Thiết kế và sử dụng bộ thí nghiệm khảo sát chuyển động rơi tự do trong dạy học nội dung “Chuyển động biến đổi” (Vật lí 10)

Tóm tắt

“Variable motion” is an important content in the Physics 10 program, in which free fall is a typical example of uniformly accelerated motion in practice. Through experiments, students can investigate the law of free fall which is a uniformly accelerated linear motion and measure the acceleration of free fall. The free-fall motion survey experiment set equipped at universities, colleges and high schools currently still has certain limitations, causing difficulties for teachers in the classroom teaching process. This study proposes a plan to design an experimental set to investigate free fall motion to overcome some limitations of existing experimental sets at high schools. The free fall motion survey experiment set is designed based on the application of an Arduino microcontroller, obstacle sensor and tilt angle sensor. Test results show that the free fall acceleration value measured through a self-created test set gives results consistent with theory with an error of less than 3%.