Chapter 6 Key words

Question 1

Mechanism

Answer 1

parts that work together to control forces and motion

Question 2

system

Answer 2

general name for a set of mechanical or electronic parts that work together to produce a desired poduct

Question 3

force

Answer 3

a push/pull/twist

Question 4

rotary

Answer 4

follows the paths of a circle. Measured by counting the number of revolutions in a set period of time.

Question 5

Linear

Answer 5

Motion in a straight line.

Question 6

Speed equation

Answer 6

Speed=distance/time

Question 7

Oscillating

Answer 7

similar to circular motion, rotation moves back and forth in a circular path

Question 8

reciprocating

Answer 8

back and forth motion in a straight line

Question 9

input

Answer 9

type of motion put inot a mechanism

Question 10

output

Answer 10

type of motion a mechanism produces

Question 11

arm length

Answer 11

distance between force exerted and the fulcrum

Question 12

efort

Answer 12

the input force

Question 13

fulcrum

Answer 13

the pivot around which a lever turns

Question 14

lever

Answer 14

a rigid bar that turns around a fulcrum

Question 15

load

Answer 15

the output force

Question 16

Cam and follower

Answer 16

mechanism to convert rotary motion into reciprocating motion

Question 17

pinion

Answer 17

a smaller driver gear (smaller than the driven gear)

Question 18

shaft

Answer 18

a rod that transfers the rotation through a mechanism

Question 19

simple hear train

Answer 19

pair of gears consisting of a driven gear and a driver gear

Question 20

torque

Answer 20

a turning or twisting force

Question 21

Spur gear

Answer 21

a wheel with teeth around its edge

Question 22

lubrication

Answer 22

substance applied to reduce friction between moving parts

Question 23

pulley and belt drive

Answer 23

a method of transferring rotary motion between 2 shafts

Question 24

Linkage

Answer 24

a component used to direct forces and movement to where they are needed

Question 25

subsystems

Answer 25

a section with a specific role within a system

Question 26

system diagram

Answer 26

a diagram of the interconnection and flow of signals in an electronic system

Question 27

embedding

Answer 27

customizing a micro controller to e permanently placed within a product

Question 28

micro controller

Answer 28

a programmable electronic component that adds functionality to a product

Question 29

physical quantity

Answer 29

something that can be measured (light, speed, temperature)

Question 30

Program

Answer 30

set of instructions to tell a micro controller how to carry out a task

Question 31

sensor

Answer 31

a component that produces a signal in response to a specific physical quantity

Question 32

signal

Answer 32

electronic voltage that is used to represent information

Question 33

latching

Answer 33

a switch that stays on or off after the button is released

Question 34

momentary

Answer 34

a switch that stays on only while it is held pressed