2020 大学物理 III（一）(长安大学) 最新满分章节测试答案

文章目录[隐藏]

Chapter 2 Kinematics in one-Dimension Chapter 2 Test
【作业】Chapter 2 Kinematics in one-Dimension Exercise-Chapter2
【作业】Chapter 3 Kinematics in More Dimensions; Vectors (1) Exercise： Chapter3 -1
Chapter 3 Kinematics in More Dimensions; Vectors (2) Chapter 2~3 Test
【作业】Chapter 3 Kinematics in More Dimensions; Vectors (2) Exercise： Chapter3 -2
Chapter 4 & 5 Dynamics： Newton’s Laws and Application (2) Chapter 4&5 Test
【作业】Chapter 4 & 5 Dynamics： Newton’s Laws and Application (2) Exercise-Chapter4
【作业】Chapter 7 Work and Energy (2) Exercise Chapters 7 and 8
【作业】Chapter 9 Linear Momentum and Collisions Exercise Chapters 9
【作业】Chapter 13 Wave Motion (2) Exercise Chapters 13-1
【作业】Chapter 13 Wave Motion (3) Exercise-Chapter13-2
【作业】Chapter 14 Sound Exercise-Chapter14

本答案对应课程为:点我自动跳转查看
本课程起止时间为:2020-02-22到2020-06-30
本篇答案更新状态:已完结

Chapter 2 Kinematics in one-Dimension Chapter 2 Test

1、问题:A car speedometer measures its velocity.
选项：
A:正确
B:错误
答案: 【错误】

分析：【Speed】

2、问题:If one object has a greater speed than a second object, the first necessarily have a greater acceleration.
选项：
A:正确
B:错误
答案: 【错误】
分析：【The magnitude of acceleration is relate to the time interval.】

3、问题:An object can have zero velocity and nonzero acceleration at the same time.
选项：
A:正确
B:错误
答案: 【正确】
分析：【For the freely falling object at initial time.】

4、问题:An object can be increaseing in speed as its acceleration decreases.
选项：
A:正确
B:错误
答案: 【正确】

5、问题:When an object moves with constant velocity, its average velocity during any time interval differs from its instantaneous velocity at any instant.
选项：
A:正确
B:错误
答案: 【错误】

【作业】Chapter 2 Kinematics in one-Dimension Exercise-Chapter2

1、问题:
评分规则: 【 123
】

【作业】Chapter 3 Kinematics in More Dimensions; Vectors (1) Exercise： Chapter3 -1

1、问题:
评分规则: 【 123
】

Chapter 3 Kinematics in More Dimensions; Vectors (2) Chapter 2~3 Test

1、问题:Which of the following formulas is true for all types of motion?
选项：
A:
B:
C:
D:
答案: 【】

2、问题:Which of the following ideas is helpful in understanding projectile motion?
选项：
A:Acceleration is +g when the object is rising and -g when falling.
B:The horizontal motion is independent of the vertical motion.
C:The velocity of the object is zero at the top point of parabola.
D:In the absence of friction, the trajectory will depend on the object’s mass as well as its initial velocity and launch angle.
答案: 【The horizontal motion is independent of the vertical motion.】

3、问题:
选项：
A:
B:
C:
D:
答案: 【】

4、问题:If the motional equation of a particle is expressed as , which of the following statement is true?
选项：
A:It is a uniform circular motion.
B:The path is a parabola.
C:The radial acceleration is
D:The speed is v=2t.
答案: 【The speed is v=2t.】