Area under a Force-Extension Graph The work done in stretching a material is equal to the force multiplied by the distance moved Therefore, the area under a force-extension graph is equal to the wo...
Elastic & Plastic Deformation Elastic deformation: when the load is removed, the object will return to its original shape Plastic deformation: when the load is removed, the object will not retu...
Stress, Strain & the Young Modulus Stress Tensile stress is the applied force per unit cross sectional area of a material Stress equation The ultimate tensile stress is the maximum force per or...
Hooke's Law A material obeys Hooke’s Law if its extension is directly proportional to the applied force (load) The Force v Extension graph is a straight line through the origin (see “Extension and ...
Tensile Force Forces don’t just change the motion of a body, but can change the size and shape of them too. This is known as deformation Forces in opposite directions stretch or compress a body Whe...
Derivation of KE = 1/2mv2 Kinetic energy is energy an object has due to its motion (or velocity) A force can make an object accelerate; work is done by the force and energy is transferred to the ob...
Derivation of GPE = mgh Gravitational potential energy is energy stored in a mass due to its position in a gravitational field When a heavy object is lifted, work is done since the object is provid...
对于众多留学生来说，申请英国大学的时候，除了看学校的综合排名、专业排名之外，还有一个值得参考的重要指标，那就是毕业生就业情况，希望未来能够留在英国工作。英国留学生留英就业，哪些专业更有优势？ 01 生...
Derivation of P = Fv Moving power is defined by the equation: This equation is only relevant where a constant force moves a body at constant velocity. Power is required in order to produce an accel...
