声音的音高
Pitch of Sounds
发现声音的音高与产生声音的物体特征之间的规律
Find patterns between the pitch of a sound and features of the object that produced it
学习证据 / Evidence
- 描述规律：更短、更细、更紧的物体产生音调更高的声音
- 使用至少一种乐器或日常物品演示音高的变化
- 解释音高是指声音的高低，由物体振动的快慢决定
- Describe the pattern: shorter/thinner/tighter objects produce higher-pitched sounds
- Demonstrate pitch changes using at least one instrument or everyday object
- Explain pitch as how high or low a sound is, determined by how fast the object vibrates
评估问题 / Assessment
{{name}}能解释为什么短的吉他弦比长的吉他弦发出的声音更高，或者为什么小鼓比大鼓发出的声音更高吗？
Can {{name}} explain why a short guitar string makes a higher sound than a long one, or why a small drum sounds higher than a big one?