# Shared Flashcard Set

## Details

physics midterm review
vocab and formulas
46
Physics
12/17/2013

Term
 momentum formula
Definition
 p=m/v
Term
 kinetic energy formula
Definition
 KE=1/2mv
Term
 potential energy
Definition
 stored energy
Term
 momentum
Definition
 a property a moving object has
Term
 joule
Definition
 the SI unit of energy
Term
 elastic potential energy
Definition
 energy stored by something that can stretch (like a spring)
Term
 chemical potential energy
Definition
 energy stored in chemical bonds
Term
 gravitational potential energy (GPE)
Definition
 energy stored by objects above the earth
Term
 GPE formula
Definition
 GPE=mgh
Term
 factors in GPE
Definition
 mass, height, gravity
Term
 mechanical energy
Definition
 the sum of potential energy and kinetic energy
Term
 law of conservation of energy
Definition
 energy cannot be created or destroyed, but can be transformed
Term
 force
Definition
 push or a pull
Term
 inertia
Definition
 tendancy of an object to resist a change in motion
Term
 Newton's 1st law
Definition
 an object moving at a constant velocity keeps moving until a force acts upon it
Term
 Newton's 2nd law
Definition
 acceleration of an object is in the same direction as the net force
Term
 Newton's 3rd law
Definition
 for every action there is an equal but opposite reaction
Term
 friction
Definition
 force that opposes movement
Term
 static friction
Definition
 prevents two surfaces sliding on each other
Term
 sliding friction
Definition
 microwelds break but form again
Term
 rolling friction
Definition
 friction that gives wheels something to grab on
Term
 air resistance
Definition
 air pushes up on things falling down
Term
 gravity
Definition
 attractive force between 2 objects
Term
 force of gravity formula
Definition
 f=mg
Term
 weight
Definition
 gravitational force on an object
Term
 weight formula
Definition
 w=mg
Term
 centripetal acceleration
Definition
 acceleration toward the center of a circular path
Term
 centripetal force
Definition
 net force toward the center of the circular path
Term
 gravity on Earth
Definition
 9.8
Term
 conversions
Definition
 move decimal back the numbers of zeros OR multiply or divide
Term
 mass
Definition
 quantity of matter
Term
 density
Definition
 mass per unit of volume
Term
 converting Celsius to Kelvin
Definition
Term
 converting Kelvin to Celsius
Definition
 subtract 273
Term
 absolute zero
Definition
 0 Kelvin or -273 Celsius
Term
 speed
Definition
 distance objects travel per unit of time
Term
 displacement
Definition
 object's position relative to the starting point
Term
 distance
Definition
 how far an object travels
Term
 speed formula
Definition
 s=d/t
Term
 average speed
Definition
 total distance divided by total time
Term
 instantaneous speed
Definition
 speed at any given time
Term
 velocity
Definition
 speed and direction
Term
 acceleration
Definition
 rate of change in velocity
Term
 acceleration formula
Definition
 a=vf-vi/t
Term
 net force
Definition
 combination of 2 forces
Term
 balanced force
Definition
 forces equal in size but opposite in direction
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