Answer :
In music, different tempos are associated with different speeds. Here are the musical terms that correspond to the actions described in the list:
1. A dog running - Presto (very fast)
2. A kangaroo hopping - Allegro (fast and lively)
3. A turtle moving - Largo (very slow)
4. A firetruck going to a fire scene - Accelerando (gradually getting faster)
5. A running horse - Presto (very fast)
6. An old man walking - Andante (at a walking pace, moderately slow)
7. A bird flying - Allegro (fast and lively)
8. An airplane running on the runway - Ritardando (gradually getting slower)
These terms help musicians express the speed at which a piece of music should be played. They provide a clear indication of the tempo and mood that the composer intended for the music.