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ScienceAges 13-15

Electric charge & current (Q = It)

Use Q = It to calculate electric charge in coulombs from steady current and time. Review suitability for your learners before teaching.

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Age band:Ages 13-15Ages 16-18

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Worksheet StudioPractice pack · Ages 13-15

Electric charge & current (Q = It)

Take your time. Show your thinking.

  1. 1. A steady current of 14 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 105 s

  2. 2. A steady current of 4 A flows through a lamp for 83 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 83 s

  3. 3. A steady current of 14 A flows through a lamp for 54 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 54 s

  4. 4. A steady current of 12 A flows through a lamp for 94 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 94 s

  5. 5. A steady current of 5 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 5 A · t = 17 s

  6. 6. A steady current of 11 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 17 s

  7. 7. A steady current of 4 A flows through a lamp for 63 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 63 s

  8. 8. A steady current of 11 A flows through a lamp for 20 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 20 s

  9. 9. A steady current of 4 A flows through a lamp for 37 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 37 s

  10. 10. A steady current of 15 A flows through a lamp for 83 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 83 s

  11. 11. A steady current of 7 A flows through a lamp for 41 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 7 A · t = 41 s

  12. 12. A steady current of 11 A flows through a lamp for 63 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 63 s
12 questions · Seed 56 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 13-15

Electric charge & current (Q = It)

Answers and reasoning. Review before teaching.

  1. 1. A steady current of 14 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    1470 C

    Charge Q = current × time = 14 A × 105 s = 1470 C.

  2. 2. A steady current of 4 A flows through a lamp for 83 s. Calculate the total electric charge transferred using Q = It.

    332 C

    Charge Q = current × time = 4 A × 83 s = 332 C.

  3. 3. A steady current of 14 A flows through a lamp for 54 s. Calculate the total electric charge transferred using Q = It.

    756 C

    Charge Q = current × time = 14 A × 54 s = 756 C.

  4. 4. A steady current of 12 A flows through a lamp for 94 s. Calculate the total electric charge transferred using Q = It.

    1128 C

    Charge Q = current × time = 12 A × 94 s = 1128 C.

  5. 5. A steady current of 5 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    85 C

    Charge Q = current × time = 5 A × 17 s = 85 C.

  6. 6. A steady current of 11 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    187 C

    Charge Q = current × time = 11 A × 17 s = 187 C.

  7. 7. A steady current of 4 A flows through a lamp for 63 s. Calculate the total electric charge transferred using Q = It.

    252 C

    Charge Q = current × time = 4 A × 63 s = 252 C.

  8. 8. A steady current of 11 A flows through a lamp for 20 s. Calculate the total electric charge transferred using Q = It.

    220 C

    Charge Q = current × time = 11 A × 20 s = 220 C.

  9. 9. A steady current of 4 A flows through a lamp for 37 s. Calculate the total electric charge transferred using Q = It.

    148 C

    Charge Q = current × time = 4 A × 37 s = 148 C.

  10. 10. A steady current of 15 A flows through a lamp for 83 s. Calculate the total electric charge transferred using Q = It.

    1245 C

    Charge Q = current × time = 15 A × 83 s = 1245 C.

  11. 11. A steady current of 7 A flows through a lamp for 41 s. Calculate the total electric charge transferred using Q = It.

    287 C

    Charge Q = current × time = 7 A × 41 s = 287 C.

  12. 12. A steady current of 11 A flows through a lamp for 63 s. Calculate the total electric charge transferred using Q = It.

    693 C

    Charge Q = current × time = 11 A × 63 s = 693 C.

12 questions · Seed 56 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 13-15

Electric charge & current (Q = It)

Take your time. Show your thinking.

  1. 1. A steady current of 14 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 105 s

  2. 2. A steady current of 4 A flows through a lamp for 83 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 83 s

  3. 3. A steady current of 14 A flows through a lamp for 54 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 54 s

  4. 4. A steady current of 12 A flows through a lamp for 94 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 94 s

  5. 5. A steady current of 5 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 5 A · t = 17 s

  6. 6. A steady current of 11 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 17 s

  7. 7. A steady current of 4 A flows through a lamp for 63 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 63 s

  8. 8. A steady current of 11 A flows through a lamp for 20 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 20 s

  9. 9. A steady current of 4 A flows through a lamp for 37 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 37 s

  10. 10. A steady current of 15 A flows through a lamp for 83 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 83 s

  11. 11. A steady current of 7 A flows through a lamp for 41 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 7 A · t = 41 s

  12. 12. A steady current of 11 A flows through a lamp for 63 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 63 s
12 questions · Seed 56 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 13-15

Electric charge & current (Q = It)

Answers and reasoning. Review before teaching.

  1. 1. A steady current of 14 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    1470 C

    Charge Q = current × time = 14 A × 105 s = 1470 C.

  2. 2. A steady current of 4 A flows through a lamp for 83 s. Calculate the total electric charge transferred using Q = It.

    332 C

    Charge Q = current × time = 4 A × 83 s = 332 C.

  3. 3. A steady current of 14 A flows through a lamp for 54 s. Calculate the total electric charge transferred using Q = It.

    756 C

    Charge Q = current × time = 14 A × 54 s = 756 C.

  4. 4. A steady current of 12 A flows through a lamp for 94 s. Calculate the total electric charge transferred using Q = It.

    1128 C

    Charge Q = current × time = 12 A × 94 s = 1128 C.

  5. 5. A steady current of 5 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    85 C

    Charge Q = current × time = 5 A × 17 s = 85 C.

  6. 6. A steady current of 11 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    187 C

    Charge Q = current × time = 11 A × 17 s = 187 C.

  7. 7. A steady current of 4 A flows through a lamp for 63 s. Calculate the total electric charge transferred using Q = It.

    252 C

    Charge Q = current × time = 4 A × 63 s = 252 C.

  8. 8. A steady current of 11 A flows through a lamp for 20 s. Calculate the total electric charge transferred using Q = It.

    220 C

    Charge Q = current × time = 11 A × 20 s = 220 C.

  9. 9. A steady current of 4 A flows through a lamp for 37 s. Calculate the total electric charge transferred using Q = It.

    148 C

    Charge Q = current × time = 4 A × 37 s = 148 C.

  10. 10. A steady current of 15 A flows through a lamp for 83 s. Calculate the total electric charge transferred using Q = It.

    1245 C

    Charge Q = current × time = 15 A × 83 s = 1245 C.

  11. 11. A steady current of 7 A flows through a lamp for 41 s. Calculate the total electric charge transferred using Q = It.

    287 C

    Charge Q = current × time = 7 A × 41 s = 287 C.

  12. 12. A steady current of 11 A flows through a lamp for 63 s. Calculate the total electric charge transferred using Q = It.

    693 C

    Charge Q = current × time = 11 A × 63 s = 693 C.

12 questions · Seed 56 · Age guidance, not curriculum certification