原子物理 2024智慧树满分答案

魄偷涤瓢祭角多桨狄繁块泻氖

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第一章 单元测试

1、单选题：
The energy scale of atom is (   ). 

A: TeV
B: GeV
C: eV
D:MeV
答案:  eV

2、单选题：
The density scale of atom is (    ) 

A:10¹⁰ g/cm³
B:1 g/cm³ 
C:10¹⁵ g/cm³ 
D:10² g/cm³ 
答案: 1 g/cm³ 

3、单选题：
Who did propose that the matter was indivisible in ancient Greece? (    ) 

A:Plato
B:Aristotle
C:Democracy
D:Archimedes
答案: Democracy

4、单选题：
 Who did firstly show the Periodic table?  (    )  

A:Mendeleev 
B:Avogadro 
C:Proust
D:Faraday 
答案: Mendeleev 

5、单选题：
 How many elements are discovered up to 2019? (    ) 

A:118
B:117
C:115
D:112  
答案: 118

6、单选题：
What was found by Roentgen in 1895? (    )

A:Proton 
B:neutron
C:X ray 
D:Electron
答案: X ray 

7、单选题：
The law of black-body radiation was given in 1900 by (    )? 

A:Plank
B:Boltzmann
C:Rutherford
D:Bohr
答案: Plank

8、单选题：
Which model can exactly solve the Hydrogen system? (   )

A:Bohr model
B:Schrodinger equation
C:Rutherford model 
D:Dirac equation 
答案: Dirac equation 

9、单选题：
Which field is not related to atomic physics? (    ) 

A:Plasma physics 
B:Astrophysics
C:Literature
D:Environment
答案: Literature

10、单选题：
 Who did not join the Solvay conference held in 1927? (   )  

A:Einstein
B:Pauli 
C:Fermi  
D:Schrodinger
答案: Einstein

第二章 单元测试

1、单选题：
State the mass of Avogadro’s number of atoms for Copper (   ).  

A:127.10 g
B:63.55 kg
C:23.22 g
D:63.55 g 
答案: 63.55 g 

2、单选题：
The mass of a single iron atom is 9.3 × 10^–23 g. Determine the number if iron atoms in regular cube that measures exactly 10 cm on an edge. The density of iron is 7.86 g/cm³  (   ) 

A:3.5 × 10²⁵ 
B:8.5 × 10²⁵
C:7.5 × 10²⁴  
D:4.2 × 10²⁶
答案: 8.5 × 10²⁵

3、单选题：
The mass of a proton is (    ) 

A: 0.511 MeV
B:1.673× 10^-24 g 
C:3.344× 10^-27 kg
D:10.07 u
答案: 1.673× 10^-24 g 

4、单选题：
In Rutherford atomic model alpha particles were stroked on  (    )  

A:titanium
B:aluminum 
C:silver
D:gold 
答案: gold 

5、单选题：
For aluminum ( Z2 = 13) and gold ( Z2 = 79 )targets, what is the ratio of α particle scattering at any angle for equal numbers of scattering nuclei per unit area? (     ) 

A:134.5
B:0.03 
C:36.93
D:1.47 
答案: 36.93

6、单选题：
For an 8.0-MeV α particle scattering from a gold atom ( Z = 79 ) of radius 0.135 nm, the largest scattering angle, θ is ? (    ) 

A:

B:

C:

D:

答案:

7、单选题：
According to structure of atom electron should fall in (   )?  

A:nucleus
B:outer environment
C:shell 
D:space
答案: nucleus

8、单选题：
Which of the following is not a valid conclusion from Rutherford’s alpha particle scattering experiment? (    ) 

A:The atom is mainly empty space 
B:The nucleus must be positively charged 
C:The nucleus must be very small compared to the atom
D:The mass of the atom is mostly concentrated in the nucleus 
答案: The nucleus must be positively charged 

9、单选题：
A 5.0-MeV alpha particle approaches a gold nucleus with an impact parameter of 2.6×10^-13 m. Through what angle will it be scattered? (    )

A:10° 
B:Plasma physics  
C:Astrophysics
D: Environment
答案: 10° 

10、单选题：
What fraction of a beam of 7.7-MeV alpha particles incident upon a gold foil 3.0×10^-7 m thick is scattered by less than 1°? (   ) 

A:1.35 
B: 0.67 
C:0.05 
D:0.84
答案: 0.84

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