| A | B |
| vibration | rapid back and forth motion of air or other matter |
| frequency | the number of waves passing a point in one second |
| wavelength | the distance from one point on a wave to the same point on the next wave |
| sound energy | the energy of vibrations carried by air, water or other matter |
| radiant energy | energy that travels as waves and can move through empty space |
| chemical energy | energy stored in the connections among atoms |
| thermal energy | the energy of the movement of atoms and molecules |
| nuclear energy | the energy produced when an atom splits apart or two atoms join to form one atom. |
| electrical energy | energy carried by electricity |
| mechanical energy | energy an object has due to its motion, position, or condition. |
| potential energy | stored energy or energy an object has because of its position |
| kinetic | the energy of motion |
| draw a conclusion | reach a decision or opinion based on evidence and reasoning |
| ultraviolet rays | cause sunburn, wrinkling, skin cancer and eye damage |
| infared | all objects give this off; the warmer the more it gives off |
| The nmber of forms of energy | seven |