2.8: Mechanical devices

6. Components that rest on a cam and track it's rise and fall are known as.
7. A series of interlocking gears is known as a?
8. A cam that only operates in one direction.
9. Crank and ?, a linkage that converts rotary motion into reciprocating like pistons in an engine.
11. When the effort and load are balanced, this is known as?
15. If a drive gear is turning anti-clockwise, the driven gear must turn what?
16. Motion in a circular direction.
17. A class 2 lever like a nutcracker has what in the middle?
18. Straight movement in one direction.
19. Linkage that converts rotary motion into oscillating.

1. Movement in an arch like a pendulum or swing.
2. A class 1 lever like a see saw has the what in the middle?
3. Mechanisms which change a force's direction or magnitude are known as?
4. A cam with the hole for the cam shaft drilled off centre.
5. Movement back and forth.
10. The material belts used with pulleys are often made from.
11. A class 3 lever like a pair of tweezers has what in the middle?
12. A gear between a drive and driven gear which allows them to turn in the same direction is known as an?
13. A series of pulleys given a greater mechanical advantage is know as a block and what?
14. The pivoting point of a lever is also known as the?