Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 230 · 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: “good for lifting loads”? (a) small drives big (b) big drives small
2. 2.⚙️ 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
3. 3.True or false: “good for a fast fan” happens when a big gear drives a small one. (a) False (b) True
4. 4.⚙️ A small gear drives a big gear. The big gear turns … (a) faster and weaker (b) not at all (c) slower but stronger (d) at the same speed
5. 5.True or false: “the output turns faster” happens when a small gear drives a big one. (a) True (b) False
6. 6.⚙️ 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
7. 7.True or false: “the output is weaker” happens when a small gear drives a big one. (a) False (b) True
8. 8.⚙️ 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
9. 9.⚙️ 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
10. 10.⚙️ What are the bumps round the edge of a gear called? (a) pins (b) teeth (c) spokes (d) tyres
11. 11.⚙️ 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
12. 12.⚙️ 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
13. 13.True or false: “good for a racing toy” happens when a big gear drives a small one. (a) True (b) False
14. 14.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) small drives big (b) big drives small
15. 15.⚙️ A 40-tooth driver gear turns a 30-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) at the same speed (b) slower (c) faster
16. 16.⚙️ A big gear drives a small gear. The small gear turns … (a) slower but stronger (b) not at all (c) faster but weaker (d) at the same speed
17. 17.⚙️ Which gear set-up gives this: “good for a racing toy”? (a) small drives big (b) big drives small
18. 18.True or false: “the output turns slower” happens when a small gear drives a big one. (a) True (b) False
19. 19.⚙️ Which gear set-up gives this: “the output turns faster”? (a) small drives big (b) big drives small
20. 20.⚙️ A 16-tooth driver gear turns a 10-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) at the same speed (c) faster
21. 21.⚙️ The gear fixed to the motor is called the … (a) driven gear (b) idler gear (c) tyre (d) driver gear
22. 22.⚙️ An 8-tooth driver gear turns a 40-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) at the same speed (b) faster (c) slower
23. 23.⚙️ 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
24. 24.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) small drives big (b) big drives small
25. 25.⚙️ 4 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 4 turn? (a) clockwise (b) anticlockwise
26. 26.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
27. 27.⚙️ 5 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 5 turn? (a) clockwise (b) anticlockwise
28. 28.⚙️ A 36-tooth driver gear turns a 12-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) at the same speed (b) faster (c) slower
29. 29.True or false: “good for a slow crane” happens when a small gear drives a big one. (a) True (b) False
30. 30.⚙️ Which gear set-up gives this: “the output is weaker”? (a) small drives big (b) big drives small
31. 31.True or false: “good for a racing toy” happens when a small gear drives a big one. (a) False (b) True
32. 32.⚙️ Two gears are meshed together. How do they turn? (a) the same direction (b) one up, one down (c) in opposite directions (d) they do not turn
33. 33.True or false: “good for a fast fan” happens when a small gear drives a big one. (a) False (b) True
34. 34.⚙️ 2 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 2 turn? (a) anticlockwise (b) clockwise
35. 35.⚙️ 4 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 4 turn? (a) anticlockwise (b) clockwise
36. 36.True or false: “good for lifting loads” happens when a small gear drives a big one. (a) True (b) False
37. 37.⚙️ 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
38. 38.True or false: “the output turns slower” happens when a big gear drives a small one. (a) False (b) True
39. 39.⚙️ A 15-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) faster (c) slower
40. 40.True or false: “the output turns faster” happens when a big gear drives a small one. (a) True (b) False

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