All the formulas of force in the first volume of ninth grade physics

All the formulas of force in the first volume of ninth grade physics

Isn't it a whole book
Deformation of remark formula of physical quantity (unit) formula
Speed V (M / s) v = s: distance / T: time
Gravity g (n) g = mg m: mass
g: 8 N / kg or 10 N / kg
Density ρ (kg / m3) ρ = m / V
m: Quality
5: Volume
The direction of resultant force F (n) is the same: F = F1 + F2
Opposite direction: F = F1-F2, when the direction is opposite, F1 > F2
Buoyancy f floating (n) f floating = g object - G view g view: gravity of object in liquid
Buoyancy f floating (n) f floating = g object
This formula is only applicable to floating or floating objects
Buoyancy f floating (n) f floating = g row = m row g = ρ liquid GV row
Row G: the gravity that displaces the liquid
M row: the mass of liquid in row
ρ liquid: density of liquid
V-row: volume of liquid discharged (i.e. volume immersed in liquid)
Balance condition of lever f1l1 = f2l2 F1: power L1: power arm
F2: resistance L2: resistance arm
Fixed pulley f = g
S = H F: the tension on the free end of the rope
G object: the gravity of an object
S: The distance that the free end of the rope moves
h: The distance an object rises
Moving pulley f = (g object + G wheel) / 2
S = 2 h g object: the gravity of the object
Wheel G: gravity of moving pulley
Pulley block f = (g object + G wheel)
S = N H N: the number of segments of the rope passing through the movable pulley
Mechanical work w (J) w = FS
F: Strength
s: The distance moved in the direction of the force
Useful work W has = g matter H
Total work w total w total = FS when the pulley block is placed vertically
Mechanical efficiency η = Wye / wtotal × 100%
Power P (W) P = w / T
W: Merit
t: Time
Pressure P (PA) P = f / S
F: Pressure
S: Stress area
Liquid pressure P (PA) P = ρ GH
ρ: Density of liquid
h: Depth (vertical distance from the liquid surface to the desired point)
Heat Q (J) q = cm △ t
c: Specific heat capacity of matter
m: Quality
Δ T: change value of temperature
Fuel emission
Q (J) q = MQ M: mass
q: Calorific value
Electromagnetic wave velocity and wave propagation
The relationship between length and frequency C = λ ν C: wave velocity (the wave velocity of electromagnetic wave is constant, equal to 3 × 108m / s)
λ: Wavelength V: frequency
Some of them