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Robotics Worksheet: Robot Batteries

Robotics lesson 4: Power for robots · Set 10 · 40 questions
TalentJR

Robot tip (Holds ÷ uses): Hours = capacity in mAh ÷ current in mA (2000 mAh ÷ 500 mA = 4 hours). Percent: blocks = 100% ÷ % used per block; time = blocks × minutes per block. Cells in series add up: 4 cells of 1.5 V give 6 V.

NameDateTime takenScore ___ / 40
  1. 1.🔋 A robot runs on 7 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  2. 2.🔋 A robot uses 5% of its battery every 1 minute. How many minutes does a full battery (100%) last?
  3. 3.🔋 A robot runs on 8 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  4. 4.🔋 What should you do with a swollen or damaged robot battery? (a) squeeze it flat (b) charge it again (c) throw it in a fire (d) give it to an adult
  5. 5.🔋 A robot’s battery is at 40%. Each lap of the track uses 20%. How many laps can it do before the battery reaches 0%?
  6. 6.🔋 A robot’s battery holds 8000 mAh and the robot uses 1000 mA. For how many hours can it run?
  7. 7.🔋 What powers most moving robots? (a) a tiny magnet (b) a water tank (c) a candle (d) a rechargeable battery
  8. 8.🔋 A robot uses 10% of its battery every 6 minutes. How many minutes does a full battery (100%) last?
  9. 9.🔋 A robot’s battery is at 60% and charging adds 10% every 10 minutes. How many minutes until it is full (100%)?
  10. 10.🔋 A robot’s battery is at 65%. Each lap of the track uses 5%. How many laps can it do before the battery reaches 0%?
  11. 11.🔋 A robot arm bolted to a factory floor usually gets its power from … (a) a wind-up key (b) a power cable (c) a coin cell (d) a solar panel
  12. 12.🔋 A robot runs on 4 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  13. 13.🔋 A robot’s battery holds 200 mAh and the robot uses 200 mA. For how many hours can it run?
  14. 14.🔋 A robot uses 2% of its battery every 3 minutes. How many minutes does a full battery (100%) last?
  15. 15.🔋 A robot uses 5% of its battery every 5 minutes. How many minutes does a full battery (100%) last?
  16. 16.🔋 A robot uses 20% of its battery every 4 minutes. How many minutes does a full battery (100%) last?
  17. 17.🔋 A robot uses 10% of its battery every 5 minutes. How many minutes does a full battery (100%) last?
  18. 18.🔋 A robot’s battery holds 1500 mAh and the robot uses 500 mA. For how many hours can it run?
  19. 19.🔋 A robot uses 25% of its battery every 5 minutes. How many minutes does a full battery (100%) last?
  20. 20.🔋 Many robots on far-away planets get energy from … (a) shop batteries (b) sunlight (solar panels) (c) wind-up keys (d) petrol pumps
  21. 21.🔋 A robot runs on 6 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  22. 22.🔋 What does a robot vacuum do when its battery is low? (a) turns into a car (b) goes back to its dock (c) explodes (d) keeps going for ever
  23. 23.🔋 A robot’s battery holds 100 mAh and the robot uses 100 mA. For how many hours can it run?
  24. 24.🔋 A robot’s battery is at 0% and charging adds 25% every 10 minutes. How many minutes until it is full (100%)?
  25. 25.🔋 A robot uses 4% of its battery every 6 minutes. How many minutes does a full battery (100%) last?
  26. 26.🔋 A robot’s battery holds 1500 mAh and the robot uses 250 mA. For how many hours can it run?
  27. 27.🔋 A robot’s battery holds 800 mAh and the robot uses 100 mA. For how many hours can it run?
  28. 28.🔋 A robot runs on 3 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  29. 29.🔋 A robot runs on 5 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  30. 30.🔋 A robot’s battery is at 10% and charging adds 5% every 10 minutes. How many minutes until it is full (100%)?
  31. 31.🔋 A robot’s battery holds 6000 mAh and the robot uses 1000 mA. For how many hours can it run?
  32. 32.🔋 A robot’s battery is at 100%. Each lap of the track uses 25%. How many laps can it do before the battery reaches 0%?
  33. 33.🔋 A robot’s battery is at 85%. Each lap of the track uses 5%. How many laps can it do before the battery reaches 0%?
  34. 34.🔋 A robot uses 2% of its battery every 5 minutes. How many minutes does a full battery (100%) last?
  35. 35.🔋 A robot’s battery holds 1600 mAh and the robot uses 200 mA. For how many hours can it run?
  36. 36.🔋 A robot uses 20% of its battery every 3 minutes. How many minutes does a full battery (100%) last?
  37. 37.🔋 A robot’s battery is at 20%. Each lap of the track uses 10%. How many laps can it do before the battery reaches 0%?
  38. 38.🔋 A robot uses 5% of its battery every 4 minutes. How many minutes does a full battery (100%) last?
  39. 39.🔋 A robot uses 4% of its battery every 1 minute. How many minutes does a full battery (100%) last?
  40. 40.🔋 A robot’s battery holds 1000 mAh and the robot uses 250 mA. For how many hours can it run?

Answer key

  1. 10.5
  2. 20
  3. 12
  4. give it to an adult
  5. 2
  6. 8
  7. a rechargeable battery
  8. 60
  9. 40
  10. 13
  11. a power cable
  12. 6
  13. 1
  14. 150
  15. 100
  16. 20
  17. 50
  18. 3
  19. 20
  20. sunlight (solar panels)
  21. 9
  22. goes back to its dock
  23. 1
  24. 40
  25. 150
  26. 6
  27. 8
  28. 4.5
  29. 7.5
  30. 180
  31. 6
  32. 4
  33. 17
  34. 250
  35. 8
  36. 15
  37. 2
  38. 80
  39. 25
  40. 4

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