Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 404 · 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.True or false: “the output is stronger” happens when a small gear drives a big one. (a) False (b) True
2. 2.⚙️ A 12-tooth driver gear turns a 10-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) at the same speed (c) slower
3. 3.⚙️ Two gears are meshed together. How do they turn? (a) in opposite directions (b) one up, one down (c) they do not turn (d) the same direction
4. 4.True or false: “good for a slow crane” happens when a big gear drives a small one. (a) False (b) True
5. 5.⚙️ 4 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 4 turn? (a) anticlockwise (b) clockwise
6. 6.⚙️ Which gear set-up gives this: “the output turns faster”? (a) small drives big (b) big drives small
7. 7.⚙️ 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
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 16-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) faster (c) slower
10. 10.⚙️ Which gear set-up gives this: “good for a racing toy”? (a) small drives big (b) big drives small
11. 11.⚙️ Pulley A turns clockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
12. 12.⚙️ 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
13. 13.⚙️ Which gear set-up gives this: “the output is stronger”? (a) small drives big (b) big drives small
14. 14.True or false: “the output is weaker” happens when a small gear drives a big one. (a) True (b) False
15. 15.⚙️ Which gear set-up gives this: “good for lifting loads”? (a) small drives big (b) big drives small
16. 16.⚙️ 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
17. 17.True or false: “the output is stronger” happens when a big gear drives a small one. (a) False (b) True
18. 18.⚙️ 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
19. 19.⚙️ A 15-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
20. 20.True or false: “the output is weaker” happens when a big gear drives a small one. (a) True (b) False
21. 21.⚙️ A 15-tooth driver gear turns an 8-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) slower (c) at the same speed
22. 22.⚙️ 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
23. 23.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) small drives big (b) big drives small
24. 24.⚙️ 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
25. 25.True or false: “good for a slow crane” happens when a small gear drives a big one. (a) True (b) False
26. 26.⚙️ Which gear set-up gives this: “the output is weaker”? (a) big drives small (b) small drives big
27. 27.True or false: “good for a fast fan” happens when a small gear drives a big one. (a) True (b) False
28. 28.True or false: “the output turns faster” happens when a big gear drives a small one. (a) True (b) False
29. 29.⚙️ The gear fixed to the motor is called the … (a) tyre (b) driver gear (c) driven gear (d) idler gear
30. 30.⚙️ Which gear set-up gives this: “the output turns slower”? (a) big drives small (b) small drives big
31. 31.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) big drives small (b) small drives big
32. 32.⚙️ A 30-tooth driver gear turns a 10-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) at the same speed (c) faster
33. 33.⚙️ A 40-tooth driver gear turns a 15-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) at the same speed (c) slower
34. 34.True or false: “good for a racing toy” happens when a big gear drives a small one. (a) True (b) False
35. 35.⚙️ A small gear drives a big gear. The big gear turns … (a) not at all (b) at the same speed (c) slower but stronger (d) faster and weaker
36. 36.⚙️ What are the bumps round the edge of a gear called? (a) tyres (b) pins (c) spokes (d) teeth
37. 37.⚙️ A 24-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
38. 38.⚙️ 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
39. 39.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) clockwise (b) anticlockwise
40. 40.⚙️ 7 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 7 turn? (a) clockwise (b) anticlockwise

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