Define/Explain
ability to do work
energy (operational definition)
sound waves
acoustic
battery running your computer
chemical to electrical
thrown baseball
mechanical kinetic
energy transformation in urban heat island effect (city hotter)
radiant to thermal
force acting on object to move it through a distance
work
average sum of kinetic energies of all particles in object
thermal
leaves burning
chemical to light/heat
diesel truck burning diesel
chemical
gravitational potential energy measured by distance above...
zero reference position (usually ground)
two atoms merge to release energy
fusion
interaction of electrical and magnetic energies
radiant energy
fan turned on and working
electrical to mechanical
hot soup
thermal
collision that conserves both kinetic energy and momentum
elastic (impossible)
one atom splits to release energy
fission
largest potential source of energy (but unusable)
mass
solar panels
light to electrical
pinata hanging from string
potential energy
3 ways electricity and magnetism are alike/different
electrical: charges, can have single charge, attracts opposite/repels like
magnetism: poles, must have both types of poles, attracts opposite/repels like
Energy conservation in less than 100% efficient transfer--how/why?
total is still the same, even if in unusable forms
field force working on electrons
water vapor forming in water bottle in window
light (radiant from sun) to thermal (heating water)
compass
magnetic (points to north pole!)
radiant energy sources
natural (sun, stars, black holes, etc.)
man-made (x-rays, microwaves, radio waves, etc.)