2021 Essential University Physics(苏州大学) 最新满分章节测试答案

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本课程起止时间为:2021-03-17到2021-07-18
本篇答案更新状态:已完结

【作业】Chap1 Translational Motion 1.4 Force and Motion

1、 问题:
评分规则: 【 100
】

【作业】Chap1 Translational Motion 1.3 Circular Motion and Projectile Motion

1、 问题:
评分规则: 【 50
】

2、 问题:
评分规则: 【 1
】

【作业】Chap1 Translational Motion 1.7 Conservation of Energy

1、 问题:
评分规则: 【 30
】

2、 问题:
评分规则: 【 40
】

3、 问题:
评分规则: 【 30
】

【作业】Chap1 Translational Motion 1.8 Systems of Particles

1、 问题:
评分规则: 【 50
】

2、 问题:
评分规则: 【 50
】

【作业】Chap1 Translational Motion 1.2 Motion in Two and Three Dimensions

1、 问题:
评分规则: 【 absolutely correct——————50
】

2、 问题:
评分规则: 【 absolutely correct——————50
】

【作业】Chap1 Translational Motion 1.5 Using Newton’s Laws

1、 问题:
评分规则: 【 50
】

2、 问题:
评分规则: 【 50
】

Chap1 Translational Motion test1.Translational Motion

1、 问题:
选项：
A:x-component>0，y-component>0
B:x-component>0，y-component<0
C:x-component<0，y-component>0
D:x-component<0，y-component<0
答案: 【x-component>0，y-component>0】

2、 问题:
选项：
A:piont P
B:piont Q
C:point R
D:point S
答案: 【piont P】

3、 问题:
选项：
A:its velocity is zero and its acceleration is zero. 
B:its velocity is zero and its acceleration is positive (upward).
C: its velocity is zero and its acceleration is negative (downward). 
D: its velocity is positive (upward) and its acceleration is zero.
答案: 【 its velocity is zero and its acceleration is negative (downward). 】

4、 问题:
选项：
A:
B:
C:
D:
答案: 【】

5、 问题:
选项：
A: The object is slowing down at a decreasing rate.
B:The object is slowing down at an increasing rate.
C:The object is speeding up at a decreasing rate.
D:The object is speeding up at an increasing rate.
答案: 【The object is speeding up at a decreasing rate.】

6、 问题:
选项：
A: at a point between the launch point and the high point of the trajectory. 
B:at the high point of the trajectory. 
C:at a point between the high point of the trajectory and where it hits the ground.
D:misleading question — the acceleration is the same (but nonzero) at all points along the trajectory 
答案: 【misleading question — the acceleration is the same (but nonzero) at all points along the trajectory 】

7、 问题:
选项：
A:speeding up and following a curved path. 
B:speeding up and moving in a straight line. 
C:slowing down and following a curved path.
D:slowing down and moving in a straight line. 
答案: 【speeding up and following a curved path. 】

8、 问题:
选项：
A:greater than the downward force of gravity. 
B:equal to the force of gravity.
C: less than the force of gravity.
D:any of the above, depending on the speed of the elevator.
答案: 【equal to the force of gravity.】

9、 问题:
选项：
A: the horizontal force that B exerts on A points to the left. 
B:the horizontal force that B exerts on A points to the right.
C:B exerts no horizontal force on A. 
D:not enough information given to decide
答案: 【B exerts no horizontal force on A. 】

10、 问题:
选项：
A:T = w2 
B: T > w2 
C:T < w2 
D: not enough information given to decide
答案: 【T < w2 】

11、 问题:
选项：
A:the sled will keep moving in a circle.
B:the sled will move on a curved path, but not a circle.
C:the sled will follow a curved path for a while, then move in a straight line. 
D:the sled will move in a straight line.
答案: 【the sled will move in a straight line.】

12、 问题:
选项：
A:the object’s kinetic energy 
B: the object’s velocity
C: both of the above 
D: none of the above
答案: 【the object’s kinetic energy 】

13、 问题:
选项：
A: the gravitational force does positive work on it and the gravitational potential energy increases. 
B: the gravitational force does positive work on it and the gravitational potential energy decreases. 
C: the gravitational force does negative work on it and the gravitational potential energy increases. 
D: the gravitational force does negative work on it and the gravitational potential energy decreases.
答案: 【 the gravitational force does positive work on it and the gravitational potential energy decreases. 】

14、 问题:
选项：
A:at x = a 
B:at x = b
C:at x = c 
D:at x = d
答案: 【at x = b】

15、 问题:
选项：
A:U = 0 at x = a
B:U is a maximum at x = a.
C:U is a minimum at x = a 
D:U is neither a minimum or a maximum at x = a, and its value at x = a need not be zero.
答案: 【U is a maximum at x = a.】

【作业】Chap2 Rotational Motion 2.2 Rotational Vectors