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What are the differences between open and closed systems?
Open System: Allows exchange of both matter and energy with surroundings. | Closed System: Allows exchange of energy but not matter with surroundings.
What are the differences between Kinetic and Potential Energy?
Kinetic Energy: Energy of motion. | Potential Energy: Energy of position or configuration.
What are the differences between Gravitational Potential Energy and Elastic Potential Energy?
Gravitational Potential Energy: Energy due to height above a reference point. | Elastic Potential Energy: Energy stored in a spring or elastic material.
What are the differences between Work and Power?
Work: Transfer of energy by a force acting over a distance. | Power: Rate at which work is done or energy is transferred.
What happens when work is done on an object?
The object's energy changes (typically kinetic energy, according to the Work-Energy Principle).
What happens when a spring is compressed or stretched?
Elastic potential energy is stored in the spring.
What happens when an object is raised to a certain height?
The object gains gravitational potential energy.
What happens when friction acts on a moving object?
Mechanical energy is converted to thermal energy, reducing the object's kinetic energy and/or potential energy.
What happens when energy is transferred to a system?
The total energy of the system increases.
What happens when work is done on an object?
The object's energy changes.
What happens when a spring is compressed or stretched?
Elastic potential energy is stored in the spring.
What happens when an object is raised to a certain height?
The object's gravitational potential energy increases.
What happens when friction acts on a moving object?
Mechanical energy is converted to thermal energy.
What happens when non-conservative forces are present in a system?
The total mechanical energy of the system is not conserved.
What is the effect of increasing the velocity of an object on its kinetic energy?
Increasing the velocity of an object results in a quadratic increase in its kinetic energy.