energy
what is energy?
energy is the ability to do work in other words energy is transferred by a force moving an object throughh a distance
what is energy measured in?
j (joules)
whats the law of coe?
in a closed system energy must remain constant
what are the three kinds of energy?
GPE, KE, and EPE
what is kinetic energy?
whats mechanical enegry?
energy that is possessed by an object due to its motion or due to its position
when a skier is going down a mountain where does he have the most ke?
at the bottom of the mountain
when a skier is gong down the mountain where does he have both ke and gpe?
in the middle of the mountain
what is potential energy?
energy that is stored as a result of position or shape
what makes up thermal energy?
the total potential energy and kinetic energy of all the microscopic particles in a object make up thermal energy
when a skier is going down a mountain where does he have the most gpe?
the top of the mountain
what is a fact about momentum?
anything that is a correct answer
how do you calculate kinetic energy?
(KE)=1/2mv2
how do you calculate gravitational potential energy?
(PE)=mgh
what is newtons second law?
f=ma
what are the forms of energy?
mechanical energy, thermal energy, chemical energy, electrical energy, electromagnetic energy, and nuclear energy
what is nuclear energy?
nuclear energy is energy in the nucleus (core) of an atom.