Aqa Physics A Unit 2

The scientist has a double slit of known separation. Describe the measurements that neediness to be taken and explain how they are utilise to let the wavelength of the light. prove any necessary safety precautions and how you would arrange the frame-up to mitigate accuracy. Measurements * w mensurable with vernier calliper * D measured with a meter rule Finding the wavelength * Use ?=wsD to give out time value for ? Accuracy * Several fringe spaces measured * Centres of fringes used * Five or much fringes measured * Large value for D * D greater or partake to 2m * inglorious room * Repeat measurements Safety * forefend shing laser at a person * Laser safety goggles * Avoid reflections * Warning sign or light habitus 4 shows a nonmoving wave on a mountain range. The draw is tied onto a thin admixture bar at A and fixed at B. A vibration root causes the bar to oscillate at a chosen frequency . condone how a stationary wave is formed. because describe the key features of the stationary wave shown in Figure 4.

* Waves reflect off the hug and the rod * Waves travelling in opponent directions superpose * Waves beget same wavelength and frequency, similar bounteousness * Always cancellation at nodes and fanciful super range at antinodes * Energy is not transferred along string * 4 nodes where there is zero premium * 3 antinodes where amplitude is maximum * Wavelength 0.80m * End antinodes in phase and middle and ends in antiphase * Between node and a ntinode, amplitude of oscillation increases ! On her adjacent jump the gymnast decides to reach a height above position B. Describe and explain, in scathe of animation and work, the transformations that occur as she ascends from her lowest position A until she reaches her new position above B. * Elastic potential vigor is transformed to kinetic energy * Kinetic energy is transformed into gravitative potential energy * The gymnast must use...If you want to get a extensive essay, dedicate it on our website: BestEssayCheap.com

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