Metal paper clips do not attract or repel each other. When an electromagnet is placed nearby, the paper clips can be observed to move toward it. Which statement describes this phenomenon?(1 point)

Question

Responses

Paper clips turn into permanent magnets after exposure to a magnetic field.

Magnetic domains within the paper clips align with the magnetic field.

Electrons flow freely into the magnetic field, causing the paper clips to move.

The electromagnet reacts to the strong force of attraction from paper clips.

An experiment modeled the interaction between magnetic force and the change of energy of an object influenced by the magnetic force. The experiment’s researchers observed that the metal wheels of a small car turned as they experienced the force exerted by a magnetic field, drawing the car closer to the magnet. What energy is being gained by the car?(1 point)
Responses

thermal energy

potential energy

kinetic energy

electrical energy

Domains are the regions in a material in which the magnetic fields of many of the atoms are aligned facing the same direction. What is the relationship between the electrical current and the alignment of atoms responding to the current?(1 point)
Responses

As current decreases, the alignment becomes continuous.

The alignment of atoms has nothing to do with the changing current.

As current increases, the alignment reverts to its random arrangement.

As current increases, the alignment becomes more organized.

An electromagnet is built using a 9-volt battery connected to a switch via conducting wire that is coiled around an iron nail. A pile of metal paper clips is moved close to the iron nail, yet no attraction is apparent between the electromagnet and the paper clips. What is the most likely conclusion to explain this result?(1 point)
Responses

There are not enough coils of wire around the iron nail.

The paper clips are made of a nonmagnetic metal.

The switch is turned off.

The switch is turned on.

Answer 1

1. The correct statement that describes the phenomenon of paper clips moving toward the electromagnet is:

   • Magnetic domains within the paper clips align with the magnetic field.

2. The energy being gained by the car as it approaches the magnet and experiences the magnetic force is:

   • kinetic energy.

3. The relationship between electrical current and the alignment of atoms responding to the current is:

   • As current increases, the alignment becomes more organized.

4. The most likely conclusion to explain the result of no attraction between the electromagnet and the paper clips is:

   • The switch is turned off.