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AP Exam Flashcards

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1
Q

Prefixes for SI units

A

nano (n) 10^-9
micro (mu) 10^-6
milli (m) 10^-3
centi (c) 10^-2
BASE
kilo (k) 10^3
mega (M) 10^6
giga (G) 10^9
Tera (T) 10^12

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2
Q

velocity

A

distance / time

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3
Q

average speed

A

total distance/total time

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4
Q

average acceleration

A

change in velocity/change in time

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5
Q

instantaneous acceleration from graph

A

find slope of tangent line from velocity v time graph

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6
Q

slope of position time graph

A

velocity

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7
Q

area under velocity time graph

A

displacement

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8
Q

slope of velocity time graph

A

acceleration

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9
Q

kinematic equations

A

vf=vi+at
x=vit+1/2at^2
x=vft-1/2at^2
vf^2=vi^2+2ax
x=1/2t(vf-vi)

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10
Q

(projectile motion) there is no acceleration in the

A

x-direction

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11
Q

Force of Gravity Equation

A

Fg=G(m1m2/r^2)
G= 6.67x10^-11

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12
Q

Weight Force Equation

A

Fw=mg

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13
Q

On forces on an incline what do you do with the sin/cos

A

flip them (sin=x, cos=y)

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14
Q

Force Equation

A

F=ma

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15
Q

a constant force provides ______

A

constant acceleration

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16
Q

if acceleration is 0, there is no

A

net force

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17
Q

apparent weight

A

magnitude of supporting contact forces

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18
Q

amount of work done depends on ______ and _______

A

magnitude of F and displacement of system

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19
Q

kinetic energy equation

A

k=1/2mv^2

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20
Q

spring potential energy

A

Us= 1/2kx^2

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21
Q

gravitational potential energy

A

Ug=mgh

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22
Q

Work equation

A

W=fx=k=u (no friction)

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23
Q

when acceleration is 0, work

A

is 0

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24
Q

rotational kinetic energy

A

kr=1/2Iw^2

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25
law of conservation of energy
total initial energy=total final energy
26
Power equation
E/x=W/t=fv (velocity had to be consant)
27
unit for power
watt
28
force and impulse equation
force=p/t
29
impulse momentum theory
Ft=mv J=change in momentum
30
area under force time graph
change in momentum
31
3 types of collisions
1. elastic 2.partially elastic 3. inelastic
32
elastic collision
ideal, when things bounce and energy is conserved
33
partially elastic collision
energy in system is not conserved, hit bounce separate
34
inelastic collision
run into and stick together, energy is not conserved
35
momentum is conserved when
no outside force
36
uniform circular motion makes acceleration directed toward the
center of the circle
37
_______ is not constant in uniform circular motion
velocity (it is constantly changing directions)
38
centripetal acceleration equation
a=v^2/r=(2pif)^2r=(2pi/T)^2r
39
circular motion velocity
v=2(pi)(r)/T v=2(pi)(r)(f)
40
in circular motion, net force will either be provided by
tension, friction, or normal force
41
an orbiting projectile is
in free fall
42
rotational velocity
theta/time
43
Angular acceleration
rotational velocity/time
44
rotational kinematics
ωf=ωI+αt ωf^2=ωi^2+2αθ θ=ωit+1/2αt^2 θ=ωft-1/2αt^2 θ=1/2t(ωf+ωi)
45
Centripetal force equation
Fc=ma=mv^2/r=4pi^2rm/T^2=4pi^2rmf^2
46
centripetal acceleration
ac=v^2/r
47
centripetal velocity
v=2pir/T
48
tangent acceleration
a=rα
49
tangent velocity
rω
50
Newton's law of gravitation equation
Fg=G(m1m2/r^2)
51
G=
6.67X10^-11
52
net torque equation
T=Iα
53
moment of inertia for shell
mr^2
54
moment of inertia for disk
1/2mr^2
55
rotational kinetic energy equation
1/2Iω^2
56
impulse momentum theory for rotational dynamics
Ft=mv torque(t)=Iω L=Iω
57
mechanical wave
a wave that is an oscillation of matter, and therefore transfers energy through a material medium
58
transverse wave
a wave in which the particles in the medium move perpendicular to the direction in which the wave travels
59
longitudinal wave
the particles in the medium move parallel to the direction in which the wave travels
60
linear density equation
mu=m/L
61
Hooke's law
Fs=-kx
62
Nu equation SHM
ν=λf
63
total energy in SHM
E=1/2kA^2=1/2m ω^2A^2
64
period for SHM
T=2pi root m/s
65
frequency for SHM
f=2pi^-1 root k/m
66
Angular frequency shm
ω=theta/T=2pi/T=2pif
67
period for a pendulum
T=2pi root l/g

AP Physics (1 decks)

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