Making Machines Flashcards
1
Q
How do you calculate the moment
A
Moment= force x distance
2
Q
What are the units for moments
A
Ncm or Nm
3
Q
What directions can moments go
A
Anti-clockwise and clockwise
4
Q
What do gear systems change
A
Direction and speed
5
Q
What type of gears are there
A
Helical gear
Spur gear
Worm gear
Bevel gear
Sprockets gear
Rack and pinion
6
Q
What is a pulley
A
Pulley act to change the direction of force and often use force multipliers
7
Q
How do u calculate the effort with pulleys
A
Load divided by ropes
8
Q
How do u calculate gear ratio
A
Number of teeth’s then divide
