All Flashcards
What are the differences between an open and a closed system?
Open System: Exchanges both matter and energy. | Closed System: Exchanges energy, but not matter.
What are the differences between positive and negative work?
Positive Work: Work done on the system, increasing its energy. | Negative Work: Work done by the system, decreasing its energy.
Differentiate between internal and external forces.
Internal Force: Force exerted by an object within the defined system. | External Force: Force exerted on the system by an object outside of it.
What is the difference between work and power?
Work: The transfer of energy. | Power: The rate at which work is done.
What is the effect of doing positive work on a system?
The total energy of the system increases.
What is the effect of doing negative work on a system?
The total energy of the system decreases.
What happens when external interactions occur with a system?
The total energy of the system can change.
What happens when a force moves an object parallel to the force?
Work is done, and energy is transferred.
Differentiate between an open and closed system.
Open System: Exchanges both matter and energy with surroundings. Closed System: Exchanges energy but not matter with surroundings.
What is the difference between Internal and External forces?
Internal Force: Force caused by a member within the system. External Force: Force caused by something outside the system.
Compare positive and negative work.
Positive Work: Work done on the system, increasing its energy. Negative Work: Work done by the system, decreasing its energy.
Compare Closed and Isolated Systems.
Closed System: Exchanges energy, not matter. Isolated System: Exchanges neither matter nor energy.
Compare Kinetic and Potential Energy.
Kinetic Energy: Energy of motion. Potential Energy: Energy of position or configuration.