Electron Volt -Multiple Choice Questions Quiz

Interactive MCQs on โ€œElectron Voltโ€:

Solve the following 10 questions. Only one option is correct. Click on the โ€œSubmitโ€ button when done. Click on the โ€œembedโ€ button to use this quiz on your website. Click on โ€œWhatsAppโ€ to share this quiz.

Question 1: What is an electron volt (eV) a unit of?

(a) Electric charge
(b) Electric current
(c) Energy
(d) Voltage

Question 2: What is the value of one electron volt (eV) in joules (J)?

(a) 1.6 x 10^-19 J
(b) 1.6 x 10^-12 J
(c) 1.6 x 10^-9 J
(d) 1.6 x 10^-6 J

Question 3: Which of the following particles has a charge of approximately +1 eV?

(a) Proton
(b) Electron
(c) Neutron
(d) Photon

Question 4: What does it mean if an electron gains 3 eV of energy?

(a) The electron has gained 3 units of electric charge.
(b) The electron has accelerated to a speed of 3 meters per second.
(c) The electron has gained 3 joules of kinetic energy.
(d) The electron has gained 3 volts of electric potential.

Question 5: What is the kinetic energy of an electron accelerated through a potential difference of 10 volts?

(a) 1.6 x 10^-19 J
(b) 10 eV
(c) 16 x 10^-19 J
(d) 1.6 x 10^-18 J

Question 6: Which of the following statements about electron volt (eV) is true?

(a) It is a unit of electric charge.
(b) It is used to measure the electric potential difference.
(c) It is equal to the charge of a single electron.
(d) It is a convenient unit for expressing atomic and subatomic energies.

Question 7: A photon with an energy of 2.5 eV strikes a material and releases an electron with a kinetic energy of 1.8 eV. What is the work function of the material?

(a) 0.7 eV
(b) 4.3 eV
(c) 3.7 eV
(d) 0.3 eV

Question 8: What is the kinetic energy of an electron at rest?

(a) 1 eV
(b) 0 eV
(c) -1 eV
(d) 0.5 eV

Question 9: Which scientific field commonly uses electron volts (eV) as a unit for expressing particle energies?

(a) Geology
(b) Astrophysics
(c) Chemistry
(d) Particle physics

Question 10: What is the energy equivalent of one mole of photons, each with a wavelength of 600 nm (nanometers)?

(a) 1.6 x 10^-19 J
(b) 6.022 x 10^23 eV
(c) 360 kJ
(d) 22.4 eV