Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
67 Cards in this Set
 Front
 Back
Newton's First Law

aka Law of Inertia.
A body at rest or in uniform Motion will remain at rest or in uniform motion unless some external force is applied to it. 

Inertia

The body's reluctance to change whatever its doing (this remaining stationary). Also characterized as the "laziness of an object".


Mass

Quantity of matter of which a body is made or composed. It is a quatitative measure of body's inertia


Unit of Mass

In kilograms (kg) or grams (g) in the metric and slugs int he English system


Newton's Second Law

When a body acted upon by a constant force, its relucting acceleration is proportional to the force applied and inversely proportional to the mass and the acceleration takes place in direction in which the force acts.


Newton's Third Law

To every action, there is an equal and opposite reaction.
When a body is at rest or in motion, the state of the body depends upon the reaction forces acting on it and not upon the action forces the body exerts on their bodies. 

Pound

a force when applied to a mass of 1 slug. It will produce an acceleration of 1ft/s2.


Newton

a force when applied to a mass of 1kg it will produce an acceleration of 1m/s2.


Weight

weight and force have both magnitude and direction and are thus vector quantities.


Mass

Mass is a scalar quantity because it has magnitude only.


Newton's 4th Law

aka Law of Universal Gravitational.
any two bodies attract each other with a force proportional to the product of their masses and universely proportional to the square of the distance between them. 

Work

force times the distance through the force acts
w = f x d 

Mass
ENGLISH 
slugs (s)


Mass
METRIC 
kilogram (kg)


Acceleration
ENGLISH 
ft/s2


Acceleration
METRIC 
m/s


Force
ENGLISH 
slugft/s2 (pound)


Force
METRIC 
kgm/s2 (Newton)


Work
ENGLISH 
ftlb


Work
METRIC 
mN or (Joules)


Power
ENGLISH 
ftlb/s


Power
METRIC 
mN/s or (Joules)


Potential Energy
ENGLISH 
ftlb


Potential Energy
METRIC 
mN or Joules


Kinetic Energy
ENGLISH 
ftlb


Kinetic Energy
METRIC 
mN or (Joules)


Power

the rate at which work is being done or time rate of performing work


Power (equations)

power = work/time
power = (f x d)/time power = f (d/t) power = f x v 

Energy

the capacity to do work


6 Forms of Energy

1. Chemical
2. Electric 3. Heat 4. Light 5. Mechanic 6. Nuclear 

Torque

Torque is necessary to produce angular acceleration as force is required to cause linear acceleration (f = ma)


Torque

Is produced when when a force is applied offcenter to the axis of rotation. Thus causes a rotation of the body


Torque

The magnitude is determined by the applied force and the length of the force arm


Force Arm

The perpendicular distance or the shortest distance from the axis of rotation to the line of action of the force


Torque (L)

= Force (F) x Force Arm (dI)


Properties of Torque

1. magnitude of how much turning effect
2.Direction of turning effect 3. Point of Force Applicationthe point at which the force is being applied to the system. 4. Line of Action Forcethe line in which the force is being applied it extends in either direction and provides a reference line for determining the length of the force arm 

Torque

The larger thr force applied or the longer the force arm or both the greater the torque produced.


Force

For two equal forces applied to a body, the force that has the longer force arm produces the greater torque


Speed
ENGLISH 
ft/s


Speed
METRIC 
m/s


Speed
FORMULA 
s = l/t


Velocity
ENGLISH 
ft/s


Velocity
METRIC 
m/s


Velocity
FORMULA 
v = d/t


Acceleration
ENGLISH 
ft/s2


Acceleration
METRIC 
m/s2


Acceleration
FORMULA 
a = (vfvi)/(tfti)


Mass
ENLGISH 
slug


Mass
METRIC 
kilogram (kg)


Force
ENLGISH 
slugft/s2 (pound)


Force
METRIC 
kgm/s2 (N)


Force
FORMULA 
f = ma


Weight
ENGLISH 
slugft/s2 (pound)


Weight
METRIC 
kgm/s2 (N)


Weight
FORMULA 
Fg = mg


Power
ENGLISH 
ftlb/s


Power
METRIC 
mN/s (J/s or Watt)


Power
FORMULA 
p = f(d/t) or f(v)


Potential Energy
ENGLISH 
ftlb


Potential Energy
METRIC 
mN (Joule)


Potential Energy
FORMULA 
PE = mgh or Wh


Kinetic Energy
ENGLISH 
ftlb


Kinetic Energy
METRIC 
mN (Joule)


Kinetic Energy
FORMULA 
KE = 1/2 mv2


Torque
ENGLISH 
lbft


Torque
METRIC 
Nm (Joule)


Torque
FORMULA 
L = f(DI)
