What you’ll learn10 learning objectivesChoose one objective for a focused lesson, or study the complete topic.3.1.1Waves transfer energy without• Know: waves transfer energy without transferring matterSyllabus objective3.1.2What is meant by wave motion as• Describe what is meant by wave motion as illustrated by vibrations in ropes and springs, and by experiments using water wavesSyllabus objective3.1.3Features of a wave in terms of• Describe the features of a wave in terms of wavefront, wavelength, frequency, crest (peak), trough, amplitude and wave speedSyllabus objective3.1.4Recall/use: for wave speed v = f λ• Recall/use: for wave speed v = f λSyllabus objective3.1.5For a transverse wave, the direction• Know: for a transverse wave, the direction of vibration is at right angles to the direction of propagation and understand that electromagnetic radiation, water waves and seismic S-waves (secondary) can be modelled as transverseSyllabus objective3.1.6For a longitudinal wave, the direction• Know: for a longitudinal wave, the direction of vibration is parallel to the direction of propagation and understand that sound waves and seismic P-waves (primary) can be modelled as longitudinalSyllabus objective3.1.7Waves can undergo: (a) reflection at a• Describe how waves can undergo: (a) reflection at a plane surface (b) refraction due to a change of speed (c) diffraction through a narrow gapSyllabus objective3.1.8Use of a ripple tank to show: (a)• Describe the use of a ripple tank to show: (a) reflection at a plane surface (b) refraction due to a change in speed caused by a change in depth (c) diffraction due to a gap (d) diffraction due to an edgeSyllabus objective3.1.9Wavelength and gap size affects• Describe how wavelength and gap size affects diffraction through a gapSyllabus objective3.1.10Wavelength affects diffraction at an• Describe how wavelength affects diffraction at an edgeSyllabus objective