Relationship between velocity, frequency, and wavelength V = fV = f V = velocity of soundV = velocity of sound = wavelength of sound = wavelength of sound f = frequency of soundf = frequency of sound Sound travels faster in liquids than in airSound travels faster in liquids than in air ...
In this study, it was aimed to develop an achievement test taking into account the subject acquisitions of the sound and properties unit in the sixth-grade science course. In the test development phase, firstly, literature review for the study was conducted. Then, 30 multiple choice questions...
2.1. Materials and method Materials and sample preparation Methanol, hexane and chloroform were purchased from Thermofisher (Auckland, New Zealand) and were of HPLC grade. 2, 2- Diphenyl-1-picrylhydrazyl (DPPH), fucoxanthin and 5 102 103 104 105 106 107 108 109 110 111 112 113 114 115 ...
The bulk density of sound and degraded wood (ρ) was calculated as the ratio of the sample weight to its volume after air-drying and conditioning under the temperature of about 20 ◦C and relative humidity of about 50%. 2.2.2. Infrared Spectroscopy The chemical composition of wood was ...