101 Basic Physics Concepts Quiz!

40 Questions | By Yuzaini | Updated: Mar 20, 2022 | Attempts: 517

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1.

What is a beta particle made of?
- A.
  
  One proton
- B.
  
  One electron
- C.
  
  Helium particle
- D.
  
  One proton and one neutron
2.

Photons interact with matter by three primary means:
- A.
  
  Photoelectric Effect
- B.
  
  Compton scattering
- C.
  
  Pair Production
- D.
  
  All as above
3.

Radioactive materials have unstable:
- A.
  
  Nuclei
- B.
  
  Electron
- C.
  
  Proton
- D.
  
  Neutron
4.

The rate at which radioactive isotope changes to a more stable atom is know as the:
- A.
  
  Isotope decay rate
- B.
  
  Half-life
- C.
  
  Activity
- D.
  
  Attenuation
5.

Which of these is the correct definition of half-life?
- A.
  
  The time it takes for the number of protons to halve
- B.
  
  The distance it takes for the number of nuclei to halve
- C.
  
  The time it takes for the number of nuclei to halve
- D.
  
  None of the above
6.

What does alpha radiation consist of?
- A.
  
  One electron
- B.
  
  Two protons and two neutrons
- C.
  
  Electromagnetic radiation
- D.
  
  Two protons and 2 electrons
7.

Which type of radiation is the least penetrating?
- A.
  
  Alpha
- B.
  
  Beta
- C.
  
  Gamma
- D.
  
  X-ray
8.

What shape is the line on a decay curve for a radioactive substance?
- A.
  
  Straight line upwards
- B.
  
  Curve upwards
- C.
  
  Curve downwards
- D.
  
  Logarithmic
9.

What are the two main nuclear fuels?
- A.
  
  Plutonium and mendelevium
- B.
  
  Uranium and curium
- C.
  
  Uranium and strontium
- D.
  
  Uranium and plutonium
10.

Which type of radioactive decay produces light, fast-moving particles?
- A.
  
  Alpha
- B.
  
  Beta
- C.
  
  Gamma
- D.
  
  None of the above
11.

Gamma-ray photons have:
- A.
  
  No mass and no electric charge
- B.
  
  No mass and an electric charge of +1
- C.
  
  No mass and an electric charge of +2
- D.
  
  No mass and an electric charge of -1
12.

Electron Capture involves:
- A.
  
  An electron combining with a neutron
- B.
  
  A neutron being ejected from the nucleus
- C.
  
  An electron being ejected from the nucleus
- D.
  
  An electron combining with a proton
13.

In Alpha Decay:
- A.
  
  Z and A are unchanged
- B.
  
  Z decreases by 4 and A decreases by 2
- C.
  
  Z decreases by 2 and A decreases by 4
- D.
  
  Z decreases by 4 and A decreases by 4
14.

Isomeric Transition involves:
- A.
  
  K-capture
- B.
  
  The conversion of a proton to a neutron
- C.
  
  The conversion of a neutron to a proton
- D.
  
  The emission of a gamma-ray
15.

In Positron Emission:
- A.
  
  Z increases by 1 and A remains the same
- B.
  
  Z decreases by 1 and A remains the same
- C.
  
  Z remains the same and A decreases by 1
- D.
  
  Z remains the same and A increases by 1
16.

Electron Emission involves the ejection of:
- A.
  
  A beta-minus particle
- B.
  
  An alpha-particle
- C.
  
  A beta-plus particle
- D.
  
  A proton and two neutrons
17.

Carbon-11 is a radioactive isotope of carbon. Its half-life is 20 minutes. What fraction of the initial number of C-11 atoms in a sample will have decayed away after 80 minutes?
- A.
  
  1/16
- B.
  
  1/8
- C.
  
  1/4
- D.
  
  1/2
18.

Mass Number is defined as:
- A.
  
  The number of protons in a nucleus
- B.
  
  The complement of the Atomic Number
- C.
  
  The number of neutrons in a nucleus
- D.
  
  The number of protons plus the number of neutrons in a nucleus
19.

Atomic Number is defined as:
- A.
  
  The inverse of the Mass Number
- B.
  
  The number of protons plus the number of neutrons in a nucleus
- C.
  
  The number of protons in a nucleus
- D.
  
  The number of neutrons in a nucleus
20.

Nuclear binding energies are usually expressed in units of:
- A.
  
  KeV
- B.
  
  MeV
- C.
  
  Joules
- D.
  
  EV
21.

The Hydrogen-3 nucleus (also called Tritium) consists of:
- A.
  
  Two neutrons and one proton
- B.
  
  Two protons and one neutron
- C.
  
  Two neutrons and two protons
- D.
  
  Two neutrons and no protons
22.

Radioactivity is the process of:
- A.
  
  A stable nucleus becoming unstable
- B.
  
  An electron moving to a lower energy shell
- C.
  
  An unstable nucleus becoming stable
- D.
  
  An electron moving to a higher energy shell
23.

In the symbol Cs-137, the number 137 represents:
- A.
  
  Avogadro's number
- B.
  
  The mass number
- C.
  
  The number of electrons
- D.
  
  The atomic number
24.

1 MBq is equal to:
- A.
  
  1 billion decays per second
- B.
  
  37 thousand, million curies
- C.
  
  1 decay per second
- D.
  
  1 million decays per second
25.

The Half Life of 99m-Tc is 6 hours. After how much time will one-eighth of the radioactivity in a sample remain?
- A.
  
  6 hours
- B.
  
  12 hours
- C.
  
  18 hours
- D.
  
  24 hours