energy & transfer Flashcards
what is the unit of energy?
joules ( J )
what are the types of energy?
thermal
kinetic
gravitational potential
elastic potential
chemical
magnetic
electrostatic
nuclear
light
sound
what is radiation?
Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material
what is convection?
Convection is the transfer of heat by the movement of heated parts of liquids and gases.
what is conduction?
Conduction is the process by which heat is transferred from the hotter end to the colder end of an object. The ability of the object to conduct heat is known as its thermal conductivity
what is conservation of energy?
energy cant be created or destroyed, it can only be transferred from one thing to another.
what is temperature measured in?
Degrees Celsius
how do we measure temperature?
by using a thermometer
what is renewable energy?
energy that is unlimited and can last forever like solar, wind, geothermal
what is non-renewable energy/
energy that is limited and wont last forever like coal,oil,gas
how do you calculate power?
power(W)=energy transferred(J) ÷ time(S)
how do you calculate the work?
work(J)=force(N) x distance(M)
what is a lever?
a simple machine
