CK-12 Foundation
Pan Flute
How can a pan flute sound one note while we hear a chord? The simulation explores sound waves, vibrations, and harmonics at the molecular level. Scholars control the pipe into which air is being blown, the length of the pipe, and which...
CK-12 Foundation
Model Rocket
Acceleration, velocity, mass, and gravity all play a role in the motion of a rocket. Young scientists explore the connection among these components using an interactive tutorial. They adjust the mass and thrust force to experiment with...
CK-12 Foundation
Irwin and Ruthie
Learners compare acceleration to displacement through an interactive tutorial that permits them to adjust the running strategy of two robots and watch them race. A graph displays the robot's velocity over time and another shows their...
CK-12 Foundation
Butterfly Stroke
Swimmers improve their times by understanding the physics of their sport. As a swimmer moves through the water, the efficiency of motion affects the resulting velocity. Through an interactive simulation, pupils change the level of motion...
CK-12 Foundation
Tire Pressure
Learners use an interactive simulation to explore the connection between force and air pressure. They adjust the mass of a vehicle and air pressure in its tires and predict the result. As the vehicle's mass increases, the tire pressure...
CK-12 Foundation
Portrait Gallery
An interactive lesson explores the effect of force angles on resulting forces. Learners adjust angles of strings supporting hanging portraits and watch the effects on the resultant force. Vector diagrams provide a visual representation...
CK-12 Foundation
Newton's Cannon
Gravity does more than keep our feet on the ground — it holds a satellite in orbit, too. Help learners understand the effects of gravity on an orbiting object through a simulation activity. Individuals adjust a launch speed and watch as...
CK-12 Foundation
Bobsled
Bobsled riders' safety depends on skill ... and physics! Learners use a simulation to understand the physics behind the sport. They manipulate the speed, mass, and/or turn radius of the sled and watch the effects on the centripetal force.
CK-12 Foundation
Irwin 2D
Learners explore two-dimensional motion through visual modeling with an interactive lesson that allows them to control the path of a robot. Graphs show both the horizontal and vertical motion as the robot continues through its entire route.
CK-12 Foundation
At the Crossroads
Young scientists investigate methods of comparing standard and metric units with a technology-enhanced lesson that builds a connection between conversion ratios and the corresponding units. The simulation allows learners to manipulate...
CK-12 Foundation
Cassegrain Telescope
How does a telescope magnify images? Learners first watch a tutorial explaining the basic construction of a telescope. Then they interact with a simulation that allows for changes in the location and diameter of the reflecting mirrors....
CK-12 Foundation
Galvanometer
In 1820, Hans Christian Orstead discovered the link between electricity and magnetism, which allows us to measure current and voltage. The simulation allows scholars to observe the inner workings of an ammeter and voltmeter as they...
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
Field Lines
The earth has a giant magnetic field caused by the liquid iron that constantly moves in the outer core. Scholars explore the magnetic fields of four different planets. The strength and alignment of the poles relates to the implications...
CK-12 Foundation
Touch Screen
Touch screens are becoming more common, but how do they work? The simulation shows the electric potential versus system charge as scholars alter three variables. The schematic of the capacitance demonstrates the set up as each variable...
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
Power Lines
How does electricity travel through power lines? The simulation demonstrates the how changes in voltage and resistance are related to the distance between power polls and the thickness of the cable. Scholars control three variables in...
CK-12 Foundation
Flashing Neon Light
How does a neon light work and does it actually contain the gas neon? An enlightening simulation encourages pupils to play with circuits and neon lights. They control the capacitance, resistance, and color of the bulb, and the simulation...
CK-12 Foundation
Flashlight
In a simple circuit, does electricity start instantly? A simulation encourages thinking about the flow of electrons at a microscopic level. Pupils control the voltage, resistance, and switch in order to observe the change in both ideal...
CK-12 Foundation
Diamond Cut
How do jewelers tell the difference between diamonds, glass, and cubic zirconia? A sparkling simulation demonstrates how to use a ray of light to determine the substance and ideal shape for a diamond. Scholars control the material,...
CK-12 Foundation
Contact Lens
How do contact lenses work? The simulation allows young scientists to explore focal length and lens type to see how and why contact lenses work. Pupils control the focal length for an eye and a lens, the type of lens, and the distance...
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
Magnifying Glass
How can a magnifying glass or reading glasses make things appear larger? Scholars simulate moving a lens closer or farther from an object to observe the resulting image. They also alter the lens focal length. The simulation shows 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...