Advanced Placement / Physics

Planck's Constant

In this lab, students will use a voltage–current sensor and an AC/DC electronics laboratory to measure the turn-on voltage of various colors of LEDs and then plot the turn-on voltage versus LED frequency to determine the value of Planck’s constant.

Preview Download
16_Plancks_Constant_013-14893A-CS.cap 10.84 KB
16_AP2_Plancks_Constant_S.docx 387.33 KB
16_AP2_Plancks_Constant_S.pdf 645.05 KB
16_Plancks_Constant_013-14893A-SV.spk2 6.46 KB

Standards Correlations

IB Topics AP Topics
12.1 6.F.3.1; 6.F.4.1

Featured Equipment

Current Sensor

Wireless Current Sensor

The Wireless Current Sensor facilitates introductory and advanced explorations of the fundamental concepts of electricity and basic circuits.

Voltage Sensor

Wireless Voltage Sensor

Easily record voltage data while exploring fundamental circuit concepts, electrochemical batteries, and so much more.

AC/DC Electronics Laboratory

AC/DC Electronics Laboratory

Facilitates electricity experiments for AC and DC. Can be used as a stand-alone with a multimeter or with PASCO sensors and software.

Many lab activities can be conducted with our Wireless, PASPORT, or even ScienceWorkshop sensors and equipment. For assistance with substituting compatible instruments, contact PASCO Technical Support. We're here to help.

Copyright Disclaimer: Section 107 of the Copyright Act of 1976 makes allowance for “fair use” for purposes of teaching, scholarship, education and research. Reproduction under any other circumstances, without the written consent of PASCO, is prohibited.
Source: Lab #16

Advanced Physics Through Inquiry 2

Planck's Constant