Lesson Worksheet: The Electron Volt Physics • 9th Grade
In this worksheet, we will practice defining the unit of an electron volt and converting between electron volts and other energy units.
Q1:
What is J in electron volts?
Q2:
How many electron volts are in 1 MeV?
- A
- B
- C
- D
- E
Q3:
How many electron volts are in 1 keV?
Q4:
An electron is accelerated across a potential difference of V. The electron moves in a vacuum. What is the kinetic energy, in electron volts, of the electron once it has crossed this potential difference?
Q5:
What is J in mega-electron volts? Give your answer to one decimal place.
Q6:
What is J in kilo-electron volts?
Q7:
What is 30 keV in joules?
- A0.030 J
- B J
- C J
- D J
- E J
Q8:
What is 14 eV in joules? Give your answer in scientific notation to two decimal places.
- A J
- B J
- C J
- D J
- E J
Q9:
What is 930 MeV in joules?
- A J
- B J
- C J
- D J
- E930 J
Q10:
How many giga-electron volts are there in 1 J? Use a value of C for the charge of one electron.
- A GeV
- B GeV
- C GeV
- D GeV
- E GeV
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