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
32 Cards in this Set
 Front
 Back
What is Kinematics?

the study of motion without regard to the forces that produce it


What are Dynamics?

the study of motion when forces are considered


How did Aristotle (Greek) Classify Motion?

Violent and Natural


What Idea did Galileo (Italian) come up with?

Inertia


What is Inertia?

the property of objects to maintain their state of motion or an objects ability to resist motion


How do we measure Inertia?

The amount of material in an object or it's mass


How much is 1kg in pounds?

2.2lbs


How many Newtons make a kg?

1kg = 9.8 Newtons


What is Net Force?

The Sum of all the forces acting on an object


A vector quantity means that in order to describe it, we need to tell both its size (magnitude) and its direction Example: force, velocity, acceleration

a


What is a scalar quantity? Example: time, mass, volume

a quantity that only needs a magnitude (size) to describe it


What is in mechanical equilibrium?

Anything that isn't undergoing a change in motion (no net force)


In 1543 who stated the earth revolved around the sun?

Nicolaus Copernicus


Published 3 laws and based his ideas on Galileo's ideas?

Sir Issac Newton


Newton's 1st law is?

Law of Inertia  An object remains either at rest or in motion due to its inertia. An outside force must act on the object to change the motion and overcome the object’s inertia.


Newton's 2nd law is?

Acceleration = net force over mass or... The acceleration produced by a net force on an object is directly proportional to the net force, is in the same direction as the net force, and is inversely proportional to the mass of the object


What is Terminal Velocity?

When an object reaches it's max acceleration


Newton's 3rd law is?

For Every Action there is an equal and opposite reaction


What is the law of conservation of momentum?

in the absence of any external force, the momentum of a system remains unchanged


Gravitational Force is equal to?

Gravitational Force = 1 over distance squard


Difference in Pulls on the opposite side of an object can be described as?

1 over distance cubed


Acceleration = Force / Mass

a


Speed = distance / time

a


Power = work done / time

a


Work = Force * Distance

a


Velocity = distance / time

a


Gravity = force / mass

a


Ft = (change)mv or force * time interval = change in momentum

a


KE = 1/2mv^2

a


PE = wh

a


Momentum = mv

a


wieght = mg

a
