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What is this?

KS3 starter. What is this?. Why is it not good for this?. © Snapshot Science , 2010. Image of vuvezela: Berndt Meyer. KS3 Activity. The vuvezela is a horn that is popular at football matches in Africa. It creates a loud noise, but how loud? Loudness is measured in decibels (dB). faint.

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What is this?

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  1. KS3 starter What is this? Why is it not good for this? © Snapshot Science, 2010 Image of vuvezela: Berndt Meyer

  2. KS3 Activity The vuvezela is a horn that is popular at football matches in Africa. It creates a loud noise, but how loud? Loudness is measured in decibels (dB) faint moderate loud very loud painful dB 0 20 40 60 80 100 120 140 160 Where do you think those go on the decibel scale above? right next to the speakers at a rock concert a vuvezela whisper lawnmower conversation alarm clock chainsaw jet engine © Snapshot Science, 2010

  3. KS3 Activity Sounds louder than 80 decibels are considered potentially dangerous. Hair cells in the inner ear and the hearing nerve can be damaged by loud sounds. This results in hearing loss. What advice would you give to people who are attending matches at the World Cup? © Snapshot Science, 2010

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