| A | B |
| This causes EMW's | vibrating electric charges |
| In an EMW, the electric and magnetic fields are oriented this way | perpendicular to each other |
Which has the highest frequency?,  | 3rd one |
| Waves carry this. | energy |
| The high point of a tranverse wave. | Crest |
| EMW's are different because they don't need this to travel. | medium |
| The speed of EMW's depends on this. | The type of medium.,  |
| EMW's carry this type of energy. | radiant |
Which wave has the longest wavelength?,  | The first one. |
| This Greek letter represents wavelength. | Lambda,  |
| The number of waves (crest to crest) per second. | frequency |
| The energy of EMW's depends on this. | frequency |
| The speed of all EMW's, not just light. | 300,000 km/sec or 186,000 miles/sec |
| The NAME of the unit for frequency. | Hertz (Hz) |
| The relationship between frequency and wavelength of EMW's. | Inverse (opposite) |
What is this called?,  | Electromagnetic Spectrum |
Which EMW wave has more energy?,  | The 3rd one. |
| EMW's can behave like this. | A wave or a particle. |
| Water and Sound waves must have this | A medium,  |
| A particle that EMW's sometimes behave like. | Photon,  |