Statistics for G481 - Mechanics - OCR Definitions - Work and Energy

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Hint	Answer	% Correct
Work Done	Force multiplied by the distance in the direction of the force	100%
Young's Modulus	Stress / Strain	100%
Strain	The deformation per unit of the original length (Extension / Original Length)	100%
Stress	The force per unit cross sectional area (Force/Area)	100%
Ultimate Tensile Strength	Breaking stress for a material	0%
Brittle Material	Does not have a plastic region, breaks at elastic limit	0%
Principle of Conservation of Energy	Energy cannot be created or destroyed, only transformed into other forms	0%
Hooke's Law	The extension of a spring is directly proportional to the force applied to it (within elastic region)	0%
Special Theory of Relativity	The mass of an object increases as it approaches the speed of light	0%
Elastic Limit	The point after which a material does not return to its original form when stress is removed	0%
Power	The rate at which work is done (Energy/Time)	0%
The Watt	The transfer of energy of one joule per second	0%
The Joule	The work done moving 1N through 1m in the direction of the force	0%
Plastic Deformation	When the material does not return to its original length/shape/size	0%