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Mechanisms 2ºESO - Technology Flashcards | StudBud
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Mechanisms 2ºESO - Technology
Mechanisms 2ºESO - Technology
20 terms
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#Technology #ESO #TPR
Flashcards
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Questions
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Answers
1
Transmission ratio is:
is used in cams
is measured in meters
is the ratio between the effort and the resistance
the ratio between the size of friction wheels and the speed
2
An appliance of chain and sprockets is
tunning strings of musical instruments
bicycles and motorcycles
clocks
washing machines
3
An appliance of rack an pinion is:
bicycles and motorcycles
clocks
garage doors
washing machines
4
Screw and nut mechanism:
There is reciprocating motion
here´s no motion at all
Converts rotary motion into linear motion
Converts linear motion into linear motion
5
The driver element in a car is:
the engine
the wheels
the doors
the gearbox
6
The following gears rotate:
in the opposite direction
in the same direction
at the same speed
they do not rotate
7
This is a
1st class lever
2nd class lever
3rd class lever
All others are false
8
The following mechanism is a:
chain and sprockets
friction wheels
belt and pulley
gears
9
The driven element in a car is:
the doors
the engine
the gearbox
the wheels
10
Which of the following mechanisms do not have rotary transmission?
Levers
Friction wheels
Gears
Chain and sprockets
11
The effort (F) needed to lift a weight (R) using a fixed pulley is:
F=R-8
F=R/2
F=R
F=Rx1000
12
An object having oscillating motion:
moves in a straight line
moves backwards and forwards
does not move
moves in circles
13
In the belt and pulley the wheels rotate:
in the same direction
in the opposite direction
they do not rotate
at the same speed
14
Which gear rotates faster?
The smaller
They both rotate at the same speed
The bigger
They do not rotate because they have linear motion
15
The following mechanism is a:
Worm gear
Gear
Cam
Wheel
16
The following mechanism is
worm gear
cam
rack and pinion
not a mechanism
17
The following mechanism is a:
Worm gear
Crank and slider
Wheel
Gear
18
In linear motion:
the object moves backwards and forwards
the object moves in circles
the object moves in a straight line
the object trace a curve
19
This is a:
Lever
Gears
Fixed pulley
Moveable pulley
20
Mechanisms are devices that:
all of the above are true
transmit and/or convert motion
are structures
transmit and/or convert electricity
