Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 303 · 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 is weaker”? (a) big drives small (b) small drives big
2. 2.True or false: “good for lifting loads” happens when a big gear drives a small one. (a) False (b) True
3. 3.⚙️ 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
4. 4.True or false: “the output is stronger” happens when a big gear drives a small one. (a) False (b) True
5. 5.True or false: “the output turns slower” happens when a small gear drives a big one. (a) False (b) True
6. 6.⚙️ Which gear set-up gives this: “the output turns slower”? (a) small drives big (b) big drives small
7. 7.True or false: “good for a racing toy” happens when a big gear drives a small one. (a) False (b) True
8. 8.⚙️ 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
9. 9.⚙️ The gear fixed to the motor is called the … (a) tyre (b) driven gear (c) driver gear (d) idler gear
10. 10.True or false: “good for lifting loads” happens when a small gear drives a big one. (a) False (b) True
11. 11.⚙️ Which gear set-up gives this: “good for a racing toy”? (a) small drives big (b) big drives small
12. 12.⚙️ Pulley A turns clockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) clockwise (b) anticlockwise
13. 13.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) big drives small (b) small drives big
14. 14.⚙️ What are the bumps round the edge of a gear called? (a) teeth (b) pins (c) tyres (d) spokes
15. 15.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
16. 16.True or false: “the output turns slower” happens when a big gear drives a small one. (a) False (b) True
17. 17.⚙️ 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
18. 18.⚙️ 6 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 6 turn? (a) anticlockwise (b) clockwise
19. 19.⚙️ Two gears are meshed together. How do they turn? (a) they do not turn (b) in opposite directions (c) the same direction (d) one up, one down
20. 20.⚙️ 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
21. 21.⚙️ Which gear set-up gives this: “the output turns faster”? (a) big drives small (b) small drives big
22. 22.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) small drives big (b) big drives small
23. 23.⚙️ A small gear drives a big gear. The big gear turns … (a) at the same speed (b) not at all (c) slower but stronger (d) faster and weaker
24. 24.True or false: “good for a slow crane” happens when a big gear drives a small one. (a) True (b) False
25. 25.⚙️ A big gear drives a small gear. The small gear turns … (a) faster but weaker (b) not at all (c) at the same speed (d) slower but stronger
26. 26.True or false: “the output is stronger” happens when a small gear drives a big one. (a) False (b) True
27. 27.⚙️ Which gear set-up gives this: “the output is stronger”? (a) small drives big (b) big drives small
28. 28.⚙️ 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
29. 29.⚙️ 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
30. 30.⚙️ 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
31. 31.⚙️ 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
32. 32.⚙️ Which gear set-up gives this: “good for lifting loads”? (a) small drives big (b) big drives small
33. 33.⚙️ 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
34. 34.⚙️ 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
35. 35.⚙️ 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
36. 36.⚙️ A 12-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) slower (c) faster
37. 37.⚙️ A 24-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) slower (c) faster
38. 38.⚙️ An 8-tooth driver gear turns a 30-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) faster (c) at the same speed
39. 39.True or false: “the output is stronger” happens when a big gear drives a small one. (a) False (b) True
40. 40.True or false: “the output is weaker” 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