Science Flashcards
The ability to do work or cause change
Energy
Unit of Energy
J- Joules
Energy due to objects motion or position; the total potential and kinetic energy
Mechanical Energy
The vibrations of the electric charge or magnetic field
Light Energy
Energy caused by the movement of flow of electrons
Electrical Energy
The energy stored in bonds between the atoms in a compound
Chemical Energy
Energy created by the motion of atoms and molecules that occur within a substance
Thermal Energy
Related to the potential energy stored in bonds between particles in the nucleus of an atom
Nuclear Energy
Energy in the vibration of particles of an object
Sound Energy
- Energy due to an objects motion, position, or shape of an object
- Usually used to describe a large object
- The sum of kinetic and potential energy
Mechanical Energy
- Energy that isn’t due to an objects motion, position, or shape of an object
- Usually used to describe an object at its atomic level
- Ex. Electrical, Nuclear, Thermal, and Sound
Non-Mechanical Energy
When an object moves a distance when a force is applied parallel to the motion
Work
More Force > More Work > More energy being transferred
Relationship between work, force, and energy
Motion in the same direction as the force
Positive Work
Motion in the opposite direction of the force
Negative Work
The rate at which work is done
Power
Energy due to position (height) or shape
Potential Energy
- Potential energy related to height
- Stored energy due to the gravitational attraction between two objects
Gravitational Potential Energy (GPE)
Energy associated with objects that can be compressed or stretched
Elastic Potential Energy (EPE)
mgh- massheightacceleration (due to gravity)
GPE= ?
- the elasticity of the material
- how far it’s stretched of compressed
Two factors of EPE
When something is at rest and is not being stretched or compressed
Static state
The energy an object has due to its motion
Kinetic energy
1/2mass*velocity2
Kinetic Energy Formula
