One of the phenomena of gourami fish is the jumping motion. In analyzing the fish motion, errors are often experienced in observations, tend to be subjective or take a long time. An alternative software to analyze the fish motion is the Tracker software. The study aims to analyze the video of the Gourami fish motion phenomenon using Tracker software in the mechanical energy conservation practicum. This type of research is experimental research. Based on the results, the greater the mass of the fish indicates the greater the kinetic energy and potential energy in the motion of the fish. Kinetic energy depends on the mass and speed of the Gourami fish jumping. While the potential energy depends on the height of the Gourami fish when jumping. It is also affected by the fish's mass and the acceleration of gravity. The video analysis of the motion of the jumping gourami using Tracker can be used in science learning, especially in physics practicum about the law of conservation of mechanical energy

This study aims to explain the phenomenon of motion in hamsters moving in a rolling wheel. Motion is one of the materials taught at the 7th-grade junior high school. The study can be used in learning with the practicum method, namely animal motion. Hamster (Cricetinae) motion is analyzed using a video tracker analysis application with a javascript program. This study used a direct experiment using a hamster using four reference points, namely the forelegs, head, middle body, and hind legs. The results of data analysis from the tracker application were processed using the Microsoft Excel program to obtain a graph of changes in the position and velocity of the hamster. Hamster motion on the rolling wheel is a type of translational motion, namely uniform linear motion.  Changes in the hamster's position indicate motion on a horizontal line. The velocity obtained in the tracker application is more accurate than manual calculations.

In the science learning process especially sound waves concept, experiments are needed that can help someone in gaining a meaningful learning and using technology. In this study, the aim is to analyze and compare the bird sound frequency assisted by Audacity software. The subjects used are three different bird sound (Murai Batu’s sound as the main subject while the Love Bird and Kenari’s sound as the compared subject). The implementation of this study uses several tools such as a microphone, Audacity software on a laptop and bird sounds. This experiment was carried out by bringing the microphone closer to the bird with 15 cm, so that the sound was captured by the microphone, then transferred to the laptop and read by the Audacity software. Furthermore, the data recorded in Audacity were analyzed. From the results of the study, it can be concluded that combination of bird sounds and audacity tools can be used in practicum, can read and capture bird sound waves effectively in analyzing and comparing the bird sound frequency and spectrum in the software. Thus, it tends to be utilized as one of the learning media in practicum on sound wave material at secondary school.