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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 15 A flows through a lamp for 21 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 21 s

  2. 2. A steady current of 3 A flows through a lamp for 36 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 3 A · t = 36 s

  3. 3. A steady current of 14 A flows through a lamp for 37 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 37 s

  4. 4. A steady current of 3 A flows through a lamp for 109 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 3 A · t = 109 s

  5. 5. A steady current of 4 A flows through a lamp for 39 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 39 s

  6. 6. A steady current of 11 A flows through a lamp for 69 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 69 s

  7. 7. A steady current of 6 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 6 A · t = 105 s

  8. 8. A steady current of 3 A flows through a lamp for 65 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 3 A · t = 65 s

  9. 9. A steady current of 5 A flows through a lamp for 43 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 5 A · t = 43 s

  10. 10. A steady current of 15 A flows through a lamp for 89 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 89 s

  11. 11. A steady current of 7 A flows through a lamp for 8 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 7 A · t = 8 s

  12. 12. A steady current of 1 A flows through a lamp for 55 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 1 A · t = 55 s
12 questions · Seed 104729 · 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 15 A flows through a lamp for 21 s. Calculate the total electric charge transferred using Q = It.

    315 C

    Charge Q = current × time = 15 A × 21 s = 315 C.

  2. 2. A steady current of 3 A flows through a lamp for 36 s. Calculate the total electric charge transferred using Q = It.

    108 C

    Charge Q = current × time = 3 A × 36 s = 108 C.

  3. 3. A steady current of 14 A flows through a lamp for 37 s. Calculate the total electric charge transferred using Q = It.

    518 C

    Charge Q = current × time = 14 A × 37 s = 518 C.

  4. 4. A steady current of 3 A flows through a lamp for 109 s. Calculate the total electric charge transferred using Q = It.

    327 C

    Charge Q = current × time = 3 A × 109 s = 327 C.

  5. 5. A steady current of 4 A flows through a lamp for 39 s. Calculate the total electric charge transferred using Q = It.

    156 C

    Charge Q = current × time = 4 A × 39 s = 156 C.

  6. 6. A steady current of 11 A flows through a lamp for 69 s. Calculate the total electric charge transferred using Q = It.

    759 C

    Charge Q = current × time = 11 A × 69 s = 759 C.

  7. 7. A steady current of 6 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    630 C

    Charge Q = current × time = 6 A × 105 s = 630 C.

  8. 8. A steady current of 3 A flows through a lamp for 65 s. Calculate the total electric charge transferred using Q = It.

    195 C

    Charge Q = current × time = 3 A × 65 s = 195 C.

  9. 9. A steady current of 5 A flows through a lamp for 43 s. Calculate the total electric charge transferred using Q = It.

    215 C

    Charge Q = current × time = 5 A × 43 s = 215 C.

  10. 10. A steady current of 15 A flows through a lamp for 89 s. Calculate the total electric charge transferred using Q = It.

    1335 C

    Charge Q = current × time = 15 A × 89 s = 1335 C.

  11. 11. A steady current of 7 A flows through a lamp for 8 s. Calculate the total electric charge transferred using Q = It.

    56 C

    Charge Q = current × time = 7 A × 8 s = 56 C.

  12. 12. A steady current of 1 A flows through a lamp for 55 s. Calculate the total electric charge transferred using Q = It.

    55 C

    Charge Q = current × time = 1 A × 55 s = 55 C.

12 questions · Seed 104729 · 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 15 A flows through a lamp for 21 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 21 s

  2. 2. A steady current of 3 A flows through a lamp for 36 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 3 A · t = 36 s

  3. 3. A steady current of 14 A flows through a lamp for 37 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 37 s

  4. 4. A steady current of 3 A flows through a lamp for 109 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 3 A · t = 109 s

  5. 5. A steady current of 4 A flows through a lamp for 39 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 39 s

  6. 6. A steady current of 11 A flows through a lamp for 69 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 69 s

  7. 7. A steady current of 6 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 6 A · t = 105 s

  8. 8. A steady current of 3 A flows through a lamp for 65 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 3 A · t = 65 s

  9. 9. A steady current of 5 A flows through a lamp for 43 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 5 A · t = 43 s

  10. 10. A steady current of 15 A flows through a lamp for 89 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 89 s

  11. 11. A steady current of 7 A flows through a lamp for 8 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 7 A · t = 8 s

  12. 12. A steady current of 1 A flows through a lamp for 55 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 1 A · t = 55 s
12 questions · Seed 104729 · 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 15 A flows through a lamp for 21 s. Calculate the total electric charge transferred using Q = It.

    315 C

    Charge Q = current × time = 15 A × 21 s = 315 C.

  2. 2. A steady current of 3 A flows through a lamp for 36 s. Calculate the total electric charge transferred using Q = It.

    108 C

    Charge Q = current × time = 3 A × 36 s = 108 C.

  3. 3. A steady current of 14 A flows through a lamp for 37 s. Calculate the total electric charge transferred using Q = It.

    518 C

    Charge Q = current × time = 14 A × 37 s = 518 C.

  4. 4. A steady current of 3 A flows through a lamp for 109 s. Calculate the total electric charge transferred using Q = It.

    327 C

    Charge Q = current × time = 3 A × 109 s = 327 C.

  5. 5. A steady current of 4 A flows through a lamp for 39 s. Calculate the total electric charge transferred using Q = It.

    156 C

    Charge Q = current × time = 4 A × 39 s = 156 C.

  6. 6. A steady current of 11 A flows through a lamp for 69 s. Calculate the total electric charge transferred using Q = It.

    759 C

    Charge Q = current × time = 11 A × 69 s = 759 C.

  7. 7. A steady current of 6 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    630 C

    Charge Q = current × time = 6 A × 105 s = 630 C.

  8. 8. A steady current of 3 A flows through a lamp for 65 s. Calculate the total electric charge transferred using Q = It.

    195 C

    Charge Q = current × time = 3 A × 65 s = 195 C.

  9. 9. A steady current of 5 A flows through a lamp for 43 s. Calculate the total electric charge transferred using Q = It.

    215 C

    Charge Q = current × time = 5 A × 43 s = 215 C.

  10. 10. A steady current of 15 A flows through a lamp for 89 s. Calculate the total electric charge transferred using Q = It.

    1335 C

    Charge Q = current × time = 15 A × 89 s = 1335 C.

  11. 11. A steady current of 7 A flows through a lamp for 8 s. Calculate the total electric charge transferred using Q = It.

    56 C

    Charge Q = current × time = 7 A × 8 s = 56 C.

  12. 12. A steady current of 1 A flows through a lamp for 55 s. Calculate the total electric charge transferred using Q = It.

    55 C

    Charge Q = current × time = 1 A × 55 s = 55 C.

12 questions · Seed 104729 · Age guidance, not curriculum certification