All Flashcards
What is the difference between Kinetic and Potential Energy?
Kinetic Energy: Energy of motion. | Potential Energy: Stored energy due to position or condition.
What is the difference between Conservative and Non-conservative forces?
Conservative Forces: Energy is converted between KE and PE without loss. | Non-conservative Forces: Energy is dissipated as thermal energy (e.g., friction).
Compare a system with constant total energy to one where energy is transferred.
Constant Total Energy: No energy enters or leaves the system; all conversions are internal. | Energy Transfer: Energy enters or leaves the system, changing the total energy.
Compare positive work and negative work.
Positive Work: Increases the total energy of the system. | Negative Work: Decreases the total energy of the system.
Compare mechanical energy in a frictionless system vs. a system with friction.
Frictionless System: Mechanical energy is conserved. | System with Friction: Mechanical energy is converted to thermal energy.
What's the difference between kinetic and potential energy?
Kinetic: energy of motion. Potential: stored energy due to position or configuration.
Conservative vs. Nonconservative Forces?
Conservative: Energy is converted back and forth. Nonconservative: Energy is dissipated as heat or sound.
Positive work vs. Negative work?
Positive work: adds energy to the system. Negative work: removes energy from the system.
What are the key differences between conservative and nonconservative forces?
Conservative: Path-independent, potential energy can be defined, total mechanical energy conserved. Nonconservative: Path-dependent, potential energy cannot be defined, total mechanical energy not conserved.
Compare and contrast kinetic and potential energy.
Kinetic: Energy of motion, depends on mass and velocity. Potential: Stored energy, depends on position or configuration (e.g., height or spring compression).