← Cells and batteries lesson New set →

Electronics Worksheet: Cells and Batteries

Electronics lesson 6: Cells and batteries · Set 574 · 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.True or false: on a cell, “the flat end” means the + (positive) end. (a) True (b) False
  2. 2.🔋 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)? =
  3. 3.🔋 6 identical 1.2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  4. 4.🔋 What should you do with used-up cells? (a) bury them in soil (b) give them for recycling (c) cut them open (d) throw them in a fire
  5. 5.🔋 How many 3 V cells must be joined in series to give 6 V?
  6. 6.🔋 On a cell, does “usually the red wire” mean the + end or the − end? (a) + (positive) (b) − (negative)
  7. 7.True or false: on a cell, “the shorter symbol line” means the − (negative) end. (a) True (b) False
  8. 8.True or false: on a cell, “usually the red wire” means the − (negative) end. (a) False (b) True
  9. 9.🔋 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)? =
  10. 10.🔋 How many 2 V cells must be joined in series to give 16 V?
  11. 11.🔋 8 identical 2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  12. 12.🔋 On a cell, does “the flat end” mean the + end or the − end? (a) + (positive) (b) − (negative)
  13. 13.🔋 6 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)? =
  14. 14.🔋 Cells joined + to − in a row (series) give … (a) a smaller voltage (b) the same voltage (c) a bigger voltage (d) no voltage
  15. 15.🔋 On a cell, does “usually the black wire” mean the + end or the − end? (a) + (positive) (b) − (negative)
  16. 16.🔋 How many volts does one ordinary torch cell give? (a) 230 V (b) 15 V (c) 0.5 V (d) 1.5 V
  17. 17.🔋 3 identical 3 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  18. 18.🔋 On a cell, does “the longer symbol line” mean the + end or the − end? (a) − (negative) (b) + (positive)
  19. 19.🔋 3 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)? =
  20. 20.🔋 On a cell, does “the shorter symbol line” mean the + end or the − end? (a) − (negative) (b) + (positive)
  21. 21.True or false: on a cell, “the end with a bump” means the − (negative) end. (a) False (b) True
  22. 22.🔋 How many 1.5 V cells must be joined in series to give 6 V?
  23. 23.🔋 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
  24. 24.True or false: on a cell, “usually the black wire” means the + (positive) end. (a) False (b) True
  25. 25.🔋 How many 1.2 V cells must be joined in series to give 8.4 V?
  26. 26.True or false: on a cell, “the flat end” means the − (negative) end. (a) False (b) True
  27. 27.True or false: on a cell, “the shorter symbol line” means the + (positive) end. (a) True (b) False
  28. 28.🔋 A 6 V battery and two 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
  29. 29.True or false: on a cell, “the longer symbol line” means the − (negative) end. (a) True (b) False
  30. 30.🔋 A 6 V battery and three 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
  31. 31.🔋 5 identical 2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  32. 32.True or false: on a cell, “the longer symbol line” means the + (positive) end. (a) True (b) False
  33. 33.🔋 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)? =
  34. 34.🔋 6 identical 3 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
  35. 35.True or false: on a cell, “usually the black wire” means the − (negative) end. (a) True (b) False
  36. 36.🔋 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)? =
  37. 37.🔋 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)? =
  38. 38.🔋 On a cell, does “the end with a bump” mean the + end or the − end? (a) − (negative) (b) + (positive)
  39. 39.🔋 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)? =
  40. 40.True or false: on a cell, “usually the red wire” means the + (positive) end. (a) True (b) False

Answer key

  1. False
  2. 1.5
  3. 7.2
  4. give them for recycling
  5. 2
  6. + (positive)
  7. True
  8. False
  9. 6
  10. 8
  11. 16
  12. − (negative)
  13. 3
  14. a bigger voltage
  15. − (negative)
  16. 1.5 V
  17. 9
  18. + (positive)
  19. 3
  20. − (negative)
  21. False
  22. 4
  23. two or more cells joined
  24. False
  25. 7
  26. True
  27. False
  28. 9
  29. False
  30. 10.5
  31. 10
  32. True
  33. 4.5
  34. 18
  35. True
  36. 3
  37. 7.5
  38. + (positive)
  39. 2
  40. True

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