# Shared Flashcard Set

## Details

AP Physics 1
Physics 1 test
81
Physics
04/05/2016

Term
 Equation
Definition
 A mathematical expression containing two parts, one on either side of the equals sign.
Term
 Formula
Definition
 An equation used for the purpose of deriving a certain value or solving some practical problem.
Term
 Vector
Definition
 A special type of quantity in which there are two components:magnitude and direction.
Term
 Coefficients
Definition
 A specific number.
Term
 Constant
Definition
 A specific quantity represented by a letter of the alphabet.
Term
 Varible
Definition
 An expression that stands for numbers but are not specific
Term
 The constant "c" stands for what, and how much?
Definition
 It stands for the speed of light and has the value of 299, 792, 000 meters per second.
Term
 Speed is most often given in ____ per ____, because distance is in ____ and time is in ____.
Definition
 Meters per second, Meters, seconds
Term
 What is the common name for a "one-variable second-order equation"?
Definition
Term
 What is the proper form for the qudratic equation?
Definition
 a(x^2) + bx + c = 0
Term
 Vectors are commonly used in physics to represent what three things?
Definition
 Force, velocity and acceleration.
Term
 What is a scalar?
Definition
 A real number.
Term
 A number line is ____ ____ and they only have ____.
Definition
 one dimentional... magnitude.
Term
 What are some examples of what scalars can be used for?
Definition
 Time, Temperature, Mass...
Term
 How do you find the sum of two vectos geometrically?
Definition
 You construct a parallelogram with a and b as adjacent sides; then a+b is the diagonal of this parallelogram.
Term
 V and Δ x and t
Definition
 V= Δ x / t
Term
 a and Δ v and t
Definition
 a= Δ v / t
Term
 Fnet = ma
Definition
 Fnet = ma
Term
 x = xo + vo + 1/2at^2
Definition
 x = xo + vo + 1/2at^2
Term
 v = vo + at
Definition
 v = vo + at
Term
 vf 2 = vo 2 + 2a Δ x
Definition
 vf 2 = vo 2 + 2a Δ x
Term
 x = v t = [ (v + vo)/2 ] t
Definition
 x = v t = [ (v + vo)/2 ] t
Term
 Ff = μ Fn
Definition
 Ff = μ Fn
Term
 Fs = k x
Definition
 Fs = k x
Term
 a = Fnet / m or dv/dt = Fnet / m
Definition
 a = Fnet / m or dv/dt = Fnet / m
Term
 w = Fd cos θ = F ∙ x
Definition
 w = Fd cos θ = F ∙ x
Term
 w = area under F- x curve
Definition
 w = area under F- x curve
Term
 Pavg = w / t
Definition
 Pavg = w / t
Term
 P = F v cos θ
Definition
 P = F v cos θ
Term
 k = ½ mv 2
Definition
 k = ½ mv 2
Term
 Ug = mgh
Definition
 Ug = mgh
Term
 Us = ½ k x
Definition
 Us = ½ k x
Term
 ∆ k = w
Definition
 ∆ k = w
Term
 ∆ u = w
Definition
 ∆ u = w
Term
 Energy i = Energy f
Definition
 Energy i = Energy f
Term
 Xcm = (X1m1 + X2m2 + …) / (m1+m2+…)
Definition
 Xcm = (X1m1 + X2m2 + …) / (m1+m2+…)
Term
 p = mv
Definition
 p = mv
Term
 J =∆p
Definition
 J =∆p
Term
 J = Favg t
Definition
 J = Favg t
Term
 J = area under F-t curve
Definition
 J = area under F-t curve
Term
 τ = rFsinθ
Definition
 τ = rFsinθ
Term
 α = τ net / I
Definition
 α = τ net / I
Term
 Vector
Definition
 Something that has magnitude (a number) and direction.
Term
 Scalar
Definition
 Has a magnitude (number) only.
Term
 Position
Definition
 Separation between an object and a referency point.
Term
 Instantaneous Velocity
Definition
 velocity (or speed) at that instant of time, or, it can be defined as the average velocity (or speed) over an infinitesimally short time interval (average speed and velocity are always the same value)
Term
 Distance/Displacement formula:
Definition
 d=vt
Term
 SI unit for speed or velocity:
Definition
 m/s
Term
 Acceleration due to gravity:
Definition
 9.8 m/s2
Term
 Acceleration formula:
Definition
 a = Vf-Vi t
Term
 Formula for final velocity:
Definition
 Vf=vit
Term
 Distance formula with acceleration:
Definition
 d=vit+(1/2)at2
Term
 Formula for final velocity squared:
Definition
Term
 Inertia
Definition
 a measure of how an object resists changes in motion; it is a measure of an object’s mass
Term
 Newton's first law:
Definition
 An object in motion/at rest will remain in motion/at rest unless acted on by an outside force.
Term
 Newton's second law:
Definition
 an unbalanced force (or net force, S) causes an object to accelerate; this acceleration is directly proportional to the unbalanced force and inversely proportional to the object’s mass; called the law of acceleration a = SF / m or S F = m a
Term
 Newton's third law:
Definition
 When one object exerts a force on another object, the second object exerts a force on the first object that is equal in magnitude, but opposite in direction; for every action, there is an equal, but opposite reaction; called the law of action-reaction
Term
 Universal gravitational constant:
Definition
 G = 6.67 x 10-11 N m2/kg2
Term
 Formula for the force of weight:
Definition
 Fw = mg
Term
 Formula for the force of friction:
Definition
 Ff=μFn
Term
 Formula for force:
Definition
 F=ma
Term
 Force of gravity:
Definition
 FG= Gm1m2 d2
Term
 Formula for parallel force:
Definition
 Fp=Fwsinϑ
Term
 Formula for normal force:
Definition
 Fp=Fwcosϑ
Term
 Formula for centripetal force:
Definition
 Fc= mv2 r
Term
 Formula for vertical velocity:
Definition
 Vv=vsinϑ
Term
 Formula for horizontal velocity:
Definition
 Vh=vcosϑ
Term
 The formula for a period:
Definition
 [image]
Term
 The formula for frequency:
Definition
 ƒ = 1/T
Term
 The formula for centripetal acceleration:
Definition
 [image]
Term
 Amplitude
Definition
 the distance from the equilibrium point to the point of greatest displacement
Term
 Momentum, definition and formula:
Definition
 a measure of how hard it is to stop a moving object; it is the product of the object's mass and its velocity; since velocity is a vector, momentum is a vector quantity; symbol is p and SI unit are kg m/sec. The direction of the momentum is the same as that of the velocity. p= m v
Term
 Net force in relation to momentum:
Definition
 ΣF = Δp / Δt
Term
 Definition and formula for impulse:
Definition
 a force exerted over a time interval; symbol is J and SI unit is N sec J = F t
Term
 Impulse in relation to average force, mass and momentum.
Definition
 J = F t = m Δv = Δp
Term
 Law of Conservation of Momentum:
Definition
 the momentum of a closed, isolated system is constant; the sum of the initial momentum of the objects is equal to the sum of the final momentum of the objects Σpi = Σpf
Term
 Formula for work:
Definition
 W = Fd
Term
 Formulas for work input, work output and efficiency in relation to work:
Definition
 Wi = Fappdapp Wo = Fwh eff= Wo/Wi
Term
 Kinetic and Potential Energy formulas:
Definition
 KE = (1/2)mv2 PE = mgh
Term