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Robotics Worksheet: Robot Batteries

Robotics lesson 4: Power for robots · Set 967 · 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 8 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  2. 2.🔋 What powers most moving robots? (a) a candle (b) a tiny magnet (c) a water tank (d) a rechargeable battery
  3. 3.🔋 A robot uses 20% of its battery every 5 minutes. How many minutes does a full battery (100%) last?
  4. 4.🔋 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%?
  5. 5.🔋 What does a robot vacuum do when its battery is low? (a) keeps going for ever (b) turns into a car (c) goes back to its dock (d) explodes
  6. 6.🔋 A robot’s battery is at 75%. Each lap of the track uses 5%. How many laps can it do before the battery reaches 0%?
  7. 7.🔋 A robot’s battery is at 40% and charging adds 10% every 10 minutes. How many minutes until it is full (100%)?
  8. 8.🔋 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%?
  9. 9.🔋 A robot’s battery is at 90%. Each lap of the track uses 5%. How many laps can it do before the battery reaches 0%?
  10. 10.🔋 A robot’s battery holds 1200 mAh and the robot uses 200 mA. For how many hours can it run?
  11. 11.🔋 A robot runs on 2 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  12. 12.🔋 A robot’s battery holds 6000 mAh and the robot uses 1000 mA. For how many hours can it run?
  13. 13.🔋 A robot’s battery is at 60%. Each lap of the track uses 20%. How many laps can it do before the battery reaches 0%?
  14. 14.🔋 A robot’s battery is at 40%. Each lap of the track uses 5%. How many laps can it do before the battery reaches 0%?
  15. 15.🔋 A robot’s battery holds 1000 mAh and the robot uses 1000 mA. For how many hours can it run?
  16. 16.🔋 A robot’s battery is at 60% and charging adds 20% every 10 minutes. How many minutes until it is full (100%)?
  17. 17.🔋 A robot’s battery is at 35% and charging adds 5% every 10 minutes. How many minutes until it is full (100%)?
  18. 18.🔋 A robot runs on 7 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  19. 19.🔋 A robot’s battery holds 4000 mAh and the robot uses 1000 mA. For how many hours can it run?
  20. 20.🔋 A robot uses 4% of its battery every 2 minutes. How many minutes does a full battery (100%) last?
  21. 21.🔋 A robot uses 25% of its battery every 2 minutes. How many minutes does a full battery (100%) last?
  22. 22.🔋 A robot’s battery is at 70%. Each lap of the track uses 10%. How many laps can it do before the battery reaches 0%?
  23. 23.🔋 A robot runs on 3 cells of 1.5 V joined in series. What is the total voltage (in volts)? =
  24. 24.🔋 A robot arm bolted to a factory floor usually gets its power from … (a) a coin cell (b) a power cable (c) a solar panel (d) a wind-up key
  25. 25.🔋 A robot’s battery is at 10%. Each lap of the track uses 5%. How many laps can it do before the battery reaches 0%?
  26. 26.🔋 A robot uses 25% of its battery every 3 minutes. How many minutes does a full battery (100%) last?
  27. 27.🔋 A robot uses 2% of its battery every 1 minute. How many minutes does a full battery (100%) last?
  28. 28.🔋 What should you do with a swollen or damaged robot battery? (a) squeeze it flat (b) throw it in a fire (c) give it to an adult (d) charge it again
  29. 29.🔋 A robot’s battery is at 60% and charging adds 10% every 10 minutes. How many minutes until it is full (100%)?
  30. 30.🔋 A robot’s battery holds 600 mAh and the robot uses 100 mA. For how many hours can it run?
  31. 31.🔋 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%?
  32. 32.🔋 A robot’s battery holds 100 mAh and the robot uses 100 mA. For how many hours can it run?
  33. 33.🔋 A robot’s battery is at 0% and charging adds 20% every 10 minutes. How many minutes until it is full (100%)?
  34. 34.🔋 A robot’s battery is at 30%. Each lap of the track uses 10%. How many laps can it do before the battery reaches 0%?
  35. 35.🔋 A robot’s battery is at 50%. Each lap of the track uses 10%. How many laps can it do before the battery reaches 0%?
  36. 36.🔋 A robot’s battery is at 0% and charging adds 5% every 10 minutes. How many minutes until it is full (100%)?
  37. 37.🔋 A robot’s battery is at 50%. Each lap of the track uses 25%. How many laps can it do before the battery reaches 0%?
  38. 38.🔋 A robot’s battery is at 40% and charging adds 20% every 10 minutes. How many minutes until it is full (100%)?
  39. 39.🔋 A robot’s battery is at 25% and charging adds 25% every 10 minutes. How many minutes until it is full (100%)?
  40. 40.🔋 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%?

Answer key

  1. 12
  2. a rechargeable battery
  3. 25
  4. 4
  5. goes back to its dock
  6. 15
  7. 60
  8. 2
  9. 18
  10. 6
  11. 3
  12. 6
  13. 3
  14. 8
  15. 1
  16. 20
  17. 130
  18. 10.5
  19. 4
  20. 50
  21. 8
  22. 7
  23. 4.5
  24. a power cable
  25. 2
  26. 12
  27. 50
  28. give it to an adult
  29. 40
  30. 6
  31. 6
  32. 1
  33. 50
  34. 3
  35. 5
  36. 200
  37. 2
  38. 30
  39. 30
  40. 2

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