Examine the factors affecting the pressure under a fluid. Run this simulation on "Earth-Like" planets with the same atmospheric pressure but different accelerations due to gravity.

Students must find the acceleration due to gravity on a planet and the impact speed of an object that has been falling from the top of a garish tower.

An exceptional tutorial on the topic of vectors that offers many helpful graphics, some of which are interactive.

This site from NASA provides an excellent tutorial on vectors and their use in physics to describe the motion of objects. Vector addition and resolution are illustrated.

Students learn that it is incorrect to believe that heavier objects fall faster than lighter objects. By close observation of falling objects, they see that it is the amount of air resistance, not the weight of an object, which...

This site examines the black hole as an object in astrophysics. Delve into this comprehensive resource that covers this concept from its history, to qualitative physics, the reality of black holes, mathematical physics and more.

Assess your understanding of Newton's three laws of motion and the ability to distinguish between the three with this interactive multiple choice quiz. Receive immediate feedback to your answers.

In this interactive physics tutorial, students explore the variety of mathematical equations that describe the motion of satellites.

Using the free-fall constants and gravity acceleration equations, we can determine many things about the position, velocity, and speed of a projectile. Here are a few examples and explanations. This is a great review for the AP Calculus...

Students investigate each other's reaction time by measuring how far a ruler falls before they can catch it. They will interpret the data and turn in a lab report describing the procedure they used and the results they discovered.

Use this site to learn about the four forces of nature. Also learn what determines the strength of a force. This question and answer site is a link of the Fermi National Accelerator Laboratory.

This lesson explains how gravitational force is related to free fall, acceleration due to gravity, and Newton's second law of motion.

This site from NASA uses a colorful graphic to illustrate why objects reach terminal velocity. Provides equation for the terminal velocity of an object. Graphic is accompanied by a simple explanation.

Background information on vectors and their use in describing motion in two dimensions. A comparison of Aristotle's and Galileo's perspectives on force and motion is given.

Defines what a gravitational field is, its value, and how to calculate it. Field-line patterns are also drawn and explained.

A page describing rotational equilibrium and non-equilibrium situations. Includes graphics, equations, and many examples.

In this physics lab activity learners investigate how mass, length and angular displacement affect the period of a simple pendulum. Students control variables, testing one variable at a time, using manual techniques (stopwatch, human...

Momentum is not only a physical principle; it is a psychological phenomenon. Students learn how the "Big Mo" of the bandwagon effect contributes to the development of fads and manias, and how modern technology and mass media accelerate...

In this culminating activity of the unit which highlights how forces play a role in engineering design and material choices, students explore and apply their knowledge of forces, friction, acceleration, and gravity in a two-part experiment.

By the end of this section, you will be able to identify and explain the properties of a projectile, such as acceleration due to gravity, range, maximum height, and trajectory; determine the location and velocity of a projectile at...

A six-lesson e-textbook covering topics in one dimension kinematics. Lessons include informational text, interactive activities, and quick, interactive comprehension checks along the way.

This essay from the NOVA Web site explores the impact Einstein made on physics and most everything we know about the cosmos.

Find the maximum height and the time to reach the maximum height for a firework that is fired vertically upward and explodes at the point where it would have started coming back down again. Information about the planet will be given to...

Find the explosion height and the time to explosion for a firework that is fired vertically upward and explodes at the point where it already coming back down again. Information about the planet will be given to them so that they can...