![]() Gravity is an attractive force between two objects. ![]() Models can be used to represent systems and their interactions.Īlignment agreement: Thanks for your feedback! Science assumes that objects and events in natural systems occur in consistent patterns that are understandable through measurement and observation. This activity focuses on the following Three Dimensional Learning aspects of NGSS:ĭevelop and use a model to describe phenomena.Īlignment agreement: Thanks for your feedback!Įarth and its solar system are part of the Milky Way galaxy, which is one of many galaxies in the universe.Īlignment agreement: Thanks for your feedback! The solar system consists of the sun and a collection of objects, including planets, their moons, and asteroids that are held in orbit around the sun by its gravitational pull on them.Īlignment agreement: Thanks for your feedback! The solar system appears to have formed from a disk of dust and gas, drawn together by gravity. Describe how gravity is still acting on an object that is in orbit.ĭevelop and use a model to describe the role of gravity in the motions within galaxies and the solar system.Ĭlick to view other curriculum aligned to this Performance Expectation.Articulate that to escape the Earth's gravity, engineers must design and build huge rockets.Relate the increase in velocity of an orbiting object with the object getting farther away.Explain that an orbit is the balancing of the object's velocity with the gravitational force.This requires that engineers think logically and use their math skills to forecast exactly where a planet will be located many months in the future.Īfter this activity, students should be able to: Since Earth and Mars are always orbiting in their own paths, space travel from Earth to Mars might be compared to shooting a basketball into a moving hoop while standing on a moving platform. Life in Space: The International Space Stationĭesign Devices to Help Astronauts Eat: Lunch in Outer Space!Įngineers and scientists make amazingly precise calculations so that a spacecraft's journey is timed exactly to reach the location where a planet will be at that time. Lunar Lollipops: Reproducing the Moon Phases All these concepts can be demonstrated using Gravity Lab.Our Sun and Heat Transfer Basics: Heat It Up!Ĭooking with the Sun: Comparing Yummy Solar Cooker Designs Gravity Lab includes a short 4-page guide explaining the Newton's law of universal gravitation, the first two of the three Kepler's laws of planetary motion and the concept of gravity assist in spaceflight. Gravity lab is a perfect aid for anyone seeking a deeper understanding of physics, or just willing to play around with their own simulated universe. ![]() Should you, however, spend a day as a heavenly body, your perception would be completely changed. For us, standing here on Earth, gravitational forces always point down. By being gravitationally attracted to a rock weighing more than 13,000,000,000,000,000,000,000,000 lbs (or almost 6,000,000,000,000,000,000,000 metric tons), we are not very good at intuitively understanding the universal effects of the gravitational forces. Gravity Lab is a great tool to explore the laws of nature that govern everything in the universe. You can toggle a switch to show the acceleration vectors of the bodies, which are proportional to the forces between the bodies and inversely proportional to their masses. According to Newton's law of universal gravitation, every massive body in the universe influences every other massive body, and it works exactly the same in Gravity Lab. The positions and velocities of all the particles are recalculated in real time. It allows you to create dozens of particles with different masses and different initial velocities by simply tapping the screen or drawing a velocity vector. Gravity Lab is a gravity simulator for iPad.
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