physics 1
what is the unit of energy?
joules
name a material that does not easily allow the transfer of thermal energy
insulator
what is the energy an object has because of its movement?
kinetic
what is the ratio of the useful energy output to the total energy input?
efficiency
name every energy store
magnetic, kinetic, heat, light, gravitational potential, chemical, sound, electric, elastic, nuclear
what is energy?
the ability of doing work
how do you work out work done?
work done= force x distance