أرسل هذا في رسالة قصيرة: Pre‐conceptions of Newton’s Laws of Motion of Students in Introductory Physics

 __   _    _    _     _____    _    _     _  _   
| || | || | || | ||  / ____|| | || | ||  | \| || 
| '--' || | || | || / //---`' | || | ||  |  ' || 
| .--. || | \\_/ || \ \\___   | \\_/ ||  | .  || 
|_|| |_||  \____//   \_____||  \____//   |_|\_|| 
`-`  `-`    `---`     `----`    `---`    `-` -`