WorksheetsMechanisms
Total questions: 21
Worksheet time: 11mins
Mechanisms can...
Absorb, accumulate and disparate energy
Absorb, accumulate and dissipate energy
Absorb, accumulate and tranform energy
Spring mechanisms belong to…
Transformation of motion
Linear transmission of motion
Energy accumulation mechanisms
Rotary transmission of motion
Car suspension systems are usually made of
Long, curved pieces of wood on top each other' s and join in the middle
Long, curved pieces of copper on top each other' s and join in the middle
Long, curved pieces of Steel on top each other' s and join in the middle
Long, curved pieces of plastic on top each other' s and join in the middle
What' s the element shown in the picture?
bearing
freewheel
lever
spring
What does a freewheel?
They transmit motion in one direction
They transmit motion forewards and backwards
They control the transmission of motion
They aren' t a real mechanism
What are formed plain bearings by?
They are formed by a ring spinning around an axis
They are formed by a cylinder
They are formed by one big and plain ring
They are formed by two plain rings
Can you choose the correct antifriction bearings composition?
The inner ring, the outer ring, the rolling elements
The inner ring, the outer ring, the rolling elements, the stopper
The inner ring, the outer ring, the rolling elements, the retainer
The inner ring, the Rolling elements, the retainer
Are the pulleys linear transmission of motion mechanisms?
Yes, they are
No they aren' t
How many types of pulleys do you know?
Fixed pulleys, Compound pulleys and Movable pulleys
Fixed pulleys and Compound pulleys
Fixed pulleys, Compound pulleys and Removable pulleys
Fixed pulleys, Non-fixed pulleys and Movable pulleys
What do the mechanisms that control motion?
They just control direction of motion
They just control the speed of motion
They can control both speed or direction
They can control direction but not motion
Which are the existing types of brakes?
Band, drum and disc brakes
Band, dram and joy-stick brakes
Lever brakes
None of them are correct
Which kind of mechanism a "Ratchet" is?
Rotary transmission of motion mechanism
Linear transmission of motion mechanism
Mechanism that control motion
The picture is an example of…
Spring
shock absorber
buffer
damper
With energy accumulation systems we can...
Absorb energy
Dissipate energy
Keep energy
All the answers are correct
How many kinds of spring are there?
2
3
4
There' s no types of spring
How many types of levers do we have?
One
Two
Three
Four
Can you identify which is the mathematical expression of torque?
Moment * Distance
Force * Resistance
(Force * distance)/ resistance
A lever is…
A rigid bar that turns around a fixed point called Fulcrum
A fulcrum that turns around a fixed point called Shaft
A rigid bar that we have tu push to obtain a torque
A non rigid bar that turns around a fixed point called Fulcrum
In a lever system,
"d" is the distance from fulcrum related to the resistance and "r" is the distance from fulcrum related to the force
"d" is equal to "D" but smoother
"r" is the distance from fulcrum related to the resistance
"d" is the distance from fulcrum related to the forcé and "r" is the distance from fulcrum related to the resistance
In a lever system…
The fulcrum is not always located in the middle point of it
The fulcrum is always located in the middle point of it
The fulcrum is not a fixed point of the system.
A bike handlebar is a lever type…
3
2
1
4
