SITEMAP School-college Physics Notes: Forces Section 4.2 Elasticity and work done
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Forces 4: 4.2 Work is done in stretching or compressing a material and elastic potential energy may stored or absorbed - shock absorbers
Doc Brown's Physics exam study revision notes
4.2 Work is done in stretching or compressing a material
Why does stretching a spring involve doing work?
The large sturdy spring S of the wheel suspension of a Land Rover, which is expected to absorb the impact energy of some pretty hefty bumps! On compression, the stiff spring will store a great deal of elastic energy, if only for a brief moment in time!
Key for the 5 photographic diagrams: S = suspension spring; H = the pipe conveying the hydraulic brake fluid (see hydraulics)
D = the brake drum and disc on which the brake pads in casing P are forced into contact with the smooth disc by hydraulic pressure when you press the brake pedal.
Keywords, phrases and learning objectives for elastic potential energy
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