Flashcards in 6.2 Kinetic and Potential Energy Deck (12)
a property of objects that can be transferred from one object to another, and that cannot be created or destroyed. the capacity to do work
what are the two forms of energy?
kinetic and potential
the energy of motion (ex. light-movement of photons, thermal energy-movement of molecules)
stored energy that is released by a change in an object's structure or position (ex. concentration/electrical gradients)
a form of potential energy held in the chemical bonds between pairs of atoms in a molecule
covalent bonds form when:
the sharing of electrons between two atoms results in a more stable configuration than if the orbitals of the two atoms did not overlap
the more stable configuration will always be the one with lower...
when a covalent bond is broken, energy is....
required as input
when a covalent bond is formed, energy is....
strong chemical bonds do not contain much chemical energy because:
it is hard to break because the arrangement of orbitals in these molecules is much more stable than the two atoms would be on their own (think ball at bottom of flight of stairs) -does not require lots of energy to remain intact
weak covalent bonds have lots of chemical energy because:
the bonds are easily broken because the arrangement of orbitals in these molecules is only somewhat more stable than if the two atoms did not share any electrons -weak bonds require lots of energy to stay intact