SCIENCE12 Physics ATAR: Gravitation

A gravitational field is a model used to explain the influences that a massive body extends into the space around itself, producing a force on another massive body. 

Source: Wikipedia, 2022, URL: https://en.wikipedia.org/wiki/Gravitational_field

Source: Wikipedia, Gravity of Earth, URL: https://en.wikipedia.org/wiki/Gravity_of_Earth

Gravity field model

Image source: https://www.schoolphysics.co.uk/age16-19/Mechanics/Gravitation/text/Gravitational_potential_gradient/index.html

Introduction to Newton's Law of Gravitation

meriSTEM Gravitation and Motion will take you through the Law of universal gravitation, projectile motion, uniform circular motion, orbits, gravitational fields and introduce general relativity.

Source: ClickView, meriStem Senior Sciences, 2020, Rated G, Duration 323, URL: https://online.clickview.com.au/exchange/videos/22982333/1-4-introduction-to-newton-s-law-of-gravitation

Newton's Law of Universal Gravitation

Professor Dave explains Newton's Law of Universal Gravitation.

Source: ClickView, Professor Dave Explains, 2017, Rated E, Duration 7:53, URL: https://online.clickview.com.au/libraries/videos/46441211/newton-s-law-of-universal-gravitation

Law of Universal Gravitation equation

meriSTEM Gravitation and Motion will take you through the Law of universal gravitation, projectile motion, uniform circular motion, orbits, gravitational fields and introduce general relativity.

Source: ClickView, 2020, Rated G, Duration 1:24, URL: https://online.clickview.com.au/exchange/videos/22982252/1-5-law-of-universal-gravitation-equation

Microgravity is a condition in which the apparent effects of gravity are very small.

Significance: Microgravity is useful for many scientific applications that cannot be performed in an environment where gravity is a dominating force. It is also a problem humans encounter during spaceflight and in the potential of inhabiting space environments.

For more information on microgravity, environments, research uses and conditions, visit explora by EBSCO.

Source: Ebscohost, Microgravity. By: Dahlke, Scott R., Salem Press Encyclopedia of Science, 2021, URL: https://search.ebscohost.com/login.aspx?direct=true&AuthType=ip,sso&db=tol&AN=89407147&custid=ns126408

Energy of orbital systems

This clip examines escape velocity and energy of orbital systems, including gravitational potential energy in radial gravitational fields in a variety of situations.

Source: ClickView, 2017, Rated E, Duration 8:02, URL: https://online.clickview.com.au/libraries/videos/5399411/energy-of-orbital-systems

Orbits of satellites

Constant unbalanced forces, known as centripetal forces, cause planets, moons and stars in the universe to orbit one another. This clip, aimed at senior level students of physics, examines fundamental aspects of orbital motion of satellites in our solar system and beyond, including physical quantities affecting orbital motion, Kepler’s laws of planetary motion and orbital properties and their uses.

Source: ClickView, 2017, Rated E, Duration 12:53, URL:https://online.clickview.com.au/libraries/videos/5428721/orbits-of-satellites

7 scientific breakthroughs that unlocked the age of technology [techradar]

From powering the industrial revolution to sparking the electrical era and unlocking the secrets of the stars, physics has underpinned our technological adventure into the 21st Century.

Artificial satellites [Science Learning Hub]

An artificial satellite is an object that people have made and launched into orbit using rockets. There are currently over a thousand active satellites orbiting the Earth. 

GeoEye-1 Satellite images [Satellite Imaging Corp]

Different images from a satellite, showing the ways it can be used.

An interactive that is an introduction to Newton's gravitation equation.

Source: The Physics Classroom, URL: https://www.physicsclassroom.com/Physics-Interactives/Circular-and-Satellite-Motion/Gravitational-Fields/Gravitational-Fields-Interactive