Year 8 Energy Flashcards
Potential Energy
the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.
Gravitational Energy
Gravitational energy is the potential energy held by an object because of its high position compared to a lower position.
Elastic Energy
Elastic energy is the potential mechanical energy stored in the configuration of a material or physical system as work is performed to distort its volume or shape.
Chemical Energy
Chemical Energy is energy stored in the bonds of chemical compounds (atoms and molecules).
Electrical Energy
Electrical energy can be used to move charged particles through a wire from a power plant to our homes and businesses.
Kinetic Energy
energy which a body possesses by virtue of being in motion
Heat Energy
Heat energy (or thermal energy or simply heat) is defined as a form of energy which transfers among particles in a substance (or system) by means of kinetic energy of those particles.
Light Energy
Light energy is defined as how nature moves energy at an extremely rapid rate, and it makes up about 99% of the body’s atoms and cells, and signal all body parts to carry out their respective tasks.
Sound energy
Sound energy is a form of energy associated with the vibration of matter
Law of conservation Energy
the law of conservation of energy states that the total energy of an isolated system remains constant—it is said to be conserved over time.
Efficiency
Efficient energy use, sometimes simply called energy efficiency, is the goal to reduce the amount of energy required to provide products and services.
Thermal energy transfer
All objects transfer thermal energy by infrared radiation. The hotter an object is, the more infrared radiation it gives off.
Conduction
the process by which heat or electricity is directly transmitted through the material of a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
Convection
the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Radiation
the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
Reflection
the throwing back by a body or surface of light, heat, or sound without absorbing it.
Transmitted
cause (something) to pass on from one person or place to another.
Absorbed
take in or soak up (energy or a liquid or other substance) by chemical or physical action.
Conductor
Something that makes the energy stronger
Insulator
a substance which does not readily allow the passage of heat or sound.
Luminous
giving off light; bright or shining.
Incandescent
Incandescence is the light from heat. A fireplace adds a warm incandescence to a house in the winter.
Bioluminescent
Bioluminescence is the production and emission of light by a living organism.
Non-luminous
Not capable of producing light, but can be capable of reflecting light from another source.
Vibrations
an instance of vibrating.
Compressions
the action of compressing or being compressed.
Rarefactio
reduction in the density of something, especially air or a gas.
Frequency/pitch
the rate per second of a vibration constituting a wave, either in a material, or in an electromagnetic field.
