Robotics Worksheet: Gears – Speed or Strength

Robotics lesson 13: Gears: speed or strength · Set 589 · 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.⚙️ A 20-tooth driver gear turns an 8-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) faster (b) at the same speed (c) slower
2. 2.⚙️ A small gear drives a big gear. The big gear turns … (a) at the same speed (b) not at all (c) faster and weaker (d) slower but stronger
3. 3.⚙️ 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
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.⚙️ 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
6. 6.⚙️ Pulley A turns clockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) clockwise (b) anticlockwise
7. 7.⚙️ Which gear set-up gives this: “good for a racing toy”? (a) big drives small (b) small drives big
8. 8.⚙️ The gear fixed to the motor is called the … (a) idler gear (b) driver gear (c) driven gear (d) tyre
9. 9.True or false: “good for a racing toy” happens when a big gear drives a small one. (a) True (b) False
10. 10.⚙️ 5 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 5 turn? (a) clockwise (b) anticlockwise
11. 11.⚙️ A 16-tooth driver gear turns a 40-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) faster (c) at the same speed
12. 12.⚙️ Which gear set-up gives this: “good for lifting loads”? (a) big drives small (b) small drives big
13. 13.⚙️ 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
14. 14.⚙️ 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
15. 15.⚙️ Which gear set-up gives this: “the output turns slower”? (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 small driver gear (b) a big driver gear
17. 17.True or false: “good for lifting loads” happens when a small gear drives a big one. (a) False (b) True
18. 18.True or false: “good for a racing toy” happens when a small gear drives a big one. (a) True (b) False
19. 19.True or false: “the output is weaker” happens when a small gear drives a big one. (a) True (b) False
20. 20.⚙️ A 16-tooth driver gear turns a 30-tooth driven gear. Compared with the driver, how does the driven gear turn? (a) slower (b) at the same speed (c) faster
21. 21.⚙️ Which gear set-up gives this: “the output is stronger”? (a) small drives big (b) big drives small
22. 22.True or false: “the output turns faster” happens when a small gear drives a big one. (a) False (b) True
23. 23.⚙️ Which gear set-up gives this: “the output turns faster”? (a) big drives small (b) small drives big
24. 24.True or false: “the output is stronger” happens when a small gear drives a big one. (a) True (b) False
25. 25.⚙️ Pulley A turns anticlockwise and drives pulley B with an open belt (no cross). Which way does pulley B turn? (a) anticlockwise (b) clockwise
26. 26.⚙️ A 24-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
27. 27.⚙️ 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
28. 28.⚙️ An 8-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
29. 29.⚙️ Which gear set-up gives this: “good for a fast fan”? (a) big drives small (b) small drives big
30. 30.⚙️ 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
31. 31.True or false: “the output turns faster” happens when a big gear drives a small one. (a) False (b) True
32. 32.⚙️ What are the bumps round the edge of a gear called? (a) tyres (b) teeth (c) spokes (d) pins
33. 33.True or false: “good for lifting loads” happens when a big gear drives a small one. (a) False (b) True
34. 34.⚙️ 4 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 4 turn? (a) clockwise (b) anticlockwise
35. 35.⚙️ 2 gears are in a row, each meshed with the next. Gear 1 turns anticlockwise. Which way does gear 2 turn? (a) anticlockwise (b) clockwise
36. 36.⚙️ 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
37. 37.True or false: “the output turns slower” happens when a small gear drives a big one. (a) True (b) False
38. 38.True or false: “good for a slow crane” happens when a small gear drives a big one. (a) True (b) False
39. 39.True or false: “the output turns slower” happens when a big gear drives a small one. (a) True (b) False
40. 40.⚙️ 5 gears are in a row, each meshed with the next. Gear 1 turns clockwise. Which way does gear 5 turn? (a) clockwise (b) anticlockwise

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