力的词汇
Forces Vocabulary
能用准确的词汇说出并描述各种力——力、推力、拉力、扭转、拉伸、挤压、接触力、非接触力、重力、重量、摩擦力、空气阻力、浮力——并能区分需要物体接触才能产生的力和无须接触、隔着距离作用的力。
Name and describe forces using precise vocabulary — force, push, pull, twist, stretch, squash, contact force, non-contact force, gravity, weight, friction, air resistance, upthrust — and distinguish between forces that require physical contact and forces that act at a distance
学习证据 / Evidence
- 能在至少五个给定场景中正确说出起作用的力（例如“摩擦力使雪橇减速”“重力拉着苹果下落”）。
- 能用正确的术语区分接触力（摩擦力、浮力）和非接触力（重力、磁力）。
- 能在描述中把“重量”正确用作一种力——并与“质量”区分开。
- Correctly name the force acting in at least five given scenarios (e.g. 'friction slows the sledge', 'gravity pulls the apple')
- Distinguish between contact forces (friction, upthrust) and non-contact forces (gravity, magnetism) using the correct terms
- Use 'weight' correctly as a force — distinct from 'mass' — in descriptions
评估问题 / Assessment
如果{{name}}从滑梯上滑下来，并在接近底部时慢了下来，{{name}}能说出这个力的名称并正确写出来吗？
If {{name}} slides down a slide and slows near the bottom, can they name the force responsible and spell it correctly?