2018CAP Prize Exam加拿大高中物理大奖赛真题免费下载

历年CAP High School Prize Exam加拿大高中物理大奖赛

真题与答案下载

2018 CAP Prize Exam真题免费下载

共计3小时考试时间

此套试卷由25道选择题以及3道大题组成

每道大题含有不同数量的小题

部分真题预览：

1) A ball is attached to a cylinder by a string and is given an initial speed V1 at time t1. The ball moves along a frictionless surface and the cylinder is xed and cannot rotate. What is the speed of the ball at a later time t2?
a) V2 = L1L2V1
b) V2 = L1+RL2+RV1
c) V2 = L21+R2L22+R2 V1
d) V2 =pL21+R2pL22+R2 V1
e) V2 = V1

2) In the previous question, at t = t1, at what rate does the string wind around the cylinder (i.e. at what speed does L1 get shorted)?
a) L1R V1
b) L1+RR V1
c) RL1V1
d) R2L21V1
e) L21R2 V1

3) Three planets, each with same mass, orbit in dierent orbits around the same star. Which statement is true about the total energy of the three orbits? Assume that mplanets  Mstar.2
a) E1 < E2 < E3
b) E2 < E1 < E3
c) E3 < E2 < E1
d) E3 < E1 < E2

4) Charged particles with mass m and charge Q are in-jected with speed v into a region with a constant magneticeld. The particles are injected in a direction perpendic-ular to the magnetic eld lines and are found to move in circular orbits with period T. If the experiment is repeated for particles with mass 2m, charge Q=4, while the magnetic eld strength is tripled, what is the orbital period of the particles in the new experiment?
a) 8T/3
b) 3T/2
c) 4T/3
d) 2T
e) T/3

5) In the cube shown below, each edge is a wire with resistance R. What is the equivalent resistance between points A and B?
a) R
b) 13R
c) 23R
d) 12R
e) 56R

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