Physics Revision Flashcards
1
Q
Sin37
A
3/5
2
Q
Sin53
A
4/5
3
Q
π radian
A
180
4
Q
1 radian
A
180/π
5
Q
1 degree
A
π/180
6
Q
Rule for signs of T-Ratios
A
ASTC rule
7
Q
Sin(90° or 270° +- θ)
A
Cosθ
8
Q
Sin(180° or 360° +- θ)
A
Sinθ
9
Q
Sinπ, Sin2π, Sin3π………
A
= 0
10
Q
Cosπ, Cos3π, Cos5π…..
A
= -1
11
Q
Cos2π, Cos4π, Cos6π……
A
= +1
12
Q
Sin(A + B)
A
SinA CosB + SinB CosA
13
Q
Sin(A - B)
A
SinA CosB - SinB CosA
14
Q
Cos(A + B)
A
CosA CosB + SinA SinB
15
Q
Cos(A - B)
A
CosA CosB - SinA SinB
16
Q
Sin(2A)
A
2 SinA CosA
17
Q
Cos(2A)
A
Cos^2A - Sin^2A
18
Q
Formula of Straight Line
A
y = mx + c
19
Q
m
A
Slope of Straight Line
= Tanθ
The tangent from the angle made by the straight line with the positive X-Axis
20
Q
c
A
Y Intercept
Y-Coordinate where the straight line intercepts Y-Axis
21
Q
Parabola
A
Shape of Graph when corresponding to Quadratic Equations
22
Q
Formula
A
y = ax^2 + bx + c
23
Q
Parabola Up
A
y = ax^2
24
Q
Parabola Down
A
y = -ax^2
25
Parabola Right
y^2 = ax
26
Parabola Left
y^2 =-ax
27
Hyperbola
y = c/x^n
c is any constant
n > 0
28
Eclipse
x^2/a^2 = y^2/b^2
29
Circle
x^2 + y^2 = a^2
30
Binomial Expansion
(1 + x)^2 = 1 + nx + n(n-1)x^2/2! + n(n-1)(n-2)x^3/3!
31
remove a^2 from (a + b)^2
a^2(1 + b/a)^2
