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United Scientific™ Buzzer in a Vacuum

Catalog No. S000858
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S000858 5+
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Prop 65
Catalog No. S000858 Supplier United Scientific™ Supplier No. VACUMBUZZR
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Prop 65

Description

This Buzzer in a Vacuum apparatus demonstrates that light can travel in a near vacuum, but sound does not.

The cushioned bottom vacuum jar holds a buzzer with blinking LED lights. As air is evacuated out of the jar, the blinking lights are easily visible but the sound from the buzzer decreases. This provides evidence that sound needs a medium to travel through but light does not. The sound will not completely disappear but will decrease noticeably. Even without the buzzer and lights, this device can serve as a small vacuum jar for other experiments.

  • Required but not included are 4 AAA batteries and a vacuum pump.
  • Tubing: 1 m long, inner diameter is 6 mm
  • Outside dimensions of Bell jar: 106 mm tall x 90 mm diameter
  • Inside dimensionsof Bell jar: 96 mm tall x 84 mm diameter
  • Nozzle diameter on top: 7.5 mm
  • Battery operated
  • Includes flashing LEDs and a buzzer
  • Bell Jar gasket seals creates a vacuum
  • Includes activity guide

Specifications

Grade 5+
Material Plastic
Class Size 1 Lab Group
Product Type Buzzer in a Vacuum