College Physics 知到智慧树答案2024WYC z48756

第一章 单元测试

1、单选题：
What is the atomic scale in nature. （ ）

A: m
B: m
C: m
D: m
答案: m

2、单选题：
What is the cosmic scale in nature.（ ）

A: m
B: m
C: m
D: m
答案: m

3、多选题：
Which of the following statements about physics are correct.（ ）

A:Physics exists everywhere and everyday
B:Physics is the natural science
C:Physics is one of the most fundamental scientific disciplines
D:Physics concerns the phenomena from cosmos down to atoms
答案: Physics exists everywhere and everyday;
Physics is the natural science;
Physics is one of the most fundamental scientific disciplines;
Physics concerns the phenomena from cosmos down to atoms

4、多选题：
Which of the following subjects are included in the classical physics.（ ）

A:Electromagnetics
B:Optics
C:Mechanics
D:Thermodynamics
答案: Electromagnetics;
Optics;
Mechanics;
Thermodynamics

5、判断题：
Relativity theory and quantum mechanics are the fundamentals of modern physics. （ ）

A:错
B:对
答案: 对

第二章 单元测试

1、单选题：
A bottle of water is 500 ml, in standard units, which is（ ）

A:0.5
B:0.005
C:0.05
D:0.0005
答案: 0.0005

2、单选题：
A vector with a magnitude 10 and angle to +y axis, which can be written down as（ ）。

A:
B:
C:
D:
答案:

3、多选题：
Which of the following physics quantities can be directly measured.（ ）

A:speed
B:time
C:length
D:weight
答案: time;
length;
weight

4、多选题：
Which of the following equations about vector operations are correct.（ ）

A:
B:
C:
D:
答案: ;
;
;

5、判断题：
If two vectors are perpendicular, their dot product is zero and their cross product has the maximum magnitude. （ ）

A:错
B:对
答案: 对

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