Which of the following could be included on a list of examples showing an energy transfer to an object?

Question

(2 points)
This DOES show an energy transfer to an object. This does NOT show an energy transfer to an object.
Sandra sees a new kind of breakfast pastry sitting on a high shelf.

Sandra's dad pushes the grocery cart to make it start moving.

Sandra slides a gallon of milk out of the way to get a colder gallon from the back of the shelf.

Sandra's dad stands still while he thinks about what is on the grocery list.

Answer 1

To determine whether each scenario shows an energy transfer to an object, we'll analyze them one by one:

1. Sandra sees a new kind of breakfast pastry sitting on a high shelf.

   • This does NOT show an energy transfer to an object. (Sandra is only observing and not transferring energy to the pastry.)

2. Sandra's dad pushes the grocery cart to make it start moving.

   • This DOES show an energy transfer to an object. (When he pushes, he is transferring energy to the grocery cart to set it in motion.)

3. Sandra slides a gallon of milk out of the way to get a colder gallon from the back of the shelf.

   • This DOES show an energy transfer to an object. (When she slides the gallon of milk, she is applying force and transferring energy to move it.)

4. Sandra's dad stands still while he thinks about what is on the grocery list.

   • This does NOT show an energy transfer to an object. (Standing still does not involve transferring energy to any object.)

In summary:

• Energy transfer examples:

  • Sandra's dad pushes the grocery cart.
  • Sandra slides a gallon of milk.

• Non-energy transfer examples:

  • Sandra sees the breakfast pastry.
  • Sandra's dad stands still.