Hinweis der Redaktion
- We have an alarm clock
- It begins ringing – this is the wavefronts after 1 second
- After 2sec
- 3
- 4
- 5…what do you notice about the wavefronts and how they moved?
- Let’s look at our alarm clock again
- …and let’s add wheels
- Here’s what it looks like after 1 second, but now watch what happens when the alarm clock moves…
- After 2 seconds
- 3 seconds
- 4 seconds
- 5 seconds. How is this different than what we observed when the alarm clock didn’t move?
- Comparison to previous if needed