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GCSE Bitesize was launched in January 1998, covering seven subjects. For each subject, a one- or two-hour long TV programme would be broadcast overnight in the BBC Learning Zone block, and supporting material was available in books and on the BBC website. At the time, only around 9% of UK households had access to the internet at home.
This is an accepted version of this page This is the latest accepted revision, reviewed on 24 February 2025. English physicist and musician (born 1968) This article is about the English physicist often on TV. For the Scottish actor, see Brian Cox (actor). For other people with this name, see Brian Cox. Brian Cox CBE FRS Cox in 2016 Born (1968-03-03) 3 March 1968 (age 56) Oldham, England ...
A static equilibrium between two forces is the most usual way of measuring forces, using simple devices such as weighing scales and spring balances. For example, an object suspended on a vertical spring scale experiences the force of gravity acting on the object balanced by a force applied by the "spring reaction force", which equals the object ...
February 2010 saw Kate taking a new role as presenter of BFBS TV's weekday evening news programme British Forces News. [ 3 ] In 2019-2020 Kate worked with Slater and Gordon Lawyers on a series of podcasts exploring the stories of those who have gone through the civil justice system, and the legal teams who supported them through it.
The forces at play in the case of a curved surface. Red: gravity Green: the normal force Blue: the net resultant centripetal force. To demonstrate the Coriolis effect, a parabolic turntable can be used. On a flat turntable, the inertia of a co-rotating object forces it off the edge.
The forces acting on a body add as vectors, and so the total force on a body depends upon both the magnitudes and the directions of the individual forces. [ 23 ] : 58 When the net force on a body is equal to zero, then by Newton's second law, the body does not accelerate, and it is said to be in mechanical equilibrium .
Work is dependent on the displacement as well as the force acting on an object. As a particle moves through a force field along a path C, the work done by the force is a line integral:
Magnitude Value Item 1 N 1.4 N The weight of a smartphone [13] [14]: 2.5 N Typical thrust of a Dual-Stage 4-Grid ion thruster.: 9.8 N One kilogram-force, nominal weight of a 1 kg (2.2 lb) object at sea level on Earth [15]