Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 869 · 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.⚙️ Which gear set-up gives this: “the output turns slower”? (a) big drives small (b) small drives big
2. 2.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) small drives big (b) big drives small
3. 3.⚙️ Which gear set-up gives this: “good for lifting loads”? (a) small drives big (b) big drives small
4. 4.⚙️ A big gear drives a small gear. The small gear turns … (a) at the same speed (b) slower but stronger (c) faster but weaker (d) not at all
5. 5.⚙️ 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
6. 6.⚙️ A small gear drives a big gear. The big gear turns … (a) not at all (b) faster and weaker (c) at the same speed (d) slower but stronger
7. 7.True or false: “good for lifting loads” happens when a small gear drives a big one. (a) False (b) True
8. 8.⚙️ Which gear set-up gives this: “good for a racing toy”? (a) small drives big (b) big drives small
9. 9.⚙️ A 10-tooth driver gear turns a 36-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) at the same speed (c) slower
10. 10.⚙️ Pulley A turns clockwise and drives pulley B with a crossed belt (it makes an X). Which way does pulley B turn? (a) anticlockwise (b) clockwise
11. 11.True or false: “the output is stronger” happens when a big gear drives a small one. (a) True (b) False
12. 12.⚙️ Which gear set-up gives this: “the output is weaker”? (a) big drives small (b) small drives big
13. 13.True or false: “good for lifting loads” happens when a big gear drives a small one. (a) False (b) True
14. 14.⚙️ 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
15. 15.⚙️ A 10-tooth driver gear turns a 15-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) at the same speed (b) faster (c) slower
16. 16.⚙️ A 16-tooth driver gear turns a 12-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) slower (c) at the same speed
17. 17.True or false: “the output turns slower” happens when a big gear drives a small one. (a) True (b) False
18. 18.⚙️ A 10-tooth driver gear turns a 10-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) at the same speed (b) slower (c) faster
19. 19.⚙️ 4 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 4 turn? (a) clockwise (b) anticlockwise
20. 20.True or false: “the output turns slower” happens when a small gear drives a big one. (a) False (b) True
21. 21.⚙️ Which gear set-up gives this: “the output is stronger”? (a) small drives big (b) big drives small
22. 22.⚙️ The gear fixed to the motor is called the … (a) idler gear (b) driven gear (c) driver gear (d) tyre
23. 23.⚙️ Two gears are meshed together. How do they turn? (a) they do not turn (b) in opposite directions (c) one up, one down (d) the same direction
24. 24.True or false: “the output is weaker” happens when a big gear drives a small one. (a) True (b) False
25. 25.⚙️ 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 small driver gear (b) a big driver gear
26. 26.⚙️ Which gear set-up gives this: “the output turns faster”? (a) big drives small (b) small drives big
27. 27.⚙️ Pulley A turns clockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
28. 28.⚙️ 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
29. 29.True or false: “good for a fast fan” happens when a small gear drives a big one. (a) True (b) False
30. 30.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) small drives big (b) big drives small
31. 31.⚙️ 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
32. 32.True or false: “good for a slow crane” happens when a big gear drives a small one. (a) False (b) True
33. 33.⚙️ Pulley A turns anticlockwise and drives pulley B with a crossed belt (it makes an X). Which way does pulley B turn? (a) clockwise (b) anticlockwise
34. 34.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
35. 35.True or false: “good for a slow crane” happens when a small gear drives a big one. (a) True (b) False
36. 36.⚙️ 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
37. 37.⚙️ 3 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 3 turn? (a) clockwise (b) anticlockwise
38. 38.⚙️ A 10-tooth driver gear turns a 16-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) slower (c) at the same speed
39. 39.True or false: “good for a racing toy” happens when a small gear drives a big one. (a) False (b) True
40. 40.⚙️ 2 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 2 turn? (a) clockwise (b) anticlockwise

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