Physics Classroom
The Physics Classroom: Elephant & Feather (Free Fall)
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.
CK-12 Foundation
Ck 12: Episd: Free Fall
[Free Registration/Login may be required to access all resource tools.] Use this opportunity to understand accelerated motion in two dimensions, free fall.
Physics Classroom
The Physics Classroom: Acceleration
Topics covered include what acceleration is, the difference between constant and non-constant acceleration, acceleration in a free-falling object, the equation used to compute acceleration, and the difference between positive and...
Open Curriculum
Open Curriculum: Acceleration and Free Fall
These notes and illustrations will help you understand the concept and properties of acceleration.
Annenberg Foundation
Annenberg Learner: Amusement Park Physics: The Principles of Free Fall
An article describing free fall principles in roller coaster rides. In addition to the explanation of free fall, an experiment is described that allows you to test free fall with a cup of water. Part of a larger presentation on roller...
Physics Classroom
The Physics Classroom: Introduction to Free Fall
A lesson on free fall covers the fact that free-falling objects do not encounter air resistance and all free-falling objects (on Earth) accelerate downwards at a rate of approximately 10 m/s/s (to be exact, 9.8 m/s/s).
Texas Instruments
Texas Instruments: Picket Fence Free Fall
In this activity, students will measure the acceleration of a freely falling body (g) to better than 0.5% precision with the help of a Picket Fence and a Photogate.
CK-12 Foundation
Ck 12 Exploration Series: Simulations: Physics: Model Rocket
[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...
CK-12 Foundation
Ck 12: Episd: Physics: Kinematics
[Free Registration/Login may be required to access all resource tools.] An online chapter focused on motion and the shapes it takes. Topics range from speed and velocity to acceleration and free fall. Find detailed visuals, learning...
Georgia Department of Education
Ga Virtual Learning: Linear Motion
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...
Department of Defense
Do Dea: Free Fall Constants for Earth
When you work with equations that show position, velocity, acceleration of objects that are flying or falling through the air, you will be using the constant that is the acceleration due to gravity. View formulas, explanations, and...
CK-12 Foundation
Ck 12: Physical Science: Acceleration Due to Gravity
[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.
Physics Classroom
The Physics Classroom: 1 D Kinematics: Acceleration
Explore illustrated examples and try some practice acceleration problems to better understand this vector quantity in physics.
NASA
Nasa: The Way Things Fall
This site from NASA compares free falling motion to falling with air resistance. Discusses Galileo's experiment. Explains why we believe all objects free fall with the same acceleration.
Vision Learning
Visionlearning: An Experiment: Acceleration During Free Fall
Animated simulation re-enacts Galileo's experiment of dropping objects off the Leaning Tower of Pisa.
Physics Classroom
The Physics Classroom: 1 D Kinematics: Acceleration of Gravity
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...
Physics Classroom
The Physics Classroom: 1 D Kinematics: How Fast? And How Far?
Students understand the physics of a free falling object through these illustrated example problems.
Physics Classroom
The Physics Classroom: 1 D Kinematics: Table of Contents
Learners examine motion with words, equations, diagrams, and graphs. Some topics investigated are position, velocity, acceleration, and free fall. The tutorial consists of lessons and problems to check for understanding.
Concord Consortium
Concord Consortium: Was Galileo Right?
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.
Physics Classroom
The Physics Classroom: Elephant and Feather: Air Resistance
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.
Khan Academy
Khan Academy: What Are the Kinematic Formulas?
Featured are the kinematic formulas or main equations you can use to analyze situations with constant acceleration.
CK-12 Foundation
Ck 12: Plix Series: Uniform Acceleration
[Free Registration/Login Required] Using the average acceleration formula, calculate the velocity of a falling ball, and then check your answer by dragging the point along the line in the given graph. After the activity, answer one...
Sophia Learning
Sophia: Gravitational Force & Newton's Second Law of Motion
This lesson explains how gravitational force is related to free fall, acceleration due to gravity, and Newton's second law of motion.
Khan Academy
Khan Academy: Freefall Review
Review the key concepts and skills for acceleration due to gravity, including analyzing motion of objects in freefall.