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Kim Cattrall on Antony & CleopatraTuesday, 31st March 2015 04:40 - Sky Arts 1 HDKim Cattrall revisits the role of the great Queen of Egypt in Shakespeare's Antony & Cleopatra. Read more: My Shakespeare: Kim Cattrall on Antony & Cleopatra
A History of Ideas - Aristotle on flourishingTuesday, 31st March 2015 12:04 - BBC Radio 4
Kim Cattrall on Antony & CleopatraWednesday, 1st April 2015 07:00 - Sky Arts 1 HD
A History of Ideas - Max Weber and the Protestant EthicWednesday, 1st April 2015 12:04 - BBC Radio 4
A History of Ideas - How do I live a good life?Available until Wednesday, 30th March 2016 14:15Melvyn Bragg and his four guests delve deeper into the philosophy of how we live a good life. Read more: OU on the BBC: A History of Ideas - How do I live a good life?
Turn your bank holiday into a badged holidayWhat are your plans for the long weekend? DIY? A trip to a windswept beach? Why not take your... Read more: Turn your bank holiday into a badged holiday
Take the photographic memory testCan you capture scenes just by looking at them? Find out with our photographic memory test. Launch now: Take the photographic memory test
Early years team work and leadershipThis unit explores aspects of teamwork and leadership for early years practitioners. Try: Early years team work and leadership now
Succeed with maths – Part 1[BETA] If you feel that maths is a mystery that you want to unravel then this short 8-week course... Try: Succeed with maths – Part 1 now
Motion under gravity
From the moment that Galileo dropped two cannonballs of different sizes and weights...
From the moment that Galileo dropped two cannonballs of different sizes and weights from the top of the Leaning Tower of Pisa mankind has been fascinated by the impact of gravity. This Unit looks at gravity, its impact on objects and how the energy involved in the movement of objects is dispersed or stored.
After studying this unit you should know:
- All objects, irrespective of their mass, experience the same acceleration g when falling freely under the influence of gravity at the same point on the Earth. The weight of an object is the force F
g due to gravity acting on the object, and for an object with mass m the weight is given by F
- If the height of an object of mass m changes by Δh, the change in gravitational energy is ΔE
- If gravity is the only force acting on an object, the sum of kinetic energy and gravitational energy is constant. Increases in kinetic energy are balanced by decreases in gravitational energy, and vice versa.
- There are various forms of potential energy, all of which depend on the position of an object rather than on its motion. The potential energy of an object increases as it moves in the opposite direction to that of the force acting on it. Strain energy depends on the extension or compression of an object.
Motion under gravity
From the moment that Galileo dropped two cannonballs of different sizes and weights from the top of the Leaning Tower of Pisa mankind has been fascinated by the impact of gravity. This unit looks at gravity, its impact on objects and how the energy involved in the movement of objects is dispersed or stored.
This unit is from our archive and is an adapted extract from How the universe works (S197) which is no longer taught by The Open University. If you want to study formally with us, you may wish to explore other courses we offer in.
This is an extract from an Open University course which is no longer available to new students. If you found this interesting you could explore more free Physics and Astronomy course units or view the range of currently available OU Physics and Astronomy courses.