7A18 Tiết 19 - Bài 12.1: Ánh sáng truyền đi như thế nào? by Nguyễn Thị Thu Hằng https://padlet.com/vhangntt111/mgo10w3snixwhjlu Lấy ví dụ cho mỗi trường hợp được liệt kê. en-us 2022-01-12 06:49:58 UTC 2022-01-12 07:10:58 UTC hello@padlet.com VD Nguồn sáng vhangntt111 https://padlet.com/vhangntt111/mgo10w3snixwhjlu/wish/1987615809 2022-01-12 06:49:58 UTC https://padlet.com/vhangntt111/mgo10w3snixwhjlu/wish/1987615809 VD Vật Phát quang vhangntt111 https://padlet.com/vhangntt111/mgo10w3snixwhjlu/wish/1987615811 2022-01-12 06:49:58 UTC https://padlet.com/vhangntt111/mgo10w3snixwhjlu/wish/1987615811 VD Vật không phát quang vhangntt111 https://padlet.com/vhangntt111/mgo10w3snixwhjlu/wish/1987615812 2022-01-12 06:49:58 UTC https://padlet.com/vhangntt111/mgo10w3snixwhjlu/wish/1987615812 Mặt Trăng là vật phát quang hay không phát quang? Vì sao? vhangntt111 https://padlet.com/vhangntt111/mgo10w3snixwhjlu/wish/1987615813 2022-01-12 06:49:58 UTC https://padlet.com/vhangntt111/mgo10w3snixwhjlu/wish/1987615813