← Cells and batteries lesson New set →

Electronics Worksheet: Cells and Batteries

Electronics lesson 6: Cells and batteries · Set 97 · 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.🔋 6 identical 1.2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  2. 2.🔋 6 identical 1.5 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  3. 3.🔋 On a cell, does “the flat end” mean the + end or the − end? (a) + (positive) (b) − (negative)
  4. 4.True or false: on a cell, “the longer symbol line” means the − (negative) end. (a) False (b) True
  5. 5.🔋 What should you do with used-up cells? (a) give them for recycling (b) bury them in soil (c) throw them in a fire (d) cut them open
  6. 6.🔋 On a cell, does “usually the red wire” mean the + end or the − end? (a) + (positive) (b) − (negative)
  7. 7.🔋 A 6 V battery and four 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
  8. 8.🔋 Identical cells side by side (in parallel) give … (a) the same voltage (b) no voltage (c) double the voltage (d) half the voltage
  9. 9.🔋 On a cell, does “the end with a bump” mean the + end or the − end? (a) − (negative) (b) + (positive)
  10. 10.🔋 On a cell, does “usually the black wire” mean the + end or the − end? (a) − (negative) (b) + (positive)
  11. 11.🔋 On a cell, does “the longer symbol line” mean the + end or the − end? (a) − (negative) (b) + (positive)
  12. 12.🔋 3 identical 1.2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  13. 13.🔋 5 identical 1.5 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  14. 14.🔋 How many volts does one ordinary torch cell give? (a) 0.5 V (b) 15 V (c) 1.5 V (d) 230 V
  15. 15.🔋 On a cell, does “the shorter symbol line” mean the + end or the − end? (a) + (positive) (b) − (negative)
  16. 16.🔋 What is a battery? (a) a switch with a lid (b) one single wire (c) a kind of bulb (d) two or more cells joined
  17. 17.True or false: on a cell, “the shorter symbol line” means the + (positive) end. (a) True (b) False
  18. 18.🔋 8 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)? =
  19. 19.True or false: on a cell, “the flat end” means the − (negative) end. (a) False (b) True
  20. 20.🔋 A 12 V battery and four 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
  21. 21.True or false: on a cell, “the end with a bump” means the + (positive) end. (a) False (b) True
  22. 22.🔋 4 identical 1.2 V cells are joined side by side in parallel (all + ends together, all − ends together). What is the voltage across them (in volts)? =
  23. 23.🔋 5 identical 1.2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  24. 24.🔋 A 9 V battery and four 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
  25. 25.🔋 A 12 V battery and two 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
  26. 26.🔋 6 identical 2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  27. 27.🔋 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)? =
  28. 28.🔋 How many 3 V cells must be joined in series to give 9 V?
  29. 29.🔋 2 identical 1.2 V cells are joined side by side in parallel (all + ends together, all − ends together). What is the voltage across them (in volts)? =
  30. 30.True or false: on a cell, “usually the black wire” means the − (negative) end. (a) True (b) False
  31. 31.🔋 5 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)? =
  32. 32.🔋 How many 1.5 V cells must be joined in series to give 6 V?
  33. 33.🔋 How many 1.5 V cells must be joined in series to give 4.5 V?
  34. 34.True or false: on a cell, “usually the red wire” means the − (negative) end. (a) True (b) False
  35. 35.🔋 A 6 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.🔋 5 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)? =
  37. 37.🔋 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)? =
  38. 38.🔋 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)? =
  39. 39.🔋 How many 3 V cells must be joined in series to give 15 V?
  40. 40.True or false: on a cell, “usually the red wire” means the + (positive) end. (a) True (b) False

Answer key

  1. 7.2
  2. 9
  3. − (negative)
  4. False
  5. give them for recycling
  6. + (positive)
  7. 12
  8. the same voltage
  9. + (positive)
  10. − (negative)
  11. + (positive)
  12. 3.6
  13. 7.5
  14. 1.5 V
  15. − (negative)
  16. two or more cells joined
  17. False
  18. 9
  19. True
  20. 18
  21. True
  22. 1.2
  23. 6
  24. 15
  25. 15
  26. 12
  27. 1.5
  28. 3
  29. 1.2
  30. True
  31. 4.5
  32. 4
  33. 3
  34. False
  35. 7.5
  36. 2
  37. 12
  38. 13.5
  39. 5
  40. True

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