Bozeman Science
PS2B - Types of Interactions
Paul Andersen explains how objects interact when touching and at a distance. Electromagnetic forces are very important when objects are touching and fields explain both electromagnetic and gravitational forces. The strong and weak...
Schooling Online
Physics Advanced Mechanics: Motion in Gravitational Fields - Gravitational Force
Gravity is a heart-warming story of attraction. These farm animals would fall for each other even if the laws of Physics stop working! This lesson will formally revisit the gravitational force (from year 11), focusing on Newton’s Law of...
Schooling Online
Physics Advanced Mechanics: Motion in Gravitational Fields - Escape Velocity
We’ve all heard the saying, “what goes up must come back down.” But when we launch rockets and satellites into space, they (usually) don’t come back! Let’s prove this saying wrong, using Physics! This lesson will introduce and derive the...
Bozeman Science
Bozeman Science: Gravitational Field Strength
Find out how the gravitational field strength is directly related to the mass of the object and indirectly related to the square of the distance from the center of mass. [5:38]
Crash Course
Crash Course Kids 13.1: The Great Escape
Do you know how many people have been to the moon? Only 12! Part of the reason it's so few is because of how difficult it is to escape Earth and get into space in the first place. In this episode of Crash Course Kids, Sabrina talks about...
Crash Course
Crash Course Kids 13.2: Over (To) the Moon
Do you want to be an astronaut? Would you like to someday walk on the moon? Well, you better learn a little about gravity so you can escape from Earth and head into space. Today, Sabrina chats with us about what it takes to get to the...
Khan Academy
Khan Academy: Viewing G as Value of Earth's Gravitational Field Near Surface
Viewing g as the value of Earth's gravitational field near the surface, rather than as the acceleration due to gravity near Earth's surface for an object in freefall. [7:30]
Khan Academy
Khan Academy: Viewing G as Value of Earth's Gravitational Field Near the Surface
Sal Khan explains g as the value of Earth's gravitational field near the surface rather than the acceleration due to gravity near Earth's surface for an object in freefall. [7:30]