FSMQ formulas Flashcards

0
Q

What is the formula for finding acceleration? (When under constant acceleration)

A

a = (v-u)/t

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1
Q

What is the formula for finding displacement? (When under constant acceleration)

A

s = 1/2 (u+v)xt

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2
Q

What is the formula to find displacement when the final velocity is unknown? (Under constant acceleration)

A

s = ut + 1/2(at)^2

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3
Q

How do you find velocity^2 when the time is unknown? (Under constant acceleration)

A

v^2 = u^2 + 2as

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4
Q

What are the 2 key formulas to find variable acceleration?

A

v = ds/dt

And

a = dv/dt

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5
Q

How do you find the area of any triangle?

A

1/2ab x SinC

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6
Q

What is the Cos rule to find a side in any triangle?

A

a^2 = b^2 + c^2 - 2bc x CosA

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7
Q

What is the Cos rule for finding an angle in any triangle?

A

CosA = (b^2 + c^2 - a^2)/2bc

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8
Q

What is the Sin rule to find a side in any triangle?

A

a/SinA = b/SinB = c/Sin C

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9
Q

What is the Sin rule to find an angle in any triangle?

A

SinA/a = SinB/b = SinC/c

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10
Q

What are the the rules for Sin, Cos and Tan in right-angled triangles? SOHCAHTOA

A

Sin = opposite/hypotenuse

Cos = adjacent/hypotenuse

Tan = opposite/adjacent

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11
Q

What is the formula for binomial expansion?

A

nCr (x)^r (y)^n-r

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12
Q

What is the binomial distribution formula?

A

X~B (n,p)

n = number of trials 
p = probability of success
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13
Q

What is the formula for the gradient of a line?

A

m = (Y-Y1)/X-X1)

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14
Q

What is the formula for the gradient of a curve?

A

Dy/Dx

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15
Q

What is the rule for integrating x^n where n is a positive integer?

A

(x^n+1 / n+1) + c

16
Q

How do you tell if an intergral is definite or indefinite?

A

Indefinite intergrals are finished with ā€œ+cā€

Definite intergrals have values before the intergration symbol

17
Q

What is the formula for finding displacement from velocity?

A

s = (intergrate)v dt

18
Q

What is the formula for finding velocity from acceleration?

A

v = (intergrate)a dt

19
Q

What is the value used for acceleration caused by gravity?

A

g = 9.8 ms^-2

Use this value unless the question states otherwise.

20
Q

How is de-acceleration shown?

A

The acceleration has a negative value.