Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 979 · 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.True or false: “the output is weaker” happens when a small gear drives a big one. (a) True (b) False
2. 2.⚙️ A big gear drives a small gear. The small gear turns … (a) at the same speed (b) faster but weaker (c) slower but stronger (d) not at all
3. 3.⚙️ Which gear set-up gives this: “the output is weaker”? (a) big drives small (b) small drives big
4. 4.⚙️ 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
5. 5.True or false: “good for a fast fan” happens when a big gear drives a small one. (a) False (b) True
6. 6.⚙️ Which gear set-up gives this: “good for lifting loads”? (a) big drives small (b) small drives big
7. 7.⚙️ Which gear set-up gives this: “the output turns faster”? (a) big drives small (b) small drives big
8. 8.⚙️ Pulley A turns clockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
9. 9.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) small drives big (b) big drives small
10. 10.⚙️ 6 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 6 turn? (a) clockwise (b) anticlockwise
11. 11.⚙️ Which gear set-up gives this: “the output turns slower”? (a) big drives small (b) small drives big
12. 12.⚙️ 2 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 2 turn? (a) anticlockwise (b) clockwise
13. 13.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) big drives small (b) small drives big
14. 14.True or false: “the output is weaker” happens when a big gear drives a small one. (a) True (b) False
15. 15.⚙️ 6 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 6 turn? (a) clockwise (b) anticlockwise
16. 16.⚙️ A 24-tooth driver gear turns an 8-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) at the same speed (b) faster (c) slower
17. 17.⚙️ A 36-tooth driver gear turns an 8-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) at the same speed (c) slower
18. 18.⚙️ A small gear drives a big gear. The big gear turns … (a) not at all (b) faster and weaker (c) slower but stronger (d) at the same speed
19. 19.⚙️ A 15-tooth driver gear turns a 20-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) at the same speed (c) slower
20. 20.True or false: “the output turns slower” happens when a small gear drives a big one. (a) False (b) True
21. 21.⚙️ 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
22. 22.⚙️ 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 small driver gear (b) a big driver gear
23. 23.⚙️ 7 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 7 turn? (a) clockwise (b) anticlockwise
24. 24.⚙️ 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
25. 25.⚙️ Two gears are meshed together. How do they turn? (a) one up, one down (b) the same direction (c) in opposite directions (d) they do not turn
26. 26.True or false: “good for a racing toy” happens when a small gear drives a big one. (a) True (b) False
27. 27.True or false: “good for a slow crane” happens when a big gear drives a small one. (a) False (b) True
28. 28.⚙️ Which gear set-up gives this: “good for a racing toy”? (a) small drives big (b) big drives small
29. 29.⚙️ A 20-tooth driver gear turns a 30-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) slower (c) at the same speed
30. 30.True or false: “good for lifting loads” happens when a small gear drives a big one. (a) True (b) False
31. 31.⚙️ A 10-tooth driver gear turns a 16-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) at the same speed (b) slower (c) faster
32. 32.⚙️ 3 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 3 turn? (a) clockwise (b) anticlockwise
33. 33.⚙️ Which gear set-up gives this: “the output is stronger”? (a) big drives small (b) small drives big
34. 34.⚙️ 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
35. 35.True or false: “good for a racing toy” happens when a big gear drives a small one. (a) False (b) True
36. 36.True or false: “good for a fast fan” happens when a small gear drives a big one. (a) False (b) True
37. 37.True or false: “good for a slow crane” happens when a small gear drives a big one. (a) True (b) False
38. 38.True or false: “the output is stronger” happens when a small gear drives a big one. (a) True (b) False
39. 39.True or false: “good for lifting loads” happens when a big gear drives a small one. (a) True (b) False
40. 40.⚙️ 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

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