Sound waves

The topic of sound and waves lends itself well to a wide variety of practical activities which allow students to develop their own understanding.  This list provides a range of suggested activities and teaching strategies, as well as resources which support non-specialists in using equipment.  From 2014, students should learn about:

• frequencies of sound waves, measured in hertz (Hz); echoes, reflection and absorption of sound
• sound needs a medium to travel in
• the speed of sound in air, in water, in solids
• sound produced by vibrations of objects, in loudspeakers, detected by their effects on microphone diaphragm and the ear drum
• sound waves are longitudinal
• the auditory range of humans and animals

Visit the secondary science webpage to access all lists: