mechanims

Question 1

What is an effort, fulcrum and load? Give an example of a third-class lever

Answer 1

effort: output
fulcrum: a point at which the beam pivots
load: input
e.g of third-class,broom,fishing rod,human arm

Question 2

what are the four different types of motions?

Answer 2

The answers are: rotary/circular,oscillating,linear and reciprocating.

Question 3

which mechanism is the one attached to a power source?

Answer 3

driver/driving pulley

Question 4

in an open drive system,do the pulleys rotate in the opposite or same direction?

Answer 4

they rotate in the same direction

Question 5

which class lever has the fulcrum in the middle of the effort and the load

Answer 5

first class

Question 6

which class lever has the effort located between the load and the fulcrum

Answer 6

third class

Question 7

which class lever has the load located between the effort and the fulcrum

Answer 7

second class

Question 8

what are the three different types of cams?

Answer 8

snail cam,pear cam and eccentric cam

Question 9

which class lever is a crowbar and a wire stripper

Answer 9

first class lever

Question 10

what does scamper stand for?

Answer 10

substitute
combine
apply
modify
put to other uses
eliminate
reverse/rearrange

Question 11

what terms might products be analysed by?

Answer 11

functions/material/ergonomics/manufacture/cost/asthetics

Question 12

why is a mock-up done?

Answer 12

A mock-up is normally made during development to help the designer to
a) determine the critical dimensions
b) test mechanisms or interesting features before constructing them with the
actual materials.