如大家所知，IA写作是IB课程非常重要的一部分，然而这座大山常常会难住很多同学，其中要迈过的第一道坎就是选题的问题。同学们不要慌，打击可以仔细看看物理课程大纲的学习内容，根据大纲思考题目会顺利很多，其次，也可以从热物理、力学、波、电和磁等方面入手。今天小编为大家收集了10个IA选题，可供参考。

1, How does sugar concentration affect the refractive index of water?

糖浓度如何影响水的折射率？

2, How does the number of coils affect the efficiency of an electric motor?

线圈的数量如何影响电动机的效率？

3, How does the thickness of human hair affect the Young Modulus?

头发的厚度如何影响杨氏模量？

4, How does the cross-sectional area of a shuttlecock affect the range of projection?

羽毛球的横截面积如何影响投射范围？

5, Investigate how the radius of a football affect the impulse on the football when kicked?

调查足球的半径如何影响足球被踢时的冲动？

6, Exploring the relationship between angle of initial release of a pendulum and the subsequent calculation of ‘g’ from the pendulum.

探索摆的初始释放角度与随后计算摆的“g”之间的关系。

7, How does temperature affect the flight distance or arc of an elastic band when fired?

温度如何影响发射时弹性带的飞行距离或弧度？

8, Set up a hydraulics system and change multiple variables to test the impact.

设置液压系统并更改多个变量以测试冲击。

9, Investigate the impact of different levels of shade on the power output of a solar panel.

调查不同程度的阴影对太阳能电池板功率输出的影响。

10, Investigate the impact of various variables (temperature, concentration, colour) of a liquid on its refractive index.

调查液体的各种变量（温度、浓度、颜色）对其折射率的影响。

【微语】你踏上异国的土地, 追寻梦想的翅膀在风中展开, 每一步都是成长的印记。