Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 686 · 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 weaker”? (a) big drives small (b) small drives big
2. 2.⚙️ Which gear set-up gives this: “the output turns faster”? (a) big drives small (b) small drives big
3. 3.True or false: “the output turns faster” happens when a small gear drives a big one. (a) False (b) True
4. 4.True or false: “the output turns slower” happens when a big gear drives a small one. (a) True (b) False
5. 5.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) big drives small (b) small drives big
6. 6.⚙️ 6 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 6 turn? (a) clockwise (b) anticlockwise
7. 7.True or false: “good for lifting loads” happens when a small gear drives a big one. (a) False (b) True
8. 8.⚙️ 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
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) anticlockwise (b) clockwise
10. 10.⚙️ Which gear set-up gives this: “good for a slow crane”? (a) small drives big (b) big drives small
11. 11.⚙️ 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
12. 12.⚙️ What are the bumps round the edge of a gear called? (a) tyres (b) spokes (c) teeth (d) pins
13. 13.⚙️ Pulley A turns clockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
14. 14.⚙️ The gear fixed to the motor is called the … (a) driver gear (b) tyre (c) driven gear (d) idler gear
15. 15.True or false: “the output is stronger” happens when a small gear drives a big one. (a) True (b) False
16. 16.True or false: “the output turns faster” happens when a big gear drives a small one. (a) True (b) False
17. 17.⚙️ A 12-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
18. 18.True or false: “good for a racing toy” happens when a big gear drives a small one. (a) True (b) False
19. 19.⚙️ 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
20. 20.⚙️ A big gear drives a small gear. The small gear turns … (a) at the same speed (b) not at all (c) slower but stronger (d) faster but weaker
21. 21.⚙️ 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
22. 22.⚙️ Which gear set-up gives this: “the output is stronger”? (a) small drives big (b) big drives small
23. 23.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) clockwise (b) anticlockwise
24. 24.⚙️ Which gear set-up gives this: “the output turns slower”? (a) big drives small (b) small drives big
25. 25.True or false: “the output is weaker” happens when a small gear drives a big one. (a) True (b) False
26. 26.⚙️ 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
27. 27.⚙️ A 40-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) faster (c) slower
28. 28.⚙️ A 20-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
29. 29.True or false: “good for a fast fan” happens when a big gear drives a small one. (a) True (b) False
30. 30.⚙️ 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
31. 31.⚙️ A 20-tooth driver gear turns a 16-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) at the same speed (c) faster
32. 32.True or false: “good for lifting loads” happens when a big gear drives a small one. (a) False (b) True
33. 33.True or false: “good for a slow crane” happens when a small gear drives a big one. (a) False (b) True
34. 34.True or false: “good for a slow crane” happens when a big gear drives a small one. (a) False (b) True
35. 35.True or false: “good for a fast fan” happens when a small gear drives a big one. (a) False (b) True
36. 36.⚙️ A 36-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
37. 37.⚙️ An 8-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) faster (c) slower
38. 38.True or false: “good for a racing toy” happens when a small gear drives a big one. (a) False (b) True
39. 39.⚙️ A 12-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) faster (c) slower
40. 40.⚙️ Which gear set-up gives this: “good for a racing toy”? (a) small drives big (b) big drives small

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