levers & types of motion

Question 1

what is a mechanism?

Answer 1

a process that turns an input into an output

Question 2

examples of first order levers

Answer 2

see-saw, weighing scales

Question 3

examples of second order levers

Answer 3

wheelbarrow, bottle openers

Question 4

examples of third order levers

Answer 4

fishing road, using a garden spade

Question 5

first order lever

Answer 5

pivot in the middle, between the load and effort

Question 6

second order lever

Answer 6

load in the middle, pivot and effort on either end

Question 7

third order lever

Answer 7

effort is inbetween the pivot and load

Question 8

rotary

Answer 8

moving constantly in a 360 circular motion

Question 9

oscillating

Answer 9

moving back and forth in a curved motion

Question 10

linear

Answer 10

moving constantly in a straight line

Question 11

reciprocating

Answer 11

moving back and forth in a straight line

Question 12

examples of rotary motions

Answer 12

merry go rounds, microwave plate, record player

Question 13

examples of oscillating motions

Answer 13

pendulum, windscreen wipers, swing

Question 14

examples of linear motions

Answer 14

train, arrow from a crossbow, bullet

Question 15

examples of reciprocating motions

Answer 15

piston, needle in a sewing machine