עמוד:21

to Energy Another Transfer from One Body Energy may transfer from one object to another without any change in its form . In the following experiments and simulations , you will examine various phenomena associated with energy transfers . Activity Experimentation Collision between Marbles Objective : To observe and analyze the transfer of energy that occurs in a collision between marbles . Equipment : Two marbles . Procedure : Push a marble across the table surface towards the other marble , located at some distance from it . Results : Describe what happened to each of the marbles . Explanation : What you have seen here is a transfer of energy from one object to another . Energy has passed from one marble to the other . Kinetic energy of marble A Transfers to the kinetic energy of marble B Questions 1 . A hot pot is placed on the table and the table heats up . Is this change a transformation of energy or a transfer of energy ? 2 . A child kicks a ball on a playing field ; the ball travels across the field . Is this change a transformation of energy or a transfer of energy ? 3 . Describe in words a process or phenomenon that involves a transfer of energy without a transformation of energy . Then write out the flow chart of the process .

מטח : המרכז לטכנולוגיה חינוכית


לצפייה מיטבית ורציפה בכותר