All Flashcards
Describe the process of heat transfer by conduction.
Heat transfer through a material by molecular collisions.
Describe the process of heat transfer by convection.
Heat transfer by fluid movement (gas or liquid).
Describe the process of heat transfer by radiation.
Heat transfer through electromagnetic waves.
What are the differences between elastic and inelastic collisions?
Elastic: Kinetic energy is conserved. | Inelastic: Kinetic energy is not conserved; some energy is converted to other forms (heat, sound).
What are the differences between heat and temperature?
Heat: The transfer of thermal energy. | Temperature: A measure of the average kinetic energy of the particles in a substance.
What is the effect of heat absorption on internal energy?
Increases internal energy.
What is the effect of heat loss on internal energy?
Decreases internal energy.
What is the effect of work done on a system on its internal energy?
Increases internal energy.
What is the effect of work done by a system on its internal energy?
Decreases internal energy.
What happens to entropy in an isolated system over time, according to the Second Law of Thermodynamics?
Entropy tends to increase.