Do you know how much you are accelerating down toward the center of Earth? This video will explore how to use Newton's Law of Gravitation to figure it out. [8:37]

A video giving another example of how to calculate the force of gravity using Newton's Law of Gravitation. [8:16]

View this video that relates Newton's Law of Motion to the operation on airplanes. Learn how mass of a person can be calculated by dividing the weight of the person to the force of gravity. [12:08]

This video lesson explores Newton's Third Law of Motion through examination of several real world examples of this law in action, including that of a donkey cart - a site common in the streets of Pakistan. Students will understand that...

This video lecture will use the Universal Law of Gravitation to calculate the acceleration due to gravity at the surface of the Earth. Video will then calculate the space station's acceleration due to gravity. [10:12]

Basics of gravity and the Law of Universal Gravitation. [15:42]

A discussion of gravity and Newton's Law of Gravitation. [8:37]

A second video on the topic of the law of gravitation. It examines gravitational forces on a planet and in space.

Learn why objects fall to the ground with Newton's Law of Universal Gravitation as explained by this video. Video will explain history of discovery of the concept of gravity. It will also show how to solve for the force of gravity. [15:42]

Presents an analysis of a problem where a brick and a feather are dropped on the moon to see which would hit the ground sooner. This is compared to the gravity on the Earth, where the air resistance on the objects would produce a...

From the The Electronic Universe Project web site. This page states and explains Kepler's three laws of planetary motion. Includes some downloadable movie clips and associated sound files. Discusses Ptolemy's attempt to explain...

Zog is introduced to Newton's basic laws of motion. By observing objects on earth and in space, Zog learns that nothing can start moving, speed up, slow down, change direction or stop unless a force is applied to it -- even if the force...

What is the acceleration due to gravity at the space station? [10:13]

Video lecture explains why astronauts appear weightless despite being near the Earth. [7:12]

A video exploring the acceleration due to gravity at the space station. [10:12]

This video [4:36] will first explore a single particle under the influence of gravity. Click the link to check out the Effects lesson.

Sal Khan explains how a block of wood is kept stationary by the force of friction (correction made in next video). [8:40]

I'm sure you've all heard about Isaac Newton and that apple that fell on his head and how that was a huge deal to our understanding of gravity. Well, let's talk about that. In this video episode of Crash Course Physics, Shini sits down...

When you fall thousands of feet from the sky, it seems like something strange is happening with the laws of physics. Turns out, everything relies on a simple force - DRAG! Watch these MIT students demonstrate fun moves while skydiving!...

David Christian gives a TED talk covering the Universe's 13.8 billion year history in 18 minutes.

Find out why gravity gets so strong near dense objects. [8:13]

Newton and Einstein had big ideas but needed an eclipse to prove them. And scientists are still pursuing secrets of the universe one eclipse at a time. [6:09]

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

The objective of this video lesson is to correct the misconception in the students' understanding of centrifugal force. The lesson will work to clarify this misconception by using Newton's three laws of motion, particularly the law of...