Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 476 · 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 a fast fan”? (a) small drives big (b) big drives small
2. 2.⚙️ Two gears are meshed together. How do they turn? (a) in opposite directions (b) one up, one down (c) the same direction (d) they do not turn
3. 3.True or false: “the output turns faster” happens when a big gear drives a small one. (a) True (b) False
4. 4.⚙️ Pulley A turns clockwise and drives pulley B with a crossed belt (it makes an X). Which way does pulley B turn? (a) clockwise (b) anticlockwise
5. 5.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) small drives big (b) big drives small
6. 6.⚙️ 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
7. 7.⚙️ The gear fixed to the motor is called the … (a) driver gear (b) driven gear (c) idler gear (d) tyre
8. 8.⚙️ A 36-tooth driver gear turns a 12-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) at the same speed (c) faster
9. 9.⚙️ 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
10. 10.True or false: “good for lifting loads” happens when a big gear drives a small one. (a) False (b) True
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 small driver gear (b) a big driver gear
12. 12.⚙️ A small gear drives a big gear. The big gear turns … (a) slower but stronger (b) faster and weaker (c) at the same speed (d) not at all
13. 13.⚙️ 5 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 5 turn? (a) anticlockwise (b) clockwise
14. 14.⚙️ 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) slower (c) faster
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.⚙️ Which gear set-up gives this: “the output is weaker”? (a) big drives small (b) small drives big
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: “good for a slow crane” happens when a small gear drives a big one. (a) False (b) True
19. 19.True or false: “good for a racing toy” happens when a small gear drives a big one. (a) False (b) True
20. 20.⚙️ A big gear drives a small gear. The small gear turns … (a) not at all (b) at the same speed (c) slower but stronger (d) faster but weaker
21. 21.True or false: “the output turns slower” happens when a small gear drives a big one. (a) True (b) False
22. 22.⚙️ Which gear set-up gives this: “the output turns slower”? (a) small drives big (b) big drives small
23. 23.True or false: “the output is weaker” happens when a small gear drives a big one. (a) False (b) True
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.⚙️ A 10-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
26. 26.True or false: “good for a slow crane” happens when a big gear drives a small one. (a) True (b) False
27. 27.⚙️ Which gear set-up gives this: “the output is stronger”? (a) small drives big (b) big drives small
28. 28.⚙️ 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
29. 29.⚙️ A 20-tooth driver gear turns a 10-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) faster (c) at the same speed
30. 30.⚙️ Which gear set-up gives this: “the output turns faster”? (a) small drives big (b) big drives small
31. 31.⚙️ A 20-tooth driver gear turns an 8-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) at the same speed (c) faster
32. 32.⚙️ Which gear set-up gives this: “good for lifting loads”? (a) big drives small (b) small drives big
33. 33.⚙️ What are the bumps round the edge of a gear called? (a) teeth (b) tyres (c) pins (d) spokes
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 10-tooth driver gear turns a 12-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) faster (c) at the same speed
36. 36.True or false: “good for lifting loads” happens when a small gear drives a big one. (a) False (b) True
37. 37.True or false: “good for a fast fan” happens when a small gear drives a big one. (a) True (b) False
38. 38.⚙️ 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
39. 39.⚙️ A 10-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
40. 40.True or false: “the output is stronger” happens when a small gear drives a big one. (a) True (b) False

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