Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 669 · 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.⚙️ The gear fixed to the motor is called the … (a) tyre (b) idler gear (c) driver gear (d) driven gear
2. 2.True or false: “good for lifting loads” happens when a big gear drives a small one. (a) True (b) False
3. 3.True or false: “the output is stronger” happens when a big gear drives a small one. (a) False (b) True
4. 4.⚙️ A big gear drives a small gear. The small gear turns … (a) not at all (b) slower but stronger (c) at the same speed (d) faster but weaker
5. 5.⚙️ Which gear set-up gives this: “the output turns slower”? (a) big drives small (b) small drives big
6. 6.⚙️ 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
7. 7.⚙️ Two gears are meshed together. How do they turn? (a) they do not turn (b) the same direction (c) one up, one down (d) in opposite directions
8. 8.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) big drives small (b) small drives big
9. 9.⚙️ 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
10. 10.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) small drives big (b) big drives small
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 big driver gear (b) a small driver gear
12. 12.True or false: “good for a slow crane” happens when a small gear drives a big one. (a) False (b) True
13. 13.⚙️ 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
14. 14.⚙️ A 24-tooth driver gear turns a 20-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) faster (c) at the same speed
15. 15.⚙️ Which gear set-up gives this: “the output turns faster”? (a) small drives big (b) big drives small
16. 16.⚙️ Which gear set-up gives this: “good for a racing toy”? (a) big drives small (b) small drives big
17. 17.True or false: “the output is stronger” happens when a small gear drives a big one. (a) True (b) False
18. 18.True or false: “good for a racing toy” happens when a small gear drives a big one. (a) False (b) True
19. 19.⚙️ A small gear drives a big gear. The big gear turns … (a) not at all (b) at the same speed (c) faster and weaker (d) slower but stronger
20. 20.True or false: “good for lifting loads” happens when a small gear drives a big one. (a) False (b) True
21. 21.⚙️ 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
22. 22.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) clockwise (b) anticlockwise
23. 23.⚙️ A 10-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) slower (c) faster
24. 24.⚙️ A 20-tooth driver gear turns a 40-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) slower (c) at the same speed
25. 25.⚙️ Which gear set-up gives this: “the output is weaker”? (a) small drives big (b) big drives small
26. 26.⚙️ A 30-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
27. 27.⚙️ 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
28. 28.⚙️ A 15-tooth driver gear turns a 24-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) faster (c) at the same speed
29. 29.⚙️ 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
30. 30.⚙️ 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
31. 31.⚙️ Pulley A turns clockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) clockwise (b) anticlockwise
32. 32.⚙️ Which gear set-up gives this: “the output is stronger”? (a) big drives small (b) small drives big
33. 33.True or false: “the output is weaker” happens when a big gear drives a small one. (a) False (b) True
34. 34.⚙️ Which gear set-up gives this: “good for lifting loads”? (a) big drives small (b) small drives big
35. 35.⚙️ A 40-tooth driver gear turns a 24-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) at the same speed (c) slower
36. 36.⚙️ A 36-tooth driver gear turns a 40-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) at the same speed (b) faster (c) slower
37. 37.True or false: “the output turns slower” happens when a small gear drives a big one. (a) False (b) True
38. 38.True or false: “the output turns faster” happens when a small gear drives a big one. (a) False (b) True
39. 39.True or false: “good for a slow crane” happens when a big gear drives a small one. (a) False (b) True
40. 40.⚙️ A 30-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

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