waves :: essays research papers

INERNATIONAL BACCALAUREATE SUBSIDIARY LEVELWAVES SUMMARY4.1 Travelling fly high characteristicsA medium is a material through which a thrive passes.When a wave passes, separately part of the medium moves away from its normal fructify and then returns. This is called an oscillation. Oscillations within the medium atomic number 18 slight movements either case of the normal position. The wave motion is the disturbance that passes through the medium. A wave pulse causes the medium to have matchless oscillation. A continuous traveling wave causes the medium to keep oscillating. Waves transfer energy without transporting matter because each part of the medium oscillates on the spot.A transverse pulse causes the bounciness to move at right angles to the rush of motion of the pulse.A longitudinal pulse causes the spring to move parallel to the direction of motion of the pulse.The direction of propagation is at right angles to the wavefront.The displacement at a school principal i s how much the medium has been displaced from its normal position. Displacements are given + or - signs depending on the direction of the displacement. Amplitude is the largest distance from the normal position that the medium is displaced.The wavelength l of a wave is the distance from champion point to the next interchangeable point.The period T of a wave is the m in seconds that it takes one wavelength to pass by. In this time the medium will complete one oscillation. The frequency f of the wave is the number of wavelengths that pass each second. relative frequency and period are reciprocals. T = 1/f.The urge on of a wave is equal to its frequency times its wavelength.A displacement/position represent shows the displacement of the different sections of a medium.A displacement/time graph shows the displacement of one point of a medium as time elapses.The speed of the particles of a medium is a maximum when their displacement is zero.The speed of the particles of a medium is zero where the medium has maximum displacement.For a longitudinal wave, the medium has a high wardrobe called a abridgement where particles are closer than normal.For a longitudinal wave, the medium has a low pressure called a rarefaction where particles are further apart than normal.The particles around a crush move in the same direction as the wave.The particles around a rarefaction move in the opposite direction to the wave.The particles near a compression and rarefaction have small displacements.The particles where the pressure is normal, have large displacements.