🗣️ Trần Văn Phú hỏi: Cho mình hỏi một câu Force Concept Inventory (FCI) - English bài tập về nhà
(A) reaches a maximum speed quite soon after release and then falls at a constant speed thereafter.
(B) speeds up as it falls because the gravitational attraction gets considerably stronger as the stone gets closer to the Earth.
(C) speeds up because of an almost constant force of gravity acting upon it.
(D) falls because of the natural tendency of all objects to rest on the surface of Earth.
(E) falls because of the combined effects of force of gravity pushing it downward and the force of the air pushing it downward.
👩 Đánh giá của giáo viên: Câu này trung bình, mức độ hiểu.
🔑 Chủ đề: trac nghiem.
🕵 Bạn Phạm Thị Đức trả lời:
Chọn câu (C): speeds up because of an almost constant force of gravity acting upon it.
👤 Nguyễn Văn Dũng viết:
Chọn C, speeds up because of an almost constant force of gravity acting upon it.
➥ 🗣️ Trần Văn Phú trả lời: Cảm ơn bạn, câu này hình như có trong file doc này Đề của VLTT-03 (Khó và Hay)
👤 Trần Văn Lộc viết:
Chọn D, falls because of the natural tendency of all objects to rest on the surface of Earth.
👤 Nguyễn Anh Phú viết:
Chọn E, falls because of the combined effects of force of gravity pushing it downward and the force of the air pushing it downward.
👤 Trần Văn Đức viết:
Chọn B, speeds up as it falls because the gravitational attraction gets considerably stronger as the stone gets closer to the Earth.
👤 Nguyễn Văn Thành viết:
Chọn A, reaches a maximum speed quite soon after release and then falls at a constant speed thereafter.
👤 Phạm Phương Danh viết:
Chọn C: speeds up because of an almost constant force of gravity acting upon it.
Gửi bạn các file hữu ích đi kèm câu hỏi: