Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 234 · 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 stronger”? (a) small drives big (b) big drives small
2. 2.⚙️ 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
3. 3.⚙️ A 30-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
4. 4.⚙️ Which gear set-up gives this: “the output turns slower”? (a) small drives big (b) big drives small
5. 5.⚙️ A big gear drives a small gear. The small gear turns … (a) faster but weaker (b) not at all (c) slower but stronger (d) at the same speed
6. 6.True or false: “the output is weaker” happens when a small gear drives a big one. (a) True (b) False
7. 7.⚙️ Two gears are meshed together. How do they turn? (a) they do not turn (b) one up, one down (c) in opposite directions (d) the same direction
8. 8.True or false: “the output is weaker” happens when a big gear drives a small one. (a) False (b) True
9. 9.⚙️ 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
10. 10.⚙️ Which gear set-up gives this: “the output turns faster”? (a) small drives big (b) big drives small
11. 11.⚙️ Which gear set-up gives this: “good for lifting loads”? (a) big drives small (b) small drives big
12. 12.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) big drives small (b) small drives big
13. 13.⚙️ 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
14. 14.⚙️ 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
15. 15.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) small drives big (b) big drives small
16. 16.True or false: “good for a fast fan” happens when a small gear drives a big one. (a) False (b) True
17. 17.True or false: “the output is stronger” happens when a big gear drives a small one. (a) False (b) True
18. 18.⚙️ An 8-tooth driver gear turns a 15-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) faster (c) at the same speed
19. 19.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
20. 20.⚙️ 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
21. 21.True or false: “the output turns faster” happens when a small gear drives a big one. (a) False (b) True
22. 22.⚙️ A 12-tooth driver gear turns a 40-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) faster (c) at the same speed
23. 23.⚙️ A 12-tooth driver gear turns a 15-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) at the same speed (c) faster
24. 24.⚙️ Which gear set-up gives this: “the output is weaker”? (a) small drives big (b) big drives small
25. 25.⚙️ 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
26. 26.True or false: “good for a slow crane” happens when a small gear drives a big one. (a) False (b) True
27. 27.⚙️ A 24-tooth driver gear turns a 24-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) at the same speed (c) faster
28. 28.⚙️ An 8-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
29. 29.⚙️ 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
30. 30.⚙️ A 20-tooth driver gear turns a 12-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) at the same speed (c) slower
31. 31.⚙️ What are the bumps round the edge of a gear called? (a) teeth (b) pins (c) spokes (d) tyres
32. 32.⚙️ A small gear drives a big gear. The big gear turns … (a) faster and weaker (b) at the same speed (c) not at all (d) slower but stronger
33. 33.⚙️ A 15-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) slower (c) faster
34. 34.True or false: “good for a racing toy” happens when a big gear drives a small one. (a) False (b) True
35. 35.⚙️ A 24-tooth driver gear turns an 8-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) faster (c) at the same speed
36. 36.⚙️ The gear fixed to the motor is called the … (a) driver gear (b) idler gear (c) tyre (d) driven gear
37. 37.True or false: “the output turns slower” happens when a big gear drives a small one. (a) True (b) False
38. 38.⚙️ 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
39. 39.⚙️ A 20-tooth driver gear turns a 40-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) at the same speed (c) slower
40. 40.⚙️ 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

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