Mechanical Comprehension
ASVAB Flashcards
What happens when a small gear turns a big gear?
Example: Wheelbarrow
How much a machine multiplies force.
What is mechanical advantage?
Changes direction of force.
Example: Seesaw
Big gear turns slower.
What do does adding pulleys do?
Resistance when two surfaces rub together.
Makes lifting easier.
Third-class lever example?
Second-Class Lever Example?
What does a fixed pulley do?
What does a moveable pulley do?
Example:Tweezers
The force that pulls objects back to earth
A push or pull on an object
First-Class Lever Example?
Force
Work
Reduces effort needed to lift.
Friction
Gravity
Title
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Work = Force x Distance
Friction slows motion.
Load in the middle
Effort in the middle
Subtitle
More torque (power).
Big mechanical advantage = easier liftingOutput/Input
Measured in Newtons(N)
Requires more pulling rope. = More force needed
Fulcrum in the middle
Does NOT reduce effort.
Pressure is equal everywhere.
(Inversely related) More speed = less torqueMore torque = less speed
What happens when a big gear turns a small gear?
If two gears touch, what direction do they turn?
A sloped surface that makes lifting easier.
A large wheel attached to a small shaft.Requires less force.
Two inclined planes together.
Rubber, Plastic, Wood.
What happens in a hydraulic system?
Small gear turns faster.
What material conducts electricity best?
What is a wheel and axle?
Speed vs Torque relationship?
What happens when metal heats up?
Pressure formula?
What is a screw?
An inclined plane wrapped around a cylinder.
Pressure = Force ÷ AreaSmall area = more pressure
It expands (gets bigger).
What is an inclined plane?
What is a wedge?
Metal (like copper)
What materials are insulators ?
Opposite directions.
Title
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Small piston → Big piston = more force
Subtitle
Less torque (power).
Ex: axe or knife
Ex. Steering wheel
Ex: ramp & screw jack
The load arm is the distance from:
The actual mechanical advantage is always:
Pascal's principle applies to:
Kinetic friction is
Air pressure decreases with:
Force decreases.
Bernoulli's principle explains:
Rotary to linear motion
Increased alititude
If distance increases on a machine, what happens to force?
A linkage converts :
A cam converts:
One type of linear motion to another
The mechanical advantage of a lever =
Reducing force needed
Less than IMA
Less than static
Efficiency=output/input x 100%
Fulcrum to load
=load arm / effort arm
Title
Hydraulics
Fluid flow
An inclined plane makes work easier by:
Efficiency =
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Subtitle
You trade distance for force.
The IMA ( Ideal Mechanical Advantage) of an inclined plane is:
A governor controls:
In a differential, when turning...
A centrifugal acts...
Away from center
Length/Height
Speed
Title
Torque =
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Torque = Force x Distance
Outer wheel turns faster
Subtitle
Mechanical Comprehension
Marina Campos
Created on March 2, 2026
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Transcript
Mechanical Comprehension
ASVAB Flashcards
What happens when a small gear turns a big gear?
Example: Wheelbarrow
How much a machine multiplies force.
What is mechanical advantage?
Changes direction of force.
Example: Seesaw
Big gear turns slower.
What do does adding pulleys do?
Resistance when two surfaces rub together.
Makes lifting easier.
Third-class lever example?
Second-Class Lever Example?
What does a fixed pulley do?
What does a moveable pulley do?
Example:Tweezers
The force that pulls objects back to earth
A push or pull on an object
First-Class Lever Example?
Force
Work
Reduces effort needed to lift.
Friction
Gravity
Title
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
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Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Work = Force x Distance
Friction slows motion.
Load in the middle
Effort in the middle
Subtitle
More torque (power).
Big mechanical advantage = easier liftingOutput/Input
Measured in Newtons(N)
Requires more pulling rope. = More force needed
Fulcrum in the middle
Does NOT reduce effort.
Pressure is equal everywhere.
(Inversely related) More speed = less torqueMore torque = less speed
What happens when a big gear turns a small gear?
If two gears touch, what direction do they turn?
A sloped surface that makes lifting easier.
A large wheel attached to a small shaft.Requires less force.
Two inclined planes together.
Rubber, Plastic, Wood.
What happens in a hydraulic system?
Small gear turns faster.
What material conducts electricity best?
What is a wheel and axle?
Speed vs Torque relationship?
What happens when metal heats up?
Pressure formula?
What is a screw?
An inclined plane wrapped around a cylinder.
Pressure = Force ÷ AreaSmall area = more pressure
It expands (gets bigger).
What is an inclined plane?
What is a wedge?
Metal (like copper)
What materials are insulators ?
Opposite directions.
Title
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
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Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Small piston → Big piston = more force
Subtitle
Less torque (power).
Ex: axe or knife
Ex. Steering wheel
Ex: ramp & screw jack
The load arm is the distance from:
The actual mechanical advantage is always:
Pascal's principle applies to:
Kinetic friction is
Air pressure decreases with:
Force decreases.
Bernoulli's principle explains:
Rotary to linear motion
Increased alititude
If distance increases on a machine, what happens to force?
A linkage converts :
A cam converts:
One type of linear motion to another
The mechanical advantage of a lever =
Reducing force needed
Less than IMA
Less than static
Efficiency=output/input x 100%
Fulcrum to load
=load arm / effort arm
Title
Hydraulics
Fluid flow
An inclined plane makes work easier by:
Efficiency =
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
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Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Subtitle
You trade distance for force.
The IMA ( Ideal Mechanical Advantage) of an inclined plane is:
A governor controls:
In a differential, when turning...
A centrifugal acts...
Away from center
Length/Height
Speed
Title
Torque =
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Use this side to give more information about a topic.
Torque = Force x Distance
Outer wheel turns faster
Subtitle