introduction to energy
what is the universe made out of
it is made out of matter and energy
what is energy
is the capacity to move,do work,change matter or produce heat
how much is one joule
1 J=0.2390 cal
what is matter composed of
it is composed of particles
what is potential energy
the energy stored wihin a system
what other way can joule be defined in terms of mechanical energy
1 J = 1kg times m^2/s^2
what cases to changes occur
the change are driven by transfers and transformations of energy
what is matter made of
how much is one calorie of heat
1 cal =4.184 J
what involves in changes within a system
movements of matter driven by a flow of energy
what is chemical potential energy
the enrgy stored in chemical bonds
1 Calories=1,000 calories
when anything is happening what is energy doing
energy is flowing
what is kinetic energy
the energy of an object motion
what does your body do when exercise
your body uses chemical reactions to break down sugars and fats