Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 182 · 40 questions

Robot tip (Trade speed for strength): Meshed gears turn opposite ways; in a row, odd-numbered gears turn like gear 1. Small drives big: slower, stronger. Big drives small: faster, weaker. The gear with fewer teeth turns faster. Open belt: same direction. Crossed belt: opposite direction.

1. 1.⚙️ Two gears are meshed together. How do they turn? (a) they do not turn (b) the same direction (c) one up, one down (d) in opposite directions
2. 2.True or false: “the output turns slower” happens when a big gear drives a small one. (a) False (b) True
3. 3.⚙️ 6 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 6 turn? (a) anticlockwise (b) clockwise
4. 4.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) big drives small (b) small drives big
5. 5.⚙️ Which gear set-up gives this: “good for lifting loads”? (a) big drives small (b) small drives big
6. 6.True or false: “good for lifting loads” happens when a big gear drives a small one. (a) False (b) True
7. 7.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) small drives big (b) big drives small
8. 8.⚙️ A big gear drives a small gear. The small gear turns … (a) at the same speed (b) not at all (c) slower but stronger (d) faster but weaker
9. 9.True or false: “good for a fast fan” happens when a small gear drives a big one. (a) True (b) False
10. 10.⚙️ Which gear set-up gives this: “good for a racing toy”? (a) big drives small (b) small drives big
11. 11.⚙️ Which gear set-up gives this: “the output is weaker”? (a) small drives big (b) big drives small
12. 12.⚙️ A 40-tooth driver gear turns a 40-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) faster (c) at the same speed
13. 13.⚙️ A small gear drives a big gear. The big gear turns … (a) at the same speed (b) slower but stronger (c) faster and weaker (d) not at all
14. 14.⚙️ Which gear set-up gives this: “the output is stronger”? (a) big drives small (b) small drives big
15. 15.⚙️ 2 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 2 turn? (a) clockwise (b) anticlockwise
16. 16.⚙️ A robot arm must lift a heavy load slowly. The motor’s driver gear meshes with a big gear. What kind of driver gear works best? (a) a big driver gear (b) a small driver gear
17. 17.True or false: “the output is stronger” happens when a small gear drives a big one. (a) False (b) True
18. 18.⚙️ 5 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 5 turn? (a) anticlockwise (b) clockwise
19. 19.⚙️ A 24-tooth driver gear turns a 16-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) at the same speed (c) faster
20. 20.⚙️ Pulley A turns clockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) clockwise (b) anticlockwise
21. 21.⚙️ 4 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 4 turn? (a) anticlockwise (b) clockwise
22. 22.True or false: “the output turns faster” happens when a small gear drives a big one. (a) True (b) False
23. 23.⚙️ 7 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 7 turn? (a) anticlockwise (b) clockwise
24. 24.⚙️ Which gear set-up gives this: “the output turns slower”? (a) small drives big (b) big drives small
25. 25.⚙️ 3 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 3 turn? (a) anticlockwise (b) clockwise
26. 26.⚙️ 3 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 3 turn? (a) anticlockwise (b) clockwise
27. 27.⚙️ Pulley A turns clockwise and drives pulley B with a crossed belt (it makes an X). Which way does pulley B turn? (a) clockwise (b) anticlockwise
28. 28.True or false: “good for a fast fan” happens when a big gear drives a small one. (a) True (b) False
29. 29.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) clockwise (b) anticlockwise
30. 30.True or false: “the output turns slower” happens when a small gear drives a big one. (a) True (b) False
31. 31.True or false: “the output is stronger” happens when a big gear drives a small one. (a) False (b) True
32. 32.⚙️ Which gear set-up gives this: “the output turns faster”? (a) big drives small (b) small drives big
33. 33.True or false: “good for a racing toy” happens when a big gear drives a small one. (a) True (b) False
34. 34.⚙️ 7 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 7 turn? (a) anticlockwise (b) clockwise
35. 35.True or false: “good for a racing toy” happens when a small gear drives a big one. (a) False (b) True
36. 36.⚙️ A 12-tooth driver gear turns an 8-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) at the same speed (c) faster
37. 37.True or false: “the output turns faster” happens when a big gear drives a small one. (a) True (b) False
38. 38.⚙️ The gear fixed to the motor is called the … (a) idler gear (b) driver gear (c) tyre (d) driven gear
39. 39.⚙️ A robot fan must spin very fast. The motor’s driver gear meshes with a small gear. What kind of driver gear works best? (a) a big driver gear (b) a small driver gear
40. 40.True or false: “good for lifting loads” happens when a small gear drives a big one. (a) True (b) False

Free robotics lessons, practice and worksheets at talentjr.in/robotics-for-kids