← Cells and batteries lesson New set →

Electronics Worksheet: Cells and Batteries

Electronics lesson 6: Cells and batteries · Set 920 · 40 questions
TalentJR

Remember (Line them up, add them up): Series (+ to −): total voltage = add the cells; n identical cells = n × one cell. Parallel (identical cells, + with +): the voltage stays the same as one cell. The bump end is +, the flat end is −; the long line in the symbol is +.

NameDateTime takenScore ___ / 40
  1. 1.🔋 How many 1.5 V cells must be joined in series to give 9 V?
  2. 2.🔋 On a cell, does “the flat end” mean the + end or the − end? (a) + (positive) (b) − (negative)
  3. 3.🔋 On a cell, does “the end with a bump” mean the + end or the − end? (a) − (negative) (b) + (positive)
  4. 4.🔋 A 9 V battery and two 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
  5. 5.🔋 On a cell, does “the longer symbol line” mean the + end or the − end? (a) + (positive) (b) − (negative)
  6. 6.🔋 4 identical 3 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  7. 7.True or false: on a cell, “usually the black wire” means the + (positive) end. (a) False (b) True
  8. 8.🔋 3 identical 3 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  9. 9.True or false: on a cell, “usually the red wire” means the − (negative) end. (a) False (b) True
  10. 10.True or false: on a cell, “the flat end” means the + (positive) end. (a) True (b) False
  11. 11.🔋 On a cell, does “usually the red wire” mean the + end or the − end? (a) + (positive) (b) − (negative)
  12. 12.🔋 How many 1.2 V cells must be joined in series to give 7.2 V?
  13. 13.🔋 How many 1.2 V cells must be joined in series to give 2.4 V?
  14. 14.🔋 What is a battery? (a) two or more cells joined (b) a kind of bulb (c) a switch with a lid (d) one single wire
  15. 15.🔋 Identical cells side by side (in parallel) give … (a) double the voltage (b) the same voltage (c) no voltage (d) half the voltage
  16. 16.🔋 3 identical 1.5 V cells are joined in series, but one of them is put in the wrong way round. What is the total voltage now (in volts)? =
  17. 17.True or false: on a cell, “usually the red wire” means the + (positive) end. (a) False (b) True
  18. 18.True or false: on a cell, “the end with a bump” means the − (negative) end. (a) True (b) False
  19. 19.True or false: on a cell, “the end with a bump” means the + (positive) end. (a) False (b) True
  20. 20.🔋 On a cell, does “usually the black wire” mean the + end or the − end? (a) − (negative) (b) + (positive)
  21. 21.🔋 How many volts does one ordinary torch cell give? (a) 15 V (b) 230 V (c) 0.5 V (d) 1.5 V
  22. 22.🔋 A 12 V battery and one 1.5 V cell are joined in series, all facing the same way. What is the total voltage (in volts)? =
  23. 23.True or false: on a cell, “the longer symbol line” means the − (negative) end. (a) False (b) True
  24. 24.🔋 Cells joined + to − in a row (series) give … (a) no voltage (b) the same voltage (c) a bigger voltage (d) a smaller voltage
  25. 25.🔋 8 identical 1.2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  26. 26.True or false: on a cell, “the shorter symbol line” means the + (positive) end. (a) True (b) False
  27. 27.🔋 How many 1.2 V cells must be joined in series to give 4.8 V?
  28. 28.🔋 5 identical 1.5 V cells are joined side by side in parallel (all + ends together, all − ends together). What is the voltage across them (in volts)? =
  29. 29.🔋 7 identical 1.5 V cells are joined in series, but one of them is put in the wrong way round. What is the total voltage now (in volts)? =
  30. 30.🔋 On a cell, does “the shorter symbol line” mean the + end or the − end? (a) − (negative) (b) + (positive)
  31. 31.🔋 2 identical 3 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  32. 32.🔋 2 identical 2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  33. 33.🔋 6 identical 3 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  34. 34.🔋 How many 3 V cells must be joined in series to give 21 V?
  35. 35.🔋 A 3 V battery and one 1.5 V cell are joined in series, all facing the same way. What is the total voltage (in volts)? =
  36. 36.True or false: on a cell, “the shorter symbol line” means the − (negative) end. (a) False (b) True
  37. 37.🔋 2 identical 1.2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  38. 38.🔋 6 identical 2 V cells are joined side by side in parallel (all + ends together, all − ends together). What is the voltage across them (in volts)? =
  39. 39.🔋 How many 1.5 V cells must be joined in series to give 3 V?
  40. 40.🔋 3 identical 1.2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =

Answer key

  1. 6
  2. − (negative)
  3. + (positive)
  4. 12
  5. + (positive)
  6. 12
  7. False
  8. 9
  9. False
  10. False
  11. + (positive)
  12. 6
  13. 2
  14. two or more cells joined
  15. the same voltage
  16. 1.5
  17. True
  18. False
  19. True
  20. − (negative)
  21. 1.5 V
  22. 13.5
  23. False
  24. a bigger voltage
  25. 9.6
  26. False
  27. 4
  28. 1.5
  29. 7.5
  30. − (negative)
  31. 6
  32. 4
  33. 18
  34. 7
  35. 4.5
  36. True
  37. 2.4
  38. 2
  39. 2
  40. 3.6

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids