波及其传播方式

建立波的模型，用振幅和波长描述波的形态，并理解波可以使物体移动。

Develop a model of waves to describe patterns in terms of amplitude and wavelength, and understand that waves can cause objects to move

学习证据 / Evidence

• 用振幅（高度）和波长（波峰之间的距离）来描述波。
• 演示更大的振幅意味着更多的能量，即更大的波能使物体移动得更明显。
• 用弹簧、绳子或水模拟波的形态，并描述观察到的现象。

• Describe a wave using the terms amplitude (height) and wavelength (distance between peaks)
• Demonstrate that larger amplitude means more energy (bigger waves move objects more)
• Model wave patterns using a slinky, rope, or water and describe what they observe

评估问题 / Assessment

{{name}}能利用弹簧或绳子演示波的传播方式，并解释更大的波带有更多能量、能使物体移动得更明显吗？

Can {{name}} use a slinky or rope to show how waves work, and explain that bigger waves have more energy and can move things more?