Energy and Work
The ability to cause change
What is energy?
Stored energy due to the interactions between objects or particles
What is kinetic energy?
Energy due to motion
What is kinetic energy?
A disturbance that transfers energy from one place to another without transferring matter
What is a wave?
A collection of objects that interact in some way.
What is a system?
The transfer of energy to an object by a force that makes an object move in the direction of the force
What is work?
Stored energy due to the interactions of objects in a gravitational field
What is gravitational potential energy?
The kinetic energy of an electric current
What is electrical energy?
A wave that can travel only through matter
What is a mechanical wave?
A system that exchange matter or energy with its surroundings
What is an open system?
The sum of an object’s kinetic energy and its potential energy
What is total energy?
Energy stored in objects that are compressed or stretched
What is elastic energy?
The vibration of air particles passing from particle to particle as a wave
What is sound?
A material in which a wave travels
What is a medium?
Occurs when energy is changed from one form to another
What is energy transformation?
The unit for energy
What is Joules?
The energy released when atoms form connections
What is chemical potential energy?
The total energy of a substance
What is thermal energy?
A wave in which the disturbance is perpendicular to the direction the wave travels
What is a transverse wave?
The object that gains energy from the energy transfer
What is the receiver object?
The law that states that energy is always transferring or transforming, but energy is not created or destroyed
What is the law of conservation of energy?
The potential energy of wood
What is chemical potential energy?
The energy carried by electromagnetic waves
Radiant energy
A wave in which the disturbance is parallel to the direction the wave travels
What is a longitudinal wave?
Energy “lost” due to friction
What is thermal energy?