# Shared Flashcard Set

## Details

Physics Test 1:1
Physics Test 1 of 4 First Class
21
Physics
Not Applicable
07/13/2011

Term
 ScalarvsVector
Definition
 A Scalar quantity has only magnitudeA Vector quantity has magnitude and direction.The absolute value of a vector is a scalar
Term
 Write out the formula for average speed
Definition
 total distance covered----------------------time interval
Term
 write out the formula for acceleration
Definition
 change in velocity------------------time interval (in a double unit such as seconds squared or seconds per hour)
Term
 The distance traveled bya uniformly accelerating object starting from rest is formulated as (distance traveled)
Definition
 Distance traveled = 1/2 (acceleration X time X time)d = 1/2g t^2
Term
 Write out the formulas (3) for velocity
Definition
 v = gt = (B-A)/time = a x tg = rate of acceleration
Term
 Law of Inertia
Definition
 Every object continues in its state of rest, or of uniform motion in astraight line, unless it is compelled to change that state by forcesimpressed upon it; Newtons 1st Law.
Term
 What is Newtons First Law?
Definition
 The Law of Inertia; Every object continues in its state of rest, or of uniform motion in astraight line, unless it is compelled to change that state by forcesimpressed upon it.
Term
 What is a force simply defined as?
Definition
 A push or pull
Term
 What is the formula for and what does mechanical equilibrium mean?
Definition
 When the net force on something is zeroEF = 0(^ not actually E, but summation)
Term
 What are the two names for the force that acts to keep a book on a table per se?
Definition
 The support force, or normal force
Term
 Formula for Displacement
Definition
 B-A
Term
 DisplacementvsDistance
Definition
 Displacement is a vectorvsDistance is a scalar
Term
 Distinguish between constant position, constant velocity and constant acceleration in respect to displacement, velocity, and acceleration
Definition
 constant position D=DV=0a=0constant velocityD= v x tV = constantA = 0Constant accelerationD = (1/2a)(t^2)V = a x ta = constant
Term
 Define Free Fall
Definition
 No other forces are acting on it except for gravity, happens the instant an object “leaves your hand”; constant acceleration
Term
 Define Kinematics
Definition
 The description of how things move
Term
 What causes acceleration?
Definition
 Forces
Term
 What is the formula for gravity?
Definition
 mgm = massg = acceleration rate (9.8 m./s^2 or 32 ft/s^2
Term
 What is weight a measurement of?What is the pound unit of?
Definition
 Force
Term
 What is the formula for net force?
Definition
 netF = mamass x acceleration
Term
 What is net force?
Definition
 In a net force, the direction of the force and the direction of the acceleration are equal; the summation of forces
Term
 What is a newton? (the formula for one)
Definition
 Newton = kg x m/s^21 N = 1kg x m/s^2m = meter
Supporting users have an ad free experience!