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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 9 A flows through a lamp for 97 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 9 A · t = 97 s

  2. 2. A steady current of 12 A flows through a lamp for 33 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 33 s

  3. 3. A steady current of 6 A flows through a lamp for 29 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 6 A · t = 29 s

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

    +−R
    I = 12 A · t = 55 s

  5. 5. A steady current of 5 A flows through a lamp for 42 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 5 A · t = 42 s

  6. 6. A steady current of 13 A flows through a lamp for 7 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 7 s

  7. 7. A steady current of 8 A flows through a lamp for 70 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 8 A · t = 70 s

  8. 8. A steady current of 13 A flows through a lamp for 73 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 73 s

  9. 9. A steady current of 13 A flows through a lamp for 102 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 102 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 2 A flows through a lamp for 57 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 57 s

  12. 12. A steady current of 12 A flows through a lamp for 44 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 44 s
12 questions · Seed 53 · 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 9 A flows through a lamp for 97 s. Calculate the total electric charge transferred using Q = It.

    873 C

    Charge Q = current × time = 9 A × 97 s = 873 C.

  2. 2. A steady current of 12 A flows through a lamp for 33 s. Calculate the total electric charge transferred using Q = It.

    396 C

    Charge Q = current × time = 12 A × 33 s = 396 C.

  3. 3. A steady current of 6 A flows through a lamp for 29 s. Calculate the total electric charge transferred using Q = It.

    174 C

    Charge Q = current × time = 6 A × 29 s = 174 C.

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

    660 C

    Charge Q = current × time = 12 A × 55 s = 660 C.

  5. 5. A steady current of 5 A flows through a lamp for 42 s. Calculate the total electric charge transferred using Q = It.

    210 C

    Charge Q = current × time = 5 A × 42 s = 210 C.

  6. 6. A steady current of 13 A flows through a lamp for 7 s. Calculate the total electric charge transferred using Q = It.

    91 C

    Charge Q = current × time = 13 A × 7 s = 91 C.

  7. 7. A steady current of 8 A flows through a lamp for 70 s. Calculate the total electric charge transferred using Q = It.

    560 C

    Charge Q = current × time = 8 A × 70 s = 560 C.

  8. 8. A steady current of 13 A flows through a lamp for 73 s. Calculate the total electric charge transferred using Q = It.

    949 C

    Charge Q = current × time = 13 A × 73 s = 949 C.

  9. 9. A steady current of 13 A flows through a lamp for 102 s. Calculate the total electric charge transferred using Q = It.

    1326 C

    Charge Q = current × time = 13 A × 102 s = 1326 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 2 A flows through a lamp for 57 s. Calculate the total electric charge transferred using Q = It.

    114 C

    Charge Q = current × time = 2 A × 57 s = 114 C.

  12. 12. A steady current of 12 A flows through a lamp for 44 s. Calculate the total electric charge transferred using Q = It.

    528 C

    Charge Q = current × time = 12 A × 44 s = 528 C.

12 questions · Seed 53 · 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 9 A flows through a lamp for 97 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 9 A · t = 97 s

  2. 2. A steady current of 12 A flows through a lamp for 33 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 33 s

  3. 3. A steady current of 6 A flows through a lamp for 29 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 6 A · t = 29 s

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

    +−R
    I = 12 A · t = 55 s

  5. 5. A steady current of 5 A flows through a lamp for 42 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 5 A · t = 42 s

  6. 6. A steady current of 13 A flows through a lamp for 7 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 7 s

  7. 7. A steady current of 8 A flows through a lamp for 70 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 8 A · t = 70 s

  8. 8. A steady current of 13 A flows through a lamp for 73 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 73 s

  9. 9. A steady current of 13 A flows through a lamp for 102 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 102 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 2 A flows through a lamp for 57 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 57 s

  12. 12. A steady current of 12 A flows through a lamp for 44 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 44 s
12 questions · Seed 53 · 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 9 A flows through a lamp for 97 s. Calculate the total electric charge transferred using Q = It.

    873 C

    Charge Q = current × time = 9 A × 97 s = 873 C.

  2. 2. A steady current of 12 A flows through a lamp for 33 s. Calculate the total electric charge transferred using Q = It.

    396 C

    Charge Q = current × time = 12 A × 33 s = 396 C.

  3. 3. A steady current of 6 A flows through a lamp for 29 s. Calculate the total electric charge transferred using Q = It.

    174 C

    Charge Q = current × time = 6 A × 29 s = 174 C.

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

    660 C

    Charge Q = current × time = 12 A × 55 s = 660 C.

  5. 5. A steady current of 5 A flows through a lamp for 42 s. Calculate the total electric charge transferred using Q = It.

    210 C

    Charge Q = current × time = 5 A × 42 s = 210 C.

  6. 6. A steady current of 13 A flows through a lamp for 7 s. Calculate the total electric charge transferred using Q = It.

    91 C

    Charge Q = current × time = 13 A × 7 s = 91 C.

  7. 7. A steady current of 8 A flows through a lamp for 70 s. Calculate the total electric charge transferred using Q = It.

    560 C

    Charge Q = current × time = 8 A × 70 s = 560 C.

  8. 8. A steady current of 13 A flows through a lamp for 73 s. Calculate the total electric charge transferred using Q = It.

    949 C

    Charge Q = current × time = 13 A × 73 s = 949 C.

  9. 9. A steady current of 13 A flows through a lamp for 102 s. Calculate the total electric charge transferred using Q = It.

    1326 C

    Charge Q = current × time = 13 A × 102 s = 1326 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 2 A flows through a lamp for 57 s. Calculate the total electric charge transferred using Q = It.

    114 C

    Charge Q = current × time = 2 A × 57 s = 114 C.

  12. 12. A steady current of 12 A flows through a lamp for 44 s. Calculate the total electric charge transferred using Q = It.

    528 C

    Charge Q = current × time = 12 A × 44 s = 528 C.

12 questions · Seed 53 · Age guidance, not curriculum certification