By the end of this section, you will be able to describe the effects of gravity on objects in motion, describe the motion of objects that are in free fall, and calculate the position and velocity of objects in free fall.

In the following interactive module, students will describe the effects of gravity on objects in motion. They will also describe the motion of objects that are in freefall and calculate the position and velocity of objects in freefall.

This lesson in high school physics on Newton's Second Law of Motion provides a discussion of free fall and air resistance, and answers, "Why do objects which encounter air resistance ultimately reach a terminal velocity?" and "In...

A demonstration involving an elephant and a feather and explanation of why all objects maintain the same acceleration in the state of free fall without any air resistance.

A learning module where students gain an understanding of the relationships between the different kinds of motion. Students will be able to explain free-fall motion and use kinematics equations to calculate problems involving falling...

[Free Registration/Login may be required to access all resource tools.] Acceleration due to gravity and why falling objects with different masses accelerate at the same rate.

Investigate the effect of gravity on objects of various mass during free fall. Predict what the position-time and velocity-time graphs will look like. Compare graphs for light and heavy objects.

The concept of air resistance is discussed in terms of why a heavier object falls faster than a lighter object when both dropped from the same height. In this discussion and animation, an elephant and feather are used as examples.

The practice problems and illustrated examples in this tutorial help students understand the acceleration of gravity. The 'Value of g' widget the tutorial refers to can be found in the Interactives section (link is in side-bar) under...