Exploratorium
Momentum Machine
If you have a rotating office chair in your classroom, you can have physics pupils participate in this simple, yet effective demonstration of angular momentum. One partner sits in the chair, arms outstretched, holding heavy weights. The...
Perkins School for the Blind
Momentum
The laws of momentum can lead to fun! Learners with visual impairments use bowling pins and a bowling ball to model the law of conservation of momentum. They take turns bowling with differing degrees of force to explore how energy is...
National Science Teachers Association
Paper Car Crash Design
High school physical scientists collide with motion. They work in pairs to design a paper car that will protect a raw egg during a head-on collision. Measurements of distance traveled, time of run, vehicle specs, and photo gate flags are...
Exploratorium
Balancing Stick
Have some physical science fun when studying the center of gravity or center of mass. Simply have balancing artists stand a dowel on one finger and keep it from falling over! A lump of clay is added and moved up along the dowel over a...
DiscoverE
Build a Bobsled Racer
Host a design challenge of Olympic proportion! Junior engineers build their own bobsleds using simple materials. The activity focuses on kinetic and potential energy and how the center of mass affects motion on a downhill track....
Teach Engineering
Ramp and Review (for High School)
Rolling for momentum. As part of a study of mechanical energy, momentum, and friction, class members experiment rolling a ball down an incline and having it collide with a cup. Groups take multiple measurements and perform several...
Curated OER
The Physics of Sports: An 8th Grade Physical Science Project
Explore the relationship between sports and physics in a cross-curricular lesson. Middle and high schoolers prepare a multimedia presentation based on a chosen sport. They answer five physics vocabulary questions about how the laws of...
It's About Time
Automatic Triggering Devices
How does the air bag trigger in an accident? The lesson explores how automatic triggering devices work in automobiles. Using examples such as a seat belt lock and air bag, scholars design their own device to better understand the...
It's About Time
Cushioning Collisions (Computer Analysis)
Did you know the car bumper is specifically designed to save the car and not the passengers in case of an accident? Young scientists use a computer, a force probe, and a sonic ranger to experiment with external cushioning on cars.