Do you understand the science behind hitting a hockey puck to control the direction it moves? Pupils experiment by telling a hockey player how to hit the puck so it moves in a circular direction. Through manipulating the velocity and...

Does size or mass impact gravitational pull? Scholars experiment with force pairs to answer that question. They can change the size, mass, and distance between the objects using an engaging simulatoin. This allows pupils to visualize the...

Can a horse pull more than its weight? A simple simulation answers this question and more. Pupils adjust the mass in a cart, the mass of the horse, the acceleration of the horse, and the angle of the tension rope between the horse and...

Blast off! How do satellites, space shuttles, and space stations escape Earth's gravity and achieve orbit? Young astronauts study rocket science (literally) with an interactive lesson. They discover the four main uses for satellites, how...

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...

In this online interactive philosophy instructional activity, students respond to 10 short answer and essay questions about Galileo's contributions to science. 

[Free Registration/Login Required] Learn about the relationship between position, velocity, and acceleration for two objects in one-dimensional motion. Experiment with varying approaches to the race for both Irwin and Ruthie to see how...

[Free Registration/Login Required] Learn about adding force vectors in two dimensions using the example of a painting hanging from two strings. Experiment with variables of weight and angles to hang a portrait in this physics simulation....

[Free Registration/Login Required] Learn about the relationship between velocity and position for a swimmer. Adjust the velocity of the legs, streamline, and arms to experiment with the slope of velocity in the simulation swimmer. Dig a...

[Free Registration/Login Required] Learn about the relationship between position and velocity for a model rocket during launch and in free-fall. Experiment with rocket mass, rocket thrust, and rocket burn time to understand the...

Experience the effect of friction, air resistance, and applied force upon a sledder. The speed, acceleration, and force values are displayed as the sled moves. Learners can vary the mass of the sledder and the size of the parachute...

Students are asked to create a bungee jump that will protect a hard-boiled egg from breaking. A force sensor is needed to measure the push/pull forces on the egg. Data is inserted into force-time graphs. After completing three...

This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...

An early astronaut's experiences teach students that Newton's third law of motion-for every action, there is an equal and opposite reaction-applies both on Earth and in outer space.