Waves 0.0 / 5 ? PhysicsWavesGCSEAll boards Created by: nancehulliusCreated on: 29-09-13 19:49 What kind of wave has the direction of energy travel parallel to the movement of the wave? longitudinal 1 of 11 What do you call a space with no particles? vacuum 2 of 11 When waves spread out due to passing through a gap or around the edge of an obstacle it is called .......... diffraction 3 of 11 What unit is frequency measured in? hertz 4 of 11 How does sound travel? vibration 5 of 11 Visible light is the portion of the electromagnetic ........... which can be seen by us. spectrum 6 of 11 The image seen on a cinema screen is a .................. realimage 7 of 11 What is a reflection of sound? echo 8 of 11 What object can be used to demonstrate refraction effectively? perspexblock 9 of 11 What piece of equipment can be used to show reflection, refraction, interference and diffraction? rippletank 10 of 11 What turns electrical signals into sound waves? microphone 11 of 11
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