Explore how human understanding of planetary orbits has changed throughout history in this video about Kepler's laws of planetary motion. Kepler's three laws of planetary motion accurately describe the elliptical orbits of objects around the Sun. This video presents the story of Johannes Kepler and
Given the position-time graph of a linear motion, we can interpret whether the moving object moves forward or backward (or right or left, depending on how we define the motion!). Click here to see more videos: https://alugha.com/KhanAcademy View more lessons or practice this subject at https://www
Click here to see more videos: https://alugha.com/FuseSchool So what exactly is a force? A force is just a push or pull in a particular direction. Whenever you push or pull something, you are exerting a force on it. The forces that you exert can cause three things: 1. They can change the shape
Think of a spanner loosening a fixed nut Or a child on a seesaw Or a door opening around a fixed hinge All of these things are connected by something called moments… A moment is the turning force around a fixed pivot. The pivot is the nut, or the middle of the seesaw, or the hinge. We can have one
Click here to see more videos: https://alugha.com/FuseSchool CREDITS Design & Animation: Bing Rijper Narration: Dale Bennett Script: Bethan Parry In this video, we’re going to learn about levers and gears. A force can turn an object around a hinge or a pivot. For example, opening a door uses a tur
Click here to see more videos: https://alugha.com/FuseSchool CREDITS Animation & Design: Joshua Thomas (https://www.instagram.com/jt_saiyan/?hl=en) Narration: Dale Bennet Script: Bethan Parry Which travels faster, Usain Bolt or a formula 1 car? In this video, we’ll find out how to calculate speed
You should already know that velocity-time graphs look like this... and how we can use them to map out a journey. If you’re unsure, you may want to watch this video first...In this video we’re going to look at the area under these graphs and what they represent. Let’s start by looking at a simple v
Astronomer Doris Daou explains how the forces of speed and gravity keep the Moon in a constant orbit around Earth in this animated video segment adapted from NASA. The Moon, Earth's natural satellite, seems to hover in the sky, unaffected by gravity. However, the reason the Moon stays in orbit is pr
Tools such as saws, hammers, and levers are designed to make work easier. Sometimes, the environment in which a person works dictates whether or not a certain tool will get the job done. In the microgravity environment of space, astronauts are often required to do experiments or simple repairs. On E
Discover what happens during a lunar eclipse in this video from NASA. The orbit of the Moon around Earth causes the monthly phases of the Moon; lunar eclipses occur when the Moon passes through Earth's shadow. The video shows how the appearance of the Moon changes as it passes through Earth's penumb
Discover how scientists plan to use data from the GRAIL mission and a map of the Moon's gravitational field to learn about its internal structure. By comparing data about the Moon's gravity with information about its topography, scientists can gain a better understanding of the Moon's formation and
Launched in September 2011, find out about the Gravity Recovery and Interior Laboratory (GRAIL) mission to measure the gravitational field of the Moon and study how the Moon developed over time. Animations illustrate technical aspects of the mission's design, including the launch, orbital insertion
