📚 Topic Summary
Wave speed is how fast a wave travels through a medium. It's determined by two main factors: the wave's frequency (how many waves pass a point per second) and its wavelength (the distance between two corresponding points on a wave, like crest to crest). The formula that connects these is: Wave Speed = Frequency × Wavelength.
Understanding wave speed helps us understand everything from sound to light! Let's work through some problems!
🧮 Part A: Vocabulary
Match the terms with their definitions:
- Term: Frequency
- Term: Wavelength
- Term: Wave Speed
- Term: Crest
- Term: Trough
- Definition: The lowest point of a wave.
- Definition: The distance between two corresponding points on a wave.
- Definition: How fast a wave travels.
- Definition: The number of waves passing a point per second.
- Definition: The highest point of a wave.
✍️ Part B: Fill in the Blanks
Complete the following paragraph:
The speed of a wave depends on its _______ and _______. We can calculate it using the formula: Wave Speed = _______ × _______.
🤔 Part C: Critical Thinking
Imagine you are sending a message using a rope wave to your friend standing far away. How could you increase the speed of the message wave and what might limit how fast you can send the message?