Eisco Labs: Bell in Vacuum Experiment Apparatus

$53.98
& Free Shipping over $69* Exclusions Apply
SKU: 261390
  • Vacuum Experiment
  • Physics Apparatus
  • Educational Tools
Adding to cart… The item has been added

Details

The Bell in Vacuum Experiment is a classic physics demonstration that uses an audible buzzer in a vacuum to show how sound waves require a medium through which to travel. This experiment is a great way for students to learn about the properties and dependencies of mechanical waves. The set includes an acrylic bell jar, a rubber stopper fitted with lead plugs, and an electric buzzer. As air is removed from the closed system inside the bell jar, the sound of the buzzer becomes proportionately fainter. To conduct the experiment, a vacuum plate, vacuum pump, and 3-6V DC power source are required but not supplied. Size of bell jar: 10"H x 5.7" dia.

  • Ingenious apparatus utilizes an audible buzzer in a vacuum to demonstrate how sound waves require a medium through which to travel
  • Provide your students with a sensory experience by which they can observe the properties and dependencies of mechanical waves
  • Designed by staff physicists and bench tested to ensure accurate and repeatable results
  • Set includes (1) acrylic bell jar, rubber stopper fitted with lead plugs, and electric buzzer
  • A vacuum plate, vacuum pump, and 3-6V DC power source are required but not supplied

Specifications

You May Also Like

What Educators are Saying About Geyer

Justin has been nothing but helpful and professional in my requests for these Boeing Defense requirements. He has been able to answer my questions and concerns quickly, and helped in securing the order that I may have made with another supplier had be not been the value-add that he is to your company. I hope his merit raise this FY was "exceeds expectations".

Jesse C.

..I contacted Geyer via email. I had an email back within minutes!.. A back and forth via email sometimes takes days with other companies and customer service doesn’t happen like this very often. When it does, it’s much appreciated. Brett at Geyer was very polite and accommodating!

John C.

The customer service rep went as far as to reach out to the manufacturer of a product to answer my question, and then provided pictures. She really went above and beyond and answered the question thoroughly and gave me exactly the information I was looking for. This entire process was also extremely fast.

Robert C.

I called to ask how to submit a Tax Exempt Certificate for my library and spoke to a real person, no automation or asking me to press a number. He was friendly, helpful and got our Tax Exempt status established immediately.

Mischelle F.

...I don't think I've ever experienced that level of customer service before, and taking it into consideration along with the quality of their products, I would absolutely recommend Geyer to fellow teachers.

Robert S.

Trusted By

!