Which statement best describes heat?(1 point)
Responses
Heat flows from cold to hot and is the transfer of thermal energy.
Heat flows from cold to hot and is the transfer of thermal energy.
Heat flows from hot to cold and is the transfer of thermal energy.
Heat flows from hot to cold and is the transfer of thermal energy.
Heat flows from hot to cold and is a form of thermal energy.
Heat flows from hot to cold and is a form of thermal energy.
Heat flows from cold to hot and is a form of thermal energy.
Heat flows from hot to cold and is the transfer of thermal energy.
The total kinetic energy of all particles in a substance.
What is thermal energy?(1 point)
Responses
a material that is a conductor of heat
a material that is a conductor of heat
the distance between particles and their freedom to move around
the distance between particles and their freedom to move around
the total kinetic energy of all particles in a substance
the total kinetic energy of all particles in a substance
the measurement of energy in an object due to position, conduction, or chemical composition
The correct answer is: "Heat flows from hot to cold and is the transfer of thermal energy."
To understand why this is the correct statement, let's break it down:
1. Heat flows from hot to cold:
Heat naturally moves from an area of higher temperature (hot) to an area of lower temperature (cold). This is called the "heat transfer" and is a fundamental principle in thermodynamics.
2. Transfer of thermal energy:
Heat is the transfer of thermal energy. Thermal energy is the energy that comes from the movement of particles within a substance. When heat is transferred, thermal energy is also transferred from one object or substance to another.
The other statements provided have incorrect descriptions:
- In the first statement, it mentions that heat flows from cold to hot, which is incorrect. Heat always flows from hot to cold.
- The third statement mentions that heat is a form of thermal energy, which is true, but it fails to mention the direction of heat flow, which should be from hot to cold.
- The fourth statement mentions that heat flows from cold to hot, which is incorrect.
So, the best statement that describes heat is the one that says, "Heat flows from hot to cold and is the transfer of thermal energy."