Energy Assessment Flashcards
Elastic
Anything stretched or compressed has elastic energy
Is potential
Gravitational
Anything that is above the ground has potential energy
Increased height = more energy
Increased mass = more energy
Chemical
Anything with energy stored in it
Energy released with chemical reaction
Nuclear
Energy that’s is stored inside the nucleus of the atom
Kinetic (motion)
Anything that moves has kinetic energy
Higher velocity = greater energy
Thermal (heat)
Everything has some heat energy. The hotter something is the more thermal energy it has.
Light
Anything luminous
Sound
Anything noisy gives off sound energy the more noise, the more sound energy.
Electrical
Where ever there is a current (electrons) flowing, there is electrical energy (electricity)
Law of conservation
Energy cannot be destroyed or created but transferred and transformed.
Efficiency
Measure of ability to provide useful energy
Conduction
When whole object warms up
Insulators
Materials that aren’t good conductors
Convection
How liquids and gases heat up
Radiation
No particle movement involved
Heat transfer is quicker than convection or conduction
Example: suns heat
Temperature
Measures how cold or hot something is
Heat
Total amount of thermal energy in an object
Measured in Joules
Transmitted radiant heat
Clear objects allow heat through
Absorbed heat transfer
Dark coloured objects usually absorb light and radiant heat.
Temp increases quickly
Reflected radiant heat
Shiny objects/surfaces reflect light/radiant heat.
Bioluminescent
Creates light without heat
Transparent
Material that allows light to pass through
Translucent
Material that scatter the light when passing through
They transmit light
Images aren’t clearly seen
Opaque
Materials that are easier to see
Light cannot pass through it
They absorb and/or reflect light
Electromagnetic waves
Visible light Radio waves Microwaves Infrared Ultraviolet light X-rays Gamma-rays
