| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| constant speed of light | 0.58 | 0.8 | 446 | 14 | 23 |
| constant | 0.23 | 0.8 | 724 | 91 | 8 |
| speed | 1.99 | 0.9 | 2395 | 27 | 5 |
| of | 1.69 | 0.2 | 9212 | 81 | 2 |
| light | 1.24 | 0.8 | 2196 | 66 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| constant speed of light | 0.65 | 0.5 | 835 | 7 |
