Machines Flashcards
What is the triangle for moment, force and distance
M
——
F | D
What is a moment sometimes known as
A turning force
What directions will a moment act in
Clockwise or anti-clockwise
What does it mean when a system is equilibrium (balanced)
The clockwise moment is equal to the anti-clockwise moment
What is the equation for equilibrium
Force x distance (clockwise) = force x distance (anti-clockwise) or CWM = ACWM
What do gears do
Transfer the speed, direction and torque of rotating power source
What type of gears meet at an angle
Bevel gears
What do pulleys do
Act to change the direction of force and are often used as force multipliers
How do you work out effort in pulleys
Effort = load
————
No. of ropes
How do you work out load in pulleys
Load = ropes x effort
