Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 694 · 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.⚙️ What are the bumps round the edge of a gear called? (a) pins (b) tyres (c) teeth (d) spokes
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 small driver gear (b) a big driver gear
3. 3.⚙️ The gear fixed to the motor is called the … (a) tyre (b) driver gear (c) driven gear (d) idler gear
4. 4.⚙️ A small gear drives a big gear. The big gear turns … (a) at the same speed (b) faster and weaker (c) slower but stronger (d) not at all
5. 5.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) small drives big (b) big drives small
6. 6.⚙️ 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
7. 7.True or false: “the output turns faster” happens when a big gear drives a small one. (a) True (b) False
8. 8.True or false: “the output turns slower” happens when a big gear drives a small one. (a) True (b) False
9. 9.⚙️ A 12-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
10. 10.⚙️ 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
11. 11.True or false: “the output is stronger” happens when a big gear drives a small one. (a) True (b) False
12. 12.True or false: “good for a racing toy” happens when a small gear drives a big one. (a) True (b) False
13. 13.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) clockwise (b) anticlockwise
14. 14.⚙️ A 20-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) faster (c) slower
15. 15.⚙️ 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
16. 16.True or false: “good for lifting loads” happens when a big gear drives a small one. (a) False (b) True
17. 17.⚙️ Which gear set-up gives this: “the output turns slower”? (a) big drives small (b) small drives big
18. 18.⚙️ A 16-tooth driver gear turns a 24-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) at the same speed (b) faster (c) slower
19. 19.⚙️ Which gear set-up gives this: “good for a racing toy”? (a) small drives big (b) big drives small
20. 20.True or false: “good for a fast fan” happens when a big gear drives a small one. (a) True (b) False
21. 21.⚙️ 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
22. 22.⚙️ 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
23. 23.⚙️ Which gear set-up gives this: “the output is stronger”? (a) big drives small (b) small drives big
24. 24.⚙️ A 10-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
25. 25.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) small drives big (b) big drives small
26. 26.True or false: “the output is stronger” happens when a small gear drives a big one. (a) False (b) True
27. 27.⚙️ A 15-tooth driver gear turns a 15-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) slower (c) at the same speed
28. 28.True or false: “the output is weaker” happens when a small gear drives a big one. (a) True (b) False
29. 29.⚙️ 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
30. 30.True or false: “good for a racing toy” happens when a big gear drives a small one. (a) True (b) False
31. 31.⚙️ A 40-tooth driver gear turns a 36-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) at the same speed (c) slower
32. 32.⚙️ 4 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 4 turn? (a) anticlockwise (b) clockwise
33. 33.⚙️ 7 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 7 turn? (a) clockwise (b) anticlockwise
34. 34.⚙️ Which gear set-up gives this: “good for lifting loads”? (a) big drives small (b) small drives big
35. 35.True or false: “the output is weaker” happens when a big gear drives a small one. (a) False (b) True
36. 36.⚙️ A 40-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
37. 37.⚙️ Pulley A turns clockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
38. 38.⚙️ Two gears are meshed together. How do they turn? (a) the same direction (b) they do not turn (c) one up, one down (d) in opposite directions
39. 39.True or false: “the output turns slower” happens when a small gear drives a big one. (a) False (b) True
40. 40.⚙️ Which gear set-up gives this: “the output turns faster”? (a) big drives small (b) small drives big

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