2022年10月爱德思考试局A-Level考试开考!
A-Level考试年年有,爱德思考试局的还特别多,2022年10月爱德思考试局A-Level考试今日开考!下面马上给大家奉上A-Level考试时间安排,快来看看吧! 为更好地满足学生需求,爱德思11月IGCSE考试将扩大学科范围,提...
A-Level考试年年有,爱德思考试局的还特别多,2022年10月爱德思考试局A-Level考试今日开考!下面马上给大家奉上A-Level考试时间安排,快来看看吧! 为更好地满足学生需求,爱德思11月IGCSE考试将扩大学科范围,提...
Core Practical 6: Investigating the Speed of Sound Aim of the Experiment To measure the speed of sound in air using an oscilloscope and a signal generator Variables Independent variable?= Distance ...
Graphs of Transverse & Longitudinal Waves Graphs of Transverse Waves There are two common graphs transverse waves; Displacement against distance Displacement against time These are: Similar?bec...
Transverse Waves Transverse Waves A transverse wave is one where the particles oscillate?perpendicular?to the direction of the Propagation of the wave Direction of energy transfer Transverse waves ...
Longitudinal Waves Longitudinal Waves A longitudinal wave is one where the particles oscillate?parallel?to the; Propagation of the wave Direction of energy transfer Longitudinal waves show areas of...
The Wave Equation The Wave Equation This equation links wave speed, frequency and wavelength Where: v?= velocity of the wave (m s–1) f?= frequency of the wave (Hz) λ?= wavelength (m) The wav...
Properties of Waves Waves are generated by?oscillating sources These oscillations travel?away?from the source Oscillations can propagate through a?medium?(e.g. air, water) or in a?vac...
Area Under a Force-Extension Graph For a material which obeys Hooke's law, the elastic strain energy,?Eel?can be determined by finding the area under the force-extension graph Since this are...
Core Practical 5: Investigating Young Modulus of a Material To measure the Young Modulus of a metal in the form of a wire requires a clamped horizontal wire over a pulley (or vertical wire a...
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