# Shared Flashcard Set

## Details

Conceptual Physics Final
Review for Physics Final
29
Physics
12/09/2011

Term
 If you were to lift two equally heavy loads of laundry up a flight of stairs, how much work would you do compared to lifting just one load of laundry up the same stairs?
Definition
 Twice
Term
 If you were to lift one load of laundry up two flights of stairs how much work do you do compared to lifting one load of laundry up only one flight of stairs?
Definition
 Twice
Term
 Scalar
Definition
 A quantity that has magnitude
Term
 If you were to lift two eqully heavy loads of laundry up a flight of stairs, how much work do you do compared to lifyting just one load of laundry up two flights of stairs?
Definition
 The same
Term
 The unit of work
Definition
 Joule
Term
 The unit of power
Definition
 Watt
Term
 The unit of energy
Definition
 Joule
Term
 Potential energy is the energy an object has because of its...
Definition
 location
Term
 Vector
Definition
 A quantity that has Magnitude and Direction
Term
 What are 3 possible units for speed?
Definition
 Miles per hour, light years per century, kilometer per hour
Term
 In the absence of air resistance, objects fall at a constant _______
Definition
 Acceleration
Term
 What is an objects instantaneous speed at the top of its path?
Definition
 0 m/s
Term
 How fast does a free falling object fall after 9 seconds?
Definition
 90 m/s
Term
 If you drop a hammer and a piece of paper in a vacuum, which will hit the ground first?
Definition
 Both will both hit it at the same time
Term
 in the 1500s, an astronomer saved that the Earth revolves around the sun
Definition
 Copernicus
Term
 The Law of Inertia
Definition
 An objects tendency to stay in motion or at rest
Term
 ToF: An object on Earth will weigh less on the Moon
Definition
 True. Mass or Volume would say the same
Term
 ToF: Friction always works against an objects motion
Definition
 True
Term
 An object that is going in a straight line and has a constant speed has zero _______
Definition
 Acceleration
Term
 Newton's First Law
Definition
 An object in motion will stay in motion unless acted upon by an outside force. Also known as the Law of Inertia
Term
 Newton's Second Law
Definition
 Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
Term
 Newton's Third Law
Definition
 For every action, there is an equal or opposite reaction
Term
 Another word for centrifugal force is _________
Definition
 Center-Repelling
Term
 Axis
Definition
 Straight line which an object may rotate or revolve
Term
 Centripetal Force
Definition
 A center-seeking force that causes an object to move in a circular path
Term
 Centrifugal Force
Definition
 An apparent outward force on a rotating or revolving object; it is fictitious
Term
 Revolution
Definition
 Motion of an object turing around an axis outside the object
Term
 Rotation
Definition
 The spinning motion of an object turning around an axis inside the object
Term
 Rotational Speed
Definition
 The number of rotations or revolutions per unit of time
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