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Robotics Worksheet: Robot Batteries

Robotics lesson 4: Power for robots · Set 155 · 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.🔋 Many robots on far-away planets get energy from … (a) petrol pumps (b) sunlight (solar panels) (c) shop batteries (d) wind-up keys
  2. 2.🔋 What should you do with a swollen or damaged robot battery? (a) squeeze it flat (b) give it to an adult (c) throw it in a fire (d) charge it again
  3. 3.🔋 A robot runs on 5 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  4. 4.🔋 Battery capacity (how much it holds) is often written in … (a) mAh (b) km (c) °C (d) kg
  5. 5.🔋 A robot runs on 4 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  6. 6.🔋 A robot’s battery holds 2000 mAh and the robot uses 1000 mA. For how many hours can it run?
  7. 7.🔋 A robot runs on 3 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  8. 8.🔋 A robot’s battery is at 0% and charging adds 5% every 10 minutes. How many minutes until it is full (100%)?
  9. 9.🔋 A robot’s battery holds 1000 mAh and the robot uses 200 mA. For how many hours can it run?
  10. 10.🔋 What powers most moving robots? (a) a tiny magnet (b) a candle (c) a water tank (d) a rechargeable battery
  11. 11.🔋 A robot’s battery is at 75% and charging adds 25% every 10 minutes. How many minutes until it is full (100%)?
  12. 12.🔋 A robot’s battery holds 3000 mAh and the robot uses 500 mA. For how many hours can it run?
  13. 13.🔋 A robot’s battery is at 50% and charging adds 10% every 10 minutes. How many minutes until it is full (100%)?
  14. 14.🔋 A robot’s battery holds 400 mAh and the robot uses 400 mA. For how many hours can it run?
  15. 15.🔋 A robot uses 2% of its battery every 2 minutes. How many minutes does a full battery (100%) last?
  16. 16.🔋 A robot’s battery holds 8000 mAh and the robot uses 1000 mA. For how many hours can it run?
  17. 17.🔋 A robot runs on 6 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  18. 18.🔋 A robot uses 25% of its battery every 5 minutes. How many minutes does a full battery (100%) last?
  19. 19.🔋 A robot’s battery is at 10% and charging adds 5% every 10 minutes. How many minutes until it is full (100%)?
  20. 20.🔋 A robot uses 25% of its battery every 3 minutes. How many minutes does a full battery (100%) last?
  21. 21.🔋 A robot uses 2% of its battery every 3 minutes. How many minutes does a full battery (100%) last?
  22. 22.🔋 A robot’s battery holds 1600 mAh and the robot uses 400 mA. For how many hours can it run?
  23. 23.🔋 A robot’s battery holds 700 mAh and the robot uses 100 mA. For how many hours can it run?
  24. 24.🔋 A robot’s battery is at 80% and charging adds 5% every 10 minutes. How many minutes until it is full (100%)?
  25. 25.🔋 A robot’s battery holds 1250 mAh and the robot uses 250 mA. For how many hours can it run?
  26. 26.🔋 A robot arm bolted to a factory floor usually gets its power from … (a) a power cable (b) a coin cell (c) a solar panel (d) a wind-up key
  27. 27.🔋 A robot’s battery is at 55% and charging adds 5% every 10 minutes. How many minutes until it is full (100%)?
  28. 28.🔋 A robot’s battery is at 25% and charging adds 25% every 10 minutes. How many minutes until it is full (100%)?
  29. 29.🔋 A robot runs on 2 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  30. 30.🔋 A robot’s battery is at 30%. Each lap of the track uses 5%. How many laps can it do before the battery reaches 0%?
  31. 31.🔋 A robot’s battery holds 4000 mAh and the robot uses 500 mA. For how many hours can it run?
  32. 32.🔋 A robot uses 20% of its battery every 2 minutes. How many minutes does a full battery (100%) last?
  33. 33.🔋 A robot’s battery holds 2800 mAh and the robot uses 400 mA. For how many hours can it run?
  34. 34.🔋 A robot’s battery is at 60%. Each lap of the track uses 5%. How many laps can it do before the battery reaches 0%?
  35. 35.🔋 A robot’s battery holds 5000 mAh and the robot uses 1000 mA. For how many hours can it run?
  36. 36.🔋 A robot runs on 7 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  37. 37.🔋 A robot’s battery holds 7000 mAh and the robot uses 1000 mA. For how many hours can it run?
  38. 38.🔋 A robot’s battery holds 500 mAh and the robot uses 250 mA. For how many hours can it run?
  39. 39.🔋 A robot’s battery holds 2400 mAh and the robot uses 400 mA. For how many hours can it run?
  40. 40.🔋 A robot uses 2% of its battery every 4 minutes. How many minutes does a full battery (100%) last?

Answer key

  1. sunlight (solar panels)
  2. give it to an adult
  3. 7.5
  4. mAh
  5. 6
  6. 2
  7. 4.5
  8. 200
  9. 5
  10. a rechargeable battery
  11. 10
  12. 6
  13. 50
  14. 1
  15. 100
  16. 8
  17. 9
  18. 20
  19. 180
  20. 12
  21. 150
  22. 4
  23. 7
  24. 40
  25. 5
  26. a power cable
  27. 90
  28. 30
  29. 3
  30. 6
  31. 8
  32. 10
  33. 7
  34. 12
  35. 5
  36. 10.5
  37. 7
  38. 2
  39. 6
  40. 200

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