Already Registered?
Sign inAnyone can learn for free on OpenLearn, but signing-up will give you access to your personal learning profile and record of achievements that you earn while you study.
Anyone can learn for free on OpenLearn but creating an account lets you set up a personal learning profile which tracks your course progress and gives you access to Statements of Participation and digital badges you earn along the way. Sign-up now!
This free course is available to start right now. Review the full course description and key learning outcomes and create an account and enrol if you want a free statement of participation.
Answer – thanks to orbital resonance with Europa, the varying tidal forces on Io caused by the eccentricity of its orbit around Jupiter are so strong that Io’s tidal bulges rise and fall by up to 100 m during a single orbit, and also migrate to and fro a little. This distortion generates an immense amount of heat, fuelling the most volcanic body in the Solar System.
As you work through this course you will need various resources to help you complete some of the activities.
Making the decision to study can be a big step, which is why you'll want a trusted University.
The Open University has over 40 years’ experience delivering flexible learning and 170,000 students are studying with us right now.
Take a look at all Open University courses.
If you are new to university level study, find out more about the types of qualifications we offer, including our entry level Access courses and Certificates.
Not ready for University study then browse over 900 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.
Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.
©1999-2018. All rights reserved. The Open University is incorporated by Royal Charter (RC 000391), an exempt charity in England & Wales and a charity registered in Scotland (SC 038302). The Open University is authorised and regulated by the Financial Conduct Authority in relation to its secondary activity of credit broking.