocity and acceleration of the engine piston and push arm given a train velocity and instantaneous position of the wheel. […]

The Helicopter

Model Description This training aid demonstrates the translational and rotational kinematics of a rigid body in a non-rotational frame. This demonstration should take 10-15 minutes. Engineering Principle Building upon the concept of Rotation About a Fixed Axis (RAFA), the helicopter provides an excellent example to step into general planar motion (GPM) by first demonstrating the […]

The Oil Rig

Model Description This training aid demonstrates the kinematics of multiple connected rigid bodies in translation, rotation, or general planar motion.  This demonstration should take 10-15 minutes. Engineering Principle This training aid demonstrates the kinematics of a multi-body structure.  Motion for each part of the structure is classified and discussed.  A KNEX motor brings the training […]

The Tank

Model Description This training aid demonstrates the translational and rotational kinematics of a rigid body in a translating and rotational frame.  This demonstration should take 30 minutes. Engineering Principle Building upon general planar motion (GPM) in a non-rotational frame, this model develops the need to address GPM in a rotational frame by examining a projectile […]

Projectile Motion

Model Description This is a simple demonstration of the basic principles and behavior underlying projectile motion.  A Nerf gun is used to show that projectile motion can be modeled by a particle having a vertical component of motion with constant acceleration, and a horizontal component with constant velocity (zero acceleration).   This demonstration should take 5-8 […]

Rectilinear Motion

This is a simple demonstration to distinguish among a particle’s coordinates, position, displacement, and total distance traveled.  A remote-controlled car is used to demonstrate the distinctions, for a particle in rectilinear motion. This demonstration should take 5-8 minutes.

No Slip Wheel

Model Description: A disk, remote control bulldozer, and foam inner tube are utilized to demonstrate no-slip wheel relationships. This demonstration should take 8-10 minutes. Engineering Principle: Applicable equations   What you Need: Item Qty Cost and Build Time Description/Details Toy Bulldozer 1 \$15 Used for track and motion Disk With Holes 1 \$10; 20 minutes […]

When Worlds Collide

Model Description: This is a simple demonstration of the phases of a collision for central impact.  Two squeeze balls are used to show the phases. This demonstration should take 3-5 minutes. Engineering Principle: Two objects in a head-on or rear-end collision (“central impact”) will deform as they collide.  At the time of maximum deformation, they […]