Build a Disk Siren
Active Time
45 minutes to 1 hour
Total Project Time
45 minutes to 1 hour
Key Concepts
Sound, siren, frequency, pitch
![]() IntroductionIf you live in an urban area, you probably hear them almost every day: sirens. Police cars, ambulances, fire trucks—they all can come blaring. Their wailing sounds are piercingly loud to help alert others to clear the road in front of them. But have you ever thought about how this loud noise is generated? Make your own disk siren in this activity and find out for yourself. CreditsSvenja Lohner, PhD, Science Buddies
Sabine De Brabandere, PhD, Science Buddies
This activity is not appropriate for use as a science fair project. Good science fair projects have a stronger focus on controlling variables, taking accurate measurements, and analyzing data. To find a science fair project that is just right for you, browse our library of over 1,200 Science Fair Project Ideas or use the Topic Selection Wizard to get a personalized project recommendation.
Materials
Reviews |
Active Time
45 minutes to 1 hour
Total Project Time
45 minutes to 1 hour
Key Concepts
Sound, siren, frequency, pitch
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