What you’ll learn7 learning objectivesChoose one objective for a focused lesson, or study the complete topic.7.1.1What is meant by wave motion as illustrated by vibration in ropes, springs• describe what is meant by wave motion as illustrated by vibration in ropes, springs and ripple tanksSyllabus objective7.1.2The terms displacement, amplitude, phase difference, period, frequency• understand and use the terms displacement, amplitude, phase difference, period, frequency, wavelength and speedSyllabus objective7.1.3The use of the time-base and y-gain of a cathode-ray oscilloscope (CRO) to• understand the use of the time-base and y-gain of a cathode-ray oscilloscope (CRO) to determine frequency and amplitudeSyllabus objective7.1.4The definitions of speed, frequency and wavelength, the wave equation v = f• derive, using the definitions of speed, frequency and wavelength, the wave equation v = f λSyllabus objective7.1.5V = f λ• recall and use v = f λSyllabus objective7.1.6Energy is transferred by a progressive wave• understand that energy is transferred by a progressive waveSyllabus objective7.1.7Intensity = power/area and intensity ∝ (amplitude)2• recall and use intensity = power/area and intensity ∝ (amplitude)2 for a progressive waveSyllabus objective