A direction sheet for use with this activity is available online. See Activity sheet.
Tutorial information on universal gravitation and the force of gravity can be found online at: The Physics Classroom Tutorial.
Shockwave Player not Working?
The Shockwave Player plug-in cannot be installed on mobile phones, tablets such as the iPad, and Chromebooks. Don't worry ... we have you covered. Try the HTML5 version of Gravitation at the Physics Interactives section of our website. You'll find it works quite well on most all devices.
Visit the HTML5 Version of Gravitation