Slinky Spring
Product Code : SCL-EAE-11226
Quick answer: The Slinky Spring is a long, loosely coiled spring used to demonstrate mechanical waves by hand. Moving one end sideways sends a transverse pulse along it, while pushing and releasing a few coils sends a longitudinal pulse of compressions and rarefactions. No power supply is needed. Lab Exports manufactures it in Delhi for schools and colleges.
Specifications
| Parameter | Detail |
|---|---|
| Demonstrates | Transverse waves, longitudinal waves, pulses and oscillations |
| Operation | Manual classroom demonstration, no power supply |
| Topic | Sound, waves and oscillation |
Spring material, coil diameter, relaxed length and spring constant are not listed on this page; email [email protected] with the house code for the current size. Stands, clamps and wave generators are not part of the listed supply.
How it is used
A wave carries energy from place to place without carrying the medium with it. On a stretched slinky each coil moves only a little about its rest position while the disturbance travels the whole length, which makes this idea easy to see. In a transverse wave the coils move at right angles to the direction of travel; in a longitudinal wave, as in sound, they move back and forth along it.
- Choose a clear floor or a long laboratory table.
- Two students hold opposite ends and stretch the spring gently, without overstretching the coils.
- Move one end sideways once to send a transverse pulse, and watch it reflect from the far end.
- Push several coils together and release them to send a longitudinal pulse.
- Shake one end steadily to set up a continuous wave and compare the coil motion with the wave travel.
With a fixed far end a pulse comes back inverted, which introduces reflection, and a steady shake at the right rate shows a standing wave pattern qualitatively.
Key features
- Shows both transverse and longitudinal waves with one spring
- Makes a travelling pulse and its reflection easy to watch
- Helps explain amplitude, wavelength and direction of travel
- Hand operated, no power supply required
- Suits whole-class demonstrations and supervised group activities
- Reusable for many lessons if not overstretched or twisted
Documentation and supply
Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the slinky spring at its works in Laxmi Nagar, Delhi, and supplies it to schools and colleges in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
Related Electrical and Electronics products
- Hooke's Law Apparatus (SCL-EAE-11227)
- Newton's Law of Cooling (SCL-EAE-11213)
- Steam Engine Model with Dynamo (SCL-EAE-11212)
- Brass Wire (100 gm) (SCL-EAE-11209)
- Step Down Transformer (SCL-EAE-11207)
- Manganin Wire (100gm) (SCL-EAE-11246)
The full range is in the Electrical and Electronics section of the Physics Lab range.
Frequently asked questions
What does a slinky spring demonstrate?
It demonstrates transverse and longitudinal waves, travelling pulses and their reflection, and the difference between the motion of the coils and the motion of the wave.
How is a longitudinal wave made on a slinky?
Push a few coils together at one end and release them. A compression followed by a rarefaction travels along the spring, like a sound wave in air.
What is the price of the slinky spring?
Prices are not published on the website. Add the slinky spring to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code SCL-EAE-11226 and the quantity, to receive a quotation.
Does Lab Exports manufacture the slinky spring?
Yes. Lab Exports manufactures the slinky spring at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code SCL-EAE-11226.
Request a quote
Email [email protected] with the house code SCL-EAE-11226 and the quantity, or add the slinky spring to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
