Which of the following factors would decrease the magnetic field strength of an electromagnet?(1 point) Responses increasing the current or using a higher-voltage power source increasing the current or using a higher-voltage power source using an iron core or nail using an iron core or nail increasing the number of turns in the coil of wire increasing the number of turns in the coil of wire increasing the distances between the turns of the coil
7 answers
increasing the distances between the turns of the coil
What happens when thermal energy is applied to water?(1 point) Responses Its molecules lose kinetic energy. Its molecules lose kinetic energy. Its molecules gain potential energy. Its molecules gain potential energy. The water creates steam as soon as thermal energy is applied. The water creates steam as soon as thermal energy is applied. Its molecules gain kinetic energy.
Its molecules gain kinetic energy.
What is the best description of heat?(1 point) Responses the transfer of potential energy from one object or substance to another the transfer of potential energy from one object or substance to another thermal energy thermal energy the measure of the average kinetic energy of the particles in an object or substance the measure of the average kinetic energy of the particles in an object or substance the transfer of thermal energy from a warmer object or substance to a cooler object or substance
the measure of the average kinetic energy of the particles in an object or substance
What is the relationship between heat and thermal conductors?(1 point) Responses Thermal conductors impede heat, the transfer of thermal energy. Thermal conductors impede heat, the transfer of thermal energy. Thermal conductors have no effect on heat. Thermal conductors have no effect on heat. Thermal conductors allow all of the thermal energy in one object or substance to be easily transferred to another object or substance. Thermal conductors allow all of the thermal energy in one object or substance to be easily transferred to another object or substance. Thermal conductors facilitate heat, the transfer of thermal energy.
Thermal conductors facilitate heat, the transfer of thermal energy.