• 咨询电话 13023111482
  • 犀牛首页
  • IB课程
  • AP课程
  • G5笔面试
  • AMC竞赛
  • HMMT竞赛
  • 物理碗竞赛
犀牛教育
  • AP力学真题
  • AP物理1真题
  • AP物理2真题
  • AP计算机真题
  • AP生物真题
  • AP化学真题
  • AP电磁学真题

AP物理1真题

首页 > AP > AP物理 > AP物理1 > AP物理1真题

2018年AP物理1简答题真题+答案+PDF下载

2021-08-16

2018年AP物理1简答题真题+答案+PDF下载

1. (7 points, suggested time 13 minutes)

A spacecraft of mass m is in a clockwise circular orbit of radius R around Earth, as shown in the figure above.

The mass of Earth is upercase ME.

(a) In the figure below, draw and label the forces (not components) that act on the spacecraft. Each force must be represented by a distinct arrow starting on, and pointing away from, the spacecraft.

(b)

i. Derive an equation for the orbital period T of the spacecraft in terms of m, upercase M sub E upercase ME, R, and physical constants, as appropriate. If you need to draw anything other than what you have shown in part (a) to assist in your solution, use the space below. Do NOT add anything to the figure in part (a).

ii. A second spacecraft of mass 2m is placed in a circular orbit with the same radius R. Is the orbital period of the second spacecraft greater than, less than, or equal to the orbital period of the first spacecraft?

____Greater than ____Less than ____Equal to

Briefly explain your reasoning.

(c) The first spacecraft is moved into a new circular orbit that has a radius greater than R, as shown in the figure below.

Is the speed of the spacecraft in the new orbit greater than, less than, or equal to the original speed?

____ Greater than    ____Less than     ____Equal to

Briefly explain your reasoning.

 

2. (12 points, suggested time 25 minutes)

A group of students prepare a large batch of conductive dough (a soft substance that can conduct electricity) and then mold the dough into several cylinders with various cross-sectional areas A and lengths e. Each student applies a potential difference △V across the ends of a dough cylinder and determines the resistance R of the cylinder. The results of their experiments are shown in the table below.

(a) The students want to determine the resistivity of the dough cylinders.

i. Indicate below which quantities could be graphed to determine a value for the resistivity of the dough cylinders. You may use the remaining columns in the table above, as needed, to record any quantities (including units) that are not already in the table.

Vertical Axis: ________________________

Horizontal Axis: ________________________

ii. On the grid below, plot the appropriate quantities to determine the resistivity of the dough cylinders.Clearly scale and label all axes, including units as appropriate.

iii. Use the above graph to estimate a value for the resistivity of the dough cylinders.

(b) Another group of students perform the experiment described in part (a) but shape the dough into long rectangular shapes instead of cylinders. Will this change affect the value of the resistivity determined by the second group of students?

____Yes ____No

Briefly justify your reasoning.

(c) Describe an experimental procedure to determine whether or not the resistivity of the dough cylinders depends on the temperature of the dough. Give enough detail so that another student could replicate the experiment. As needed, include a diagram of the experimental setup. Assume equipment usually found in a school physics laboratory is available.

2018年AP物理1简答题真题余下省略!


你可能还关注

  1. 2021年AP物理1简答题真题+答案+PDF下载 2021-08-16   
    2021年AP物理1简答题真题+答案+PDF下载
    详情阅读
  2. 2019年AP物理1简答题真题+答案+PDF下载 2021-08-16   
    2019年AP物理1简答题真题+答案+PDF下载
    详情阅读
  3. 2017年AP物理1简答题真题+答案+PDF下载 2021-08-16   
    2017年AP物理1简答题真题+答案+PDF下载
    详情阅读
  4. 2015年AP物理1简答题真题+答案+PDF下载 2021-04-20   
    2015年AP物理1简答题真题+答案+PDF下载
    详情阅读
  5. 2016年AP物理1简答题真题+答案+PDF下载 2021-04-20   
    2016年AP物理1简答题真题+答案+PDF下载
    详情阅读

扫码免费下载真题

AP物理1真题

  • 2021年AP物理1简答题真题+答案+PDF下载
  • 2019年AP物理1简答题真题+答案+PDF下载
  • 2018年AP物理1简答题真题+答案+PDF下载
  • 2017年AP物理1简答题真题+答案+PDF下载
  • 2015年AP物理1简答题真题+答案+PDF下载
  • 2016年AP物理1简答题真题+答案+PDF下载
犀牛国际

犀牛国际(X-NEW),由业内多名教学专家共同组建,不乏来自加州理工大学、剑桥大学、清华大学、北京大学、复旦大学、新加坡国立大学等国际一流大学。 其中有博士、硕士的学历老师众多,学术功底扎实,有的已经执教十余年,国际领域经验丰富。

国际学科

  • IB课程辅导
  • AP课程培训
  • A-Level课程培训
  • IGCSE课程辅导

国际竞赛

  • AMC数学竞赛
  • AIME数学竞赛
  • HiMCM竞赛
  • PUMaC竞赛
  • HMMT竞赛
  • 滑铁卢数学竞赛
  • 物理碗竞赛
  • BPhO竞赛
  • BAAO竞赛
  • USNCO竞赛
  • UKCHO竞赛
  • CCC竞赛
  • USABO竞赛
  • BBO竞赛
  • BRAIN BEE

G5笔面试

  • STEP
  • PAT
  • ECAA
  • LNAT
  • MAT
  • TSA
  • NSAA
  • BMAT
  • ENGAA
  • CTMUA
犀牛国际 版权所有 沪ICP备2021004381号-1