Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 78 · 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.⚙️ A big gear drives a small gear. The small gear turns … (a) slower but stronger (b) at the same speed (c) not at all (d) faster but weaker
2. 2.⚙️ Which gear set-up gives this: “the output turns faster”? (a) big drives small (b) small drives big
3. 3.⚙️ 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
4. 4.⚙️ Pulley A turns clockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) clockwise (b) anticlockwise
5. 5.⚙️ A 20-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) faster (c) slower
6. 6.True or false: “the output turns slower” happens when a small gear drives a big one. (a) False (b) True
7. 7.⚙️ The gear fixed to the motor is called the … (a) driven gear (b) driver gear (c) tyre (d) idler gear
8. 8.⚙️ Which gear set-up gives this: “the output turns slower”? (a) small drives big (b) big drives small
9. 9.⚙️ A 40-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
10. 10.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
11. 11.⚙️ Which gear set-up gives this: “the output is weaker”? (a) small drives big (b) big drives small
12. 12.⚙️ 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
13. 13.True or false: “the output is stronger” happens when a big gear drives a small one. (a) True (b) False
14. 14.True or false: “the output turns faster” happens when a big gear drives a small one. (a) True (b) False
15. 15.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) small drives big (b) big drives small
16. 16.⚙️ A 12-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
17. 17.⚙️ 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
18. 18.True or false: “good for lifting loads” happens when a small gear drives a big one. (a) True (b) False
19. 19.⚙️ A small gear drives a big gear. The big gear turns … (a) slower but stronger (b) at the same speed (c) not at all (d) faster and weaker
20. 20.⚙️ 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
21. 21.⚙️ A 16-tooth driver gear turns a 36-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) slower (c) at the same speed
22. 22.True or false: “good for a racing toy” happens when a big gear drives a small one. (a) False (b) True
23. 23.⚙️ 5 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 5 turn? (a) clockwise (b) anticlockwise
24. 24.⚙️ Which gear set-up gives this: “the output is stronger”? (a) small drives big (b) big drives small
25. 25.⚙️ Pulley A turns anticlockwise and drives pulley B with a crossed belt (it makes an X). Which way does pulley B turn? (a) anticlockwise (b) clockwise
26. 26.⚙️ 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
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 10-tooth driver gear turns a 36-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 big gear drives a small one. (a) False (b) True
31. 31.⚙️ A 10-tooth driver gear turns a 24-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) slower (c) at the same speed
32. 32.True or false: “good for a fast fan” happens when a small gear drives a big one. (a) False (b) True
33. 33.⚙️ 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
34. 34.True or false: “the output turns slower” happens when a big gear drives a small one. (a) False (b) True
35. 35.⚙️ Which gear set-up gives this: “good for lifting loads”? (a) small drives big (b) big drives small
36. 36.True or false: “good for a fast fan” happens when a big gear drives a small one. (a) True (b) False
37. 37.⚙️ A 20-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
38. 38.True or false: “the output turns faster” happens when a small gear drives a big one. (a) True (b) False
39. 39.⚙️ 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
40. 40.⚙️ A 36-tooth driver gear turns a 20-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) at the same speed (b) slower (c) faster

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