Which statement best describes metallic bonding?
a. a metal atom loses electrons and a nonmetal atom gains them.
b. two nonmetal atom share electrons between them.
c. many atoms give up electrons that can move among the atoms.
d. a nonmetal atom transfers electrons to a metal atom.

Which expression allows you to determine the mechanical advantage of an inclined plane? a. height of plane / input force b. length of plane / input force c. length of plane / height of plane d. height of plane / length of plane

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic