Small practice. Bright discoveries.Explore the free starter collection
worksheetstudio.
Sign in
Back to worksheets
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.

New variationTry interactive challengeBrowse templates
Age band:Ages 13-15Ages 16-18

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 13-15

Electric charge & current (Q = It)

Take your time. Show your thinking.

  1. 1. A steady current of 4 A flows through a lamp for 31 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 31 s

  2. 2. A steady current of 12 A flows through a lamp for 74 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 74 s

  3. 3. A steady current of 10 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 10 A · t = 105 s

  4. 4. A steady current of 1 A flows through a lamp for 67 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 1 A · t = 67 s

  5. 5. A steady current of 13 A flows through a lamp for 81 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 81 s

  6. 6. A steady current of 8 A flows through a lamp for 106 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 8 A · t = 106 s

  7. 7. A steady current of 9 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 9 A · t = 26 s

  8. 8. A steady current of 15 A flows through a lamp for 16 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 16 s

  9. 9. A steady current of 13 A flows through a lamp for 22 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 22 s

  10. 10. A steady current of 5 A flows through a lamp for 35 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 5 A · t = 35 s

  11. 11. A steady current of 4 A flows through a lamp for 92 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 92 s

  12. 12. A steady current of 2 A flows through a lamp for 88 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 88 s
12 questions · Seed 42 · 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 4 A flows through a lamp for 31 s. Calculate the total electric charge transferred using Q = It.

    124 C

    Charge Q = current × time = 4 A × 31 s = 124 C.

  2. 2. A steady current of 12 A flows through a lamp for 74 s. Calculate the total electric charge transferred using Q = It.

    888 C

    Charge Q = current × time = 12 A × 74 s = 888 C.

  3. 3. A steady current of 10 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    1050 C

    Charge Q = current × time = 10 A × 105 s = 1050 C.

  4. 4. A steady current of 1 A flows through a lamp for 67 s. Calculate the total electric charge transferred using Q = It.

    67 C

    Charge Q = current × time = 1 A × 67 s = 67 C.

  5. 5. A steady current of 13 A flows through a lamp for 81 s. Calculate the total electric charge transferred using Q = It.

    1053 C

    Charge Q = current × time = 13 A × 81 s = 1053 C.

  6. 6. A steady current of 8 A flows through a lamp for 106 s. Calculate the total electric charge transferred using Q = It.

    848 C

    Charge Q = current × time = 8 A × 106 s = 848 C.

  7. 7. A steady current of 9 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    234 C

    Charge Q = current × time = 9 A × 26 s = 234 C.

  8. 8. A steady current of 15 A flows through a lamp for 16 s. Calculate the total electric charge transferred using Q = It.

    240 C

    Charge Q = current × time = 15 A × 16 s = 240 C.

  9. 9. A steady current of 13 A flows through a lamp for 22 s. Calculate the total electric charge transferred using Q = It.

    286 C

    Charge Q = current × time = 13 A × 22 s = 286 C.

  10. 10. A steady current of 5 A flows through a lamp for 35 s. Calculate the total electric charge transferred using Q = It.

    175 C

    Charge Q = current × time = 5 A × 35 s = 175 C.

  11. 11. A steady current of 4 A flows through a lamp for 92 s. Calculate the total electric charge transferred using Q = It.

    368 C

    Charge Q = current × time = 4 A × 92 s = 368 C.

  12. 12. A steady current of 2 A flows through a lamp for 88 s. Calculate the total electric charge transferred using Q = It.

    176 C

    Charge Q = current × time = 2 A × 88 s = 176 C.

12 questions · Seed 42 · 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 4 A flows through a lamp for 31 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 31 s

  2. 2. A steady current of 12 A flows through a lamp for 74 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 74 s

  3. 3. A steady current of 10 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 10 A · t = 105 s

  4. 4. A steady current of 1 A flows through a lamp for 67 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 1 A · t = 67 s

  5. 5. A steady current of 13 A flows through a lamp for 81 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 81 s

  6. 6. A steady current of 8 A flows through a lamp for 106 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 8 A · t = 106 s

  7. 7. A steady current of 9 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 9 A · t = 26 s

  8. 8. A steady current of 15 A flows through a lamp for 16 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 16 s

  9. 9. A steady current of 13 A flows through a lamp for 22 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 22 s

  10. 10. A steady current of 5 A flows through a lamp for 35 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 5 A · t = 35 s

  11. 11. A steady current of 4 A flows through a lamp for 92 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 92 s

  12. 12. A steady current of 2 A flows through a lamp for 88 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 88 s
12 questions · Seed 42 · 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 4 A flows through a lamp for 31 s. Calculate the total electric charge transferred using Q = It.

    124 C

    Charge Q = current × time = 4 A × 31 s = 124 C.

  2. 2. A steady current of 12 A flows through a lamp for 74 s. Calculate the total electric charge transferred using Q = It.

    888 C

    Charge Q = current × time = 12 A × 74 s = 888 C.

  3. 3. A steady current of 10 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    1050 C

    Charge Q = current × time = 10 A × 105 s = 1050 C.

  4. 4. A steady current of 1 A flows through a lamp for 67 s. Calculate the total electric charge transferred using Q = It.

    67 C

    Charge Q = current × time = 1 A × 67 s = 67 C.

  5. 5. A steady current of 13 A flows through a lamp for 81 s. Calculate the total electric charge transferred using Q = It.

    1053 C

    Charge Q = current × time = 13 A × 81 s = 1053 C.

  6. 6. A steady current of 8 A flows through a lamp for 106 s. Calculate the total electric charge transferred using Q = It.

    848 C

    Charge Q = current × time = 8 A × 106 s = 848 C.

  7. 7. A steady current of 9 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    234 C

    Charge Q = current × time = 9 A × 26 s = 234 C.

  8. 8. A steady current of 15 A flows through a lamp for 16 s. Calculate the total electric charge transferred using Q = It.

    240 C

    Charge Q = current × time = 15 A × 16 s = 240 C.

  9. 9. A steady current of 13 A flows through a lamp for 22 s. Calculate the total electric charge transferred using Q = It.

    286 C

    Charge Q = current × time = 13 A × 22 s = 286 C.

  10. 10. A steady current of 5 A flows through a lamp for 35 s. Calculate the total electric charge transferred using Q = It.

    175 C

    Charge Q = current × time = 5 A × 35 s = 175 C.

  11. 11. A steady current of 4 A flows through a lamp for 92 s. Calculate the total electric charge transferred using Q = It.

    368 C

    Charge Q = current × time = 4 A × 92 s = 368 C.

  12. 12. A steady current of 2 A flows through a lamp for 88 s. Calculate the total electric charge transferred using Q = It.

    176 C

    Charge Q = current × time = 2 A × 88 s = 176 C.

12 questions · Seed 42 · Age guidance, not curriculum certification