##### Symbols and Equations

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created 7 years ago by Annabelle
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updated 7 years ago by Annabelle
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physics, science
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1

m

mass
measure of the amount of stuff/resistance to change in motion

unit of measure = kilograms (kg)

a = F / m
mass = Force / acceleration

2

t

time

unit of measure = seconds (s)

3

F

Force

Force = a push or a pull

unit of measure = Newtons (N)

F = ma
Force = Mass * Acceleration

4

X

Position

unit of measure = meters (m)

5

ΔX

change in postion

ΔX = vt
Change in position = velocity * Time
when a = 0
when a varies use average velocity

6

v

velocity

v = ΔX/t
velocity = change in position / time

7

∑F

Net force

Sum of all forces

8

a

acceleration

a = F / m
acceleration = Force / mass

a = S / t
acceleration = Speed / time

a = Δv / t
acceleration = change in velocity / time

9

g

acceleration of gravity

g = 10 m/s^2

10

I

Impulse
= change in momentum Δp

I = Ft
Impulse = force*time

11

E

Energy

12

W

Work
Change in energy ΔE

W = Fd
Work = force * distance = change in energy

Unit of measure = (J) Joule

J = Nm
joule = Newton*meter

13

PE

Potential Energy

Mechanical Energy

PE = mgh

potencial energy = mass * gravity * height

14

KE

Kinetic Energy

Mechanical Energy in motion

KE = .5mv^2

kinetic energy = .5 * mass * velocity^2

15

P

Power

P = W/t
Power = Work/time

unit of measure = watt (w)

w = J/s
watt = joule/seconds

16

p

momentum

p = mv
momentum = mass * velocity

17

s

displacement

18

(N)

Newton

Unit of measure of Force

19

(J)

Joule

unit of measure of Work

20

(m)

meter

21

(kg)

kilogram

unit of measure of mass

22

(s)

seconds

unit of measure of time

23

(w)

watt

unit of measure for Power

24

Name the equation for distance

ΔX = vt +.5at^2

change in position = (initial velocity * time)+ (.5 * acceleration * time^2

25

Name the equation for momentum

p = mv

momentum = mass * velocity

26

Name the equation for mass

a = F / m

mass = Force / acceleration

27

Name the equation for Force

F = ma

Force = mass * acceleration

28

Name the equation for change in postion

ΔX = vt

Change in position = velocity * Time
when a = 0
when a varies use average velocity

29

Name the equation for acceleration

a = F / m
acceleration = Force / mass

a = S / t
acceleration = Speed / time

a = Δv / t
acceleration = change in velocity / time

30

Name the equation for velocity

v = ΔX/t
velocity = change in position / time

31

Name the equation for momentum

p = mv

momentum = mass * velocity

32

Name the equation for Impulse

I = Ft

Impulse = force*time

33

Name the equation for Kinetic Energy

KE = .5mv^2

kinetic energy = .5 * mass * velocity^2

34

Name the equation for Work

W = Fd
Work = force * distance = change in energy

or

J = Nm
joule = Newton*meter

35

Name the equation for momentum

p = mv

momentum = mass * velocity

36

Name the equation for potential energy

PE = mgh

mass*gravity*height

37

Name the equation for Power

P = W/t
Power = Work/time

w = J/s
watt = joule/seconds