ESD-Emerging and Sustainable Technologies flashcards (copy)

Emerging and Sustainable Technologies yae

What is the process of all mechanisms?

Input, Process, Output

What are the types of movement in mechanisms?

Linear, Reciprocating, Rotary, Oscillating

What does a linear mechanism do?

Straight line, one direction

What does a reciprocating mechanism do?

Straight line, forwards and backwards movement

What does a rotary mechanism do?

circular movement

What does a oscillating mechanism do?

circular forwards and backwards movement

What is the three parts of a lever?

Effort load Fulcrum

What is the ‘effort’ part of a lever?

The power you put into a lever

What is the ‘Load‘ part of a lever?

The weight of the object moved

What is the ‘fulcrum‘ part of a lever?

The point at which the lever turns or pivots

What is the first class of a lever system

E F L

What is the second class of a lever system

F L E

What is the third class of a lever system

F E L

The formula of mechanical advantage

MA = Load / Effort

The formula of velocity ratio

VR = distant effort moves / distant load moves

What is the type of linkage that goes back and forth

Reverse motion linkage

What is the type of linkage that turns 90 degrees in direction

Bell crank

What is this cam?

Eccentric cam

What is this cam?

Ratchet/snail cam

What is this cam?

Pear cam

What is a pulley?

A wheel with a groove around its edge in which a belt, rope or chain can sit

What is the formula for Speed Ratio

SR = Diameter of driver pulley / Diameter of driven pulley

What are the two parts of a pully (gears)

Driver pully and Driven Pulley

What is this type of gear?

Bevel gear

What is this type of gear?

Worm gear

What is this type of gear?

Rack and pinion gear