CK-12 Foundation
Least Time
What is the fastest way to get from point A to point B if you are going through two different mediums, such as air then water? Scholars explore the way light travels through air, water, acrylic, glass, and diamond as they answer this...
CK-12 Foundation
Unicycle
What is the steepness of a hill before a unicyclist slides down it rather than pedaling down it? The simulation graphs the wheel speed versus the unicycle speed as the rider goes down a hill. Scholars control the mass of the rider,...
CK-12 Foundation
Black Hole
What happens to radio waves, time, and light in and near a black hole? Young scientists explore what is known about observing frequency and time at various distances from a black hole. They control the size of the black hole and the...
CK-12 Foundation
High Energy Particles
How much energy is required to break apart an atomic nucleus and does it vary based on the type of atom? Scholars virtually experiment with a linear accelerator in order to answer these questions. They alter the voltage, length of the...
CK-12 Foundation
Lightning-Rod
Why do some buildings have lightning rods? Scholars explore the movement and attraction of opposing electrical charges through a simulation of a lightning rod. They control the cloud height, charge separation, and if the lightning rod is...
CK-12 Foundation
Bow and Arrow
Where does the energy of an arrow come from? Is it from the person, the bow, or somewhere else? A simulation allows scholars to adjust the stretch distance and the elastic constant in order to understand where the energy comes from, what...
CK-12 Foundation
Phases of the Moon
The sun can tell us what time it is with a sun dial, but can the moon do the same? Scholars play with a simulation of the phases of the moon. They control the type of moon and time of day in order to see when the sun is up and when the...
CK-12 Foundation
Rose Colored Glasses
How can we change the color of what we are seeing? The simulation allows individuals to change the color of a car's paint, the color of light pointed at the car, and the color of glasses the person is wearing. Each combination creates a...
CK-12 Foundation
Telegraph
Most pupils don't know what a telegraph is, much less how one works. A secret simulation has scholars pick the size of the primary and secondary loops, the battery voltage, and which letters in the Morse Code they want to transmit. They...
CK-12 Foundation
Subatomic Particle Zoo
Everything is made up of atoms, but what are atoms made up of? The simulation explores subatomic particles. It focuses on hadron, boson, and lepton groupings as scholars learn about quarks, neutrinos, gluons, and more.