This DOES show an energy transfer to an object. This does NOT show an energy transfer to an object.
Ms. Smith waits patiently while her students settle into their seats.
This DOES show an energy transfer to an object. – Ms. Smith waits patiently while her students settle into their seats.
This does NOT show an energy transfer to an object. – Ms. Smith waits patiently while her students settle into their seats.
Ms. Smith pushes her markers out of the way so she can put her papers on the table.
This DOES show an energy transfer to an object. – Ms. Smith pushes her markers out of the way so she can put her papers on the table.
This does NOT show an energy transfer to an object. – Ms. Smith pushes her markers out of the way so she can put her papers on the table.
Ms. Smith picks up a book, drops it, and allows it to hit the floor.
This DOES show an energy transfer to an object. – Ms. Smith picks up a book, drops it, and allows it to hit the floor.
This does NOT show an energy transfer to an object. – Ms. Smith picks up a book, drops it, and allows it to hit the floor.
Ms. Smith throws a piece of trash into the trash can.
This DOES show an energy transfer to an object. – Ms. Smith throws a piece of trash into the trash can.
This does NOT show an energy transfer to an object. – Ms. Smith throws a piece of trash into the trash can.
This does NOT show an energy transfer to an object. – Ms. Smith throws a piece of trash into the trash can.
To determine if an action shows an energy transfer to an object, you need to consider if there is a change in the object's energy state. Energy can be transferred in various forms such as mechanical, thermal, electrical, or chemical, among others.
In the given examples:
- Ms. Smith waits patiently while her students settle into their seats: This does NOT show an energy transfer to an object because there is no change in the energy state of any object.
- Ms. Smith pushes her markers out of the way so she can put her papers on the table: This DOES show an energy transfer to an object. By pushing the markers, Ms. Smith is applying a force and transferring mechanical energy to move the markers.
- Ms. Smith picks up a book, drops it, and allows it to hit the floor: This DOES show an energy transfer to an object. As Ms. Smith picks up the book and raises its position, she is transferring potential energy to the book. When she drops it, the potential energy is converted to kinetic energy.
- Ms. Smith throws a piece of trash into the trash can: This DOES show an energy transfer to an object. When Ms. Smith throws the trash, she is applying a force and transferring mechanical energy to move the trash.
In summary, actions that involve applying forces, changing positions, or transferring energy to an object show an energy transfer.