← Cells and batteries lesson New set →

Electronics Worksheet: Cells and Batteries

Electronics lesson 6: Cells and batteries · Set 106 · 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.🔋 3 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)? =
  2. 2.🔋 How many volts does one ordinary torch cell give? (a) 0.5 V (b) 15 V (c) 230 V (d) 1.5 V
  3. 3.🔋 6 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)? =
  4. 4.True or false: on a cell, “the shorter symbol line” means the + (positive) end. (a) False (b) True
  5. 5.🔋 5 identical 3 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  6. 6.True or false: on a cell, “the end with a bump” means the + (positive) end. (a) True (b) False
  7. 7.True or false: on a cell, “the shorter symbol line” means the − (negative) end. (a) True (b) False
  8. 8.🔋 How many 1.5 V cells must be joined in series to give 12 V?
  9. 9.🔋 A 9 V battery and one 1.5 V cell are joined in series, all facing the same way. What is the total voltage (in volts)? =
  10. 10.🔋 On a cell, does “usually the black wire” mean the + end or the − end? (a) + (positive) (b) − (negative)
  11. 11.True or false: on a cell, “usually the black wire” means the − (negative) end. (a) False (b) True
  12. 12.🔋 What should you do with used-up cells? (a) cut them open (b) throw them in a fire (c) bury them in soil (d) give them for recycling
  13. 13.🔋 On a cell, does “the longer symbol line” mean the + end or the − end? (a) − (negative) (b) + (positive)
  14. 14.🔋 On a cell, does “the flat end” mean the + end or the − end? (a) − (negative) (b) + (positive)
  15. 15.True or false: on a cell, “the longer symbol line” means the + (positive) end. (a) True (b) False
  16. 16.🔋 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)? =
  17. 17.🔋 Cells joined + to − in a row (series) give … (a) a bigger voltage (b) a smaller voltage (c) no voltage (d) the same voltage
  18. 18.🔋 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)? =
  19. 19.🔋 3 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)? =
  20. 20.🔋 How many 1.5 V cells must be joined in series to give 4.5 V?
  21. 21.🔋 What is a battery? (a) a switch with a lid (b) one single wire (c) two or more cells joined (d) a kind of bulb
  22. 22.🔋 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)? =
  23. 23.🔋 Identical cells side by side (in parallel) give … (a) no voltage (b) the same voltage (c) half the voltage (d) double the voltage
  24. 24.🔋 8 identical 1.2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  25. 25.🔋 A 3 V battery and three 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
  26. 26.🔋 4 identical 2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  27. 27.🔋 On a cell, does “the shorter symbol line” mean the + end or the − end? (a) − (negative) (b) + (positive)
  28. 28.🔋 On a cell, does “usually the red wire” mean the + end or the − end? (a) − (negative) (b) + (positive)
  29. 29.🔋 2 identical 3 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 red wire” means the − (negative) end. (a) False (b) True
  31. 31.🔋 6 identical 2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  32. 32.🔋 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)? =
  33. 33.🔋 4 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)? =
  34. 34.🔋 On a cell, does “the end with a bump” mean the + end or the − end? (a) − (negative) (b) + (positive)
  35. 35.🔋 2 identical 1.2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  36. 36.🔋 4 identical 1.2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  37. 37.🔋 3 identical 3 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  38. 38.True or false: on a cell, “the flat end” means the − (negative) end. (a) False (b) True
  39. 39.True or false: on a cell, “usually the red wire” means the + (positive) end. (a) False (b) True
  40. 40.🔋 How many 3 V cells must be joined in series to give 15 V?

Answer key

  1. 2
  2. 1.5 V
  3. 6
  4. False
  5. 15
  6. True
  7. True
  8. 8
  9. 10.5
  10. − (negative)
  11. True
  12. give them for recycling
  13. + (positive)
  14. − (negative)
  15. True
  16. 7.5
  17. a bigger voltage
  18. 4.5
  19. 1.5
  20. 3
  21. two or more cells joined
  22. 1.5
  23. the same voltage
  24. 9.6
  25. 7.5
  26. 8
  27. − (negative)
  28. + (positive)
  29. 3
  30. False
  31. 12
  32. 1.5
  33. 3
  34. + (positive)
  35. 2.4
  36. 4.8
  37. 9
  38. True
  39. True
  40. 5

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