Unit 1: Physics Algebra and Graphing Review

Algebra Expressed through Variables

100

E = mc² ,  Solve for "m"

E/c² = m

200

F = ma , Solve for "m"

F/a = m

300

F = (Gmw)/d² , Solve for "m"

(Fd²)/(Gw) = m

400

V_f = V_o + a(t) , Solve for "a"

(V_f - V_o)/t = a

500

V_f² = V_o² + 2a(x) , Solve for "V_o"

Sqr Root (V_f² - 2a(x)) = V_o

Algebra - Solve for "X"

100

3x + 5 = -1

x = -2

200

3x - 10 = 11

x = 7

300

16 - 2x = 5x + 9

x = 1

400

-4(-3x - 8) = 10x +20

x = -6

500

(2x + 3)/4 = (x + 7)/ 3

x = 9.5

Units/Conversions

100

This is the unit used to measure distance (metric)

Meters (m)

200

This is the unit used to measure time (Metric)

Seconds (s)

300

This is the prefix used to denote 1,000 of a "base unit"

Kilo - 

400

2,000. g = ? Kg

2.0 Kg

500

543 Km = ? cm

54,300,000 cm - or - 5.43 x 10⁷ cm

Graphing

100

This is the axis you find the dependent variable

y - axis

200

This is the axis you find the independent variable

x - axis

300

This is how you determine which variable is the dependent variable and which is the independent variable when making a graph

Dependent is the variable "measured" or changed by the independent variable

Independent is the variable you "control"

400

This is the description for a "Line of Best Fit"

Line of curve that best fits the pattern of your data points.  (Average)

500

This is what makes up the "Slope" of the graph

What is "rise over run". y/x

Linear Equation

100

This is the equation for the Linear Equation

y = mx + b

200

This is the definition of "m" in the Linear Equation

m = slope

300

This is the definition of "b" in the Linear equation

Y - intercept

400

This is the slope with points at (2, 3) and (5, 15)

m = 4

500

This is the Y - Intercept with an equation y = 3x + b, and a single point at (3, 7)

b = -2