unit 2 test Flashcards
what is a energy transformation?
the change of energy from one form to another. occur everywhere always. this can be nuclear, mechanical, electrical, thermal, sound and many more.
ex. a toaster turning electricity into termal energy making toast!
what is the law of conservation of energy?
energy can not be created or destroyed, only wastedddd, and converted
what is work
baby the transfer or change or energy from one form to another
what is mechanical work
applying force on an object that displaces the object in the direction of the force
what is energy?
the ability to do work
what is love?
baby, dont hurt me.
what are some characteristics of energy?
transfered from one object to another, come in many different interchangeable forms,can be stored.
Watt is the unit for energy?
watt hahah. get it? wattt? what? hahahahah
what is efficiency
measures useful work donecompared to the energy or work put into the machine
% efficiency= energy output-energy input X 100%
what is thermal energy?
thermal energy id the sum of kinetic and potential energy
what heat?
the transfer or thermal energy
how do you do those hight and distance a ball will roll up a slope questions?
identify everything you need for conservation or energy (Vf=0) find hf.
use sin for height, sin angle= hf/d
d sin43=hf/sin43. d= hf/sin angle. there u go.
