Question

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) Electrons flow freely into the magnetic field, causing the paper clips to move. Paper clips turn into permanent magnets after exposure to a magnetic field. Magnetic domains within the paper clips align with the magnetic field. The electromagnet reacts to the strong force of attraction from paper clips. 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) As current increases, the alignment becomes more organized. 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 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) electrical energy kinetic energy potential energy thermal energy An electromagnet is built using a 9-volt battery with conducting wire connected to a switch and 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) The switch is turned on. The switch is turned off. There are not enough coils of wire around the iron nail. The paper clips are made of a nonmagnetic metal.

Answer 1

The statement that describes the phenomenon of metal paper clips moving toward an electromagnet when placed nearby is: Magnetic domains within the paper clips align with the magnetic field.

The relationship between the electrical current and the alignment of atoms responding to the current is: As current increases, the alignment becomes more organized.

The energy being gained by the car in the experiment described is: Kinetic energy.

The most likely conclusion to explain the lack of attraction between the electromagnet and the paper clips is: The paper clips are made of a nonmagnetic metal.