剑桥面试官公开面试真题啦！！！

一位曾连续9年担任剑桥大学自然科学领域面试官的Dr. Austen Lamacraft，在社交平台上分享过他曾经在面试时给学生提出的问题，希望对正在准备面试的你有所帮助。

Dr. Austen Lamacraft剑桥大学自然科学专业本科剑桥大学数学专业硕士剑桥大学理论物理专业博士连续9年担任剑桥自然科学领域面试官Dr. Austen Lamacraft表示，他出的大部分问题都是关于一些物理和数学问题的结合，当然还有一些其他风格的问题，一起来看：

2012年

You're been running on a treadmill for a time T. Your current speed is v and the treadmill says your average speed is u. Find an expression for the rate at which your average speed is changing.

2013年

How does the tension in a rope vary as it winds around a cylinder with coefficient of static friction μ?

2014年

A dipole is a pair of opposite charges. Two parallel dipoles are separated by a distance much greater than their size. When the separation is perpendicular to the dipoles' axis, do the dipoles attract or repel? What about when their separation is parallel to their axis?

2015年

Sketch this function. Find the gradient and sketch it. Find where the gradient has a minimum.

2016年

Drops flying from a spinning wheel.（附解题思路）

2017年

What are complex numbers for? Represent a point in 2D using a complex number's magnitude and phase, and differentiate with respect to time to find velocity and acceleration.

2018年

Which is bigger? e^? or ?^e?

2019年

Block stacking. （The block-stacking problem is a puzzle concerning the stacking of blocks at the edge of a table）这道题在Dr. Austen Lamacraft自己参加剑桥本科面试的时候也被问到过哦！

2020年

Find the electric field at height h above a plane with σ charge per unit area. Introduces ideas of adding fields of different charges, taking components, integral as the limit of a sum.