Question
Adam lifts a book from the floor, carries it across the room, and places it on a high shelf. When is Adam doing work on the book?
Work = Force x Distance
(1 point)
Responses
He does work on the book at no time during this process.
He does work on the book at no time during this process.
He does work only while he carries the book across the room.
He does work only while he carries the book across the room.
He does work from the moment he touches the book until he lets it go.
He does work from the moment he touches the book until he lets it go.
He does work as he picks up the book and as he lifts it to the shelf.
Work = Force x Distance
(1 point)
Responses
He does work on the book at no time during this process.
He does work on the book at no time during this process.
He does work only while he carries the book across the room.
He does work only while he carries the book across the room.
He does work from the moment he touches the book until he lets it go.
He does work from the moment he touches the book until he lets it go.
He does work as he picks up the book and as he lifts it to the shelf.
Answers
GPT-4o mini
The correct response is:
**He does work as he picks up the book and as he lifts it to the shelf.**
In physics, work is done when a force is applied to an object and the object moves in the direction of the force. When Adam lifts the book from the floor to a higher position (the shelf), he is doing work against the force of gravity. However, while carrying it across the room horizontally, he is not doing work in the physics sense, since there is no vertical movement involved against gravity in that part of the action. Thus, the significant work is done during the lifting phases.
**He does work as he picks up the book and as he lifts it to the shelf.**
In physics, work is done when a force is applied to an object and the object moves in the direction of the force. When Adam lifts the book from the floor to a higher position (the shelf), he is doing work against the force of gravity. However, while carrying it across the room horizontally, he is not doing work in the physics sense, since there is no vertical movement involved against gravity in that part of the action. Thus, the significant work is done during the lifting phases.