Flashcards in Physics Deck (58):

1

## Kinematic Equations

###
v= v0 + at

x= v0t + 1/2at^2

v^2 = v0t^2 + 2ax

2

## Force Units

### Newton’s (N)

3

## Velocity Units

### m/s

4

## First Law of Motion

###
Inertia

Forces are balanced

5

## Second Law of Motion

###
F=ma

acceleration must occur

6

## Third Law of Motion

### every action has an equal and opposite reaction

7

## The Law of Gravitation

### Fg = Gmm / r^2

8

## Circular Motion

###
F = points toward the center

a = points toward the center

9

## Tangenital Acceleration

### a = ∆speed/∆t

10

## Centripetal Acceleration

### a = v^2/r

11

## Torque

### τ = rFsinθ

12

## Frequency

###
f = 1/T

units (1/s or Hz)

13

## Torque Equilibrium

###
static: τnet = 0 and Fnet = 0

translational: Fnet = 0

rotational: τnet = 0

14

## Bernoulli's Equation

### constant = P + 1/2pv^2 + pgh

15

## Archimede's Principle

### Buoyant Force = pgV

16

## Pascal's Principle

###
conservation of pressure

F1/A1 = F2/A2

17

## Coulomb's Law

### F=kqq/r^2

18

## Ohm's Law

### V=IR

19

## Current

###
I=Q/∆t

unit: Amps

20

## Potential Difference (Voltage)

###
∆V = W/q = kQ/r or V=Ed

unit: J/c

21

## Capacitance

### C=Q/V

22

## Energy in Capacitors

### U = 1/2QV = 1/2CV^2 = 1/2(Q^2/C)

23

## Electric Potential Energy

### U = q∆V = qEd = kQq/r

24

## Electric Field

###
E=F/q = kQ/r^2

units: N/C or V/m

25

## Refraction

### n=c/v

26

## Power

###
P=w/t

unit: J/s

27

## Pressure

### P=F/A

28

## Ramp Forces

###
FN=mgcosø

downward force=mgsinø

Fnet=downward force-FN

29

## Continuity Equation

### A1V1=A2V2

30

## Falling Question Equations

###
PE=KE

mgh=1/2mv^2

31

## Energy produced from atoms

### E=mc^2

32

## Centripetal Force

### F = mv^2/r

33

## First Law of Thermodynamics

### ∆U = Q - W

34

## Static Pressure

### P = pgz

35

## Absolute Pressure

### P = P0 + pgz

36

## Gauge Pressure

### Pg = P - Patm

37

## Electric Dipole

### p = qd

38

## Resistance

###
R = pL/A

units: Ohms

39

## Power from Resistors

### P = IV = V^2/R = I^2R

40

## Wave formula

### f= 1/T and v=fλ

41

## Open Pipes and Strings

###
λ = 2L/n --> use this to find L

f = nv/2L

42

## Closed Pipes

###
λ = 4L/n

f = nv/4L

43

## Intensity

###
I = P/A

units: W/m^2

44

## Sound Level

###
10log (I/Io)

unit: dB

45

## Doppler Effect

### f' = f (v ± vD)/ (v ± vS)

46

## Speed of Light (c)

### 3 X 10^8 m/s

47

## Diffraction

### asinø = nλ

48

## Optics Equation

### 1/o + 1/i = 1/f = 2/r

49

## Convex Mirror

### only produces virtual upright images

50

## Concave

### object inside focal length is behind, enlarged, and virtual

51

## Converging Lenses

###
object beyond = real and inverted

object inside = virtual, upright, and enlarged

object at focal point = no image

52

## Magnification

### m = -i/o

53

## Photoelectric Effect

###
E = hf = hc/λ

K = hf - W

54

## Half Life

### n = ne^-λt

55

## log trick

### log (n X 10^m) = m + 0.n

56

## FINER Method

### feasible, interesting, novel, ethical, relevant

57

## Hill's criteria

### only temporality is necessary

58