all formulas of p4 phy

Question 1

What is the formula for angular velocity?

Answer 1

ω = θ / t

Question 2

What is the relationship between linear and angular velocity?

Answer 2

v = rω

Question 3

What is the formula for linear and angular acceleration?

Answer 3

a = rα

Question 4

What is the formula for orbital angular velocity?

Answer 4

ω = 2π / t

Question 5

What is the formula for centripetal acceleration?

Answer 5

a = v² / r = rω²

Question 6

What is the formula for centripetal force?

Answer 6

Fc = mv² / r = mrω²

Question 7

What is the formula for gravitational field strength on the surface of a planet?

Answer 7

g = F / m

Question 8

What is the formula for gravitational field strength at a distance from the surface of a planet?

Answer 8

g = GM / r²

Question 9

What is the formula for orbital speed?

Answer 9

v = √(GM / r)

Question 10

What is the formula for escape velocity?

Answer 10

v = √(2GM / r) = √2gr

Question 11

What is the formula to convert Celsius to Kelvin?

Answer 11

T(K) = T(°C) + 273

Question 12

What is the formula for specific heat capacity?

Answer 12

c = Q / (mΔT)

Question 13

What is the formula for R.M.S current or voltage?

Answer 13

Xrms = X₀ / √2

Question 14

What is the formula for power dissipated in an AC circuit?

Answer 14

P = Irms × Vrms = ½ I₀V₀

Question 15

What is Einstein’s energy-mass equivalence?

Answer 15

E = mc² = hf = pc

Question 16

What is the photoelectric effect equation?

Answer 16

hf = ½mv² + hf₀

Question 17

What is the formula for De Broglie wavelength?

Answer 17

λ = h / p = h / mv

Question 18

What is the formula for photon energy transition?

Answer 18

hf = E₂ - E₁

Question 19

What is the formula for binding energy per nucleon?

Answer 19

B.E. / A = Δmc² / A

Question 20

What is the formula for activity?

Answer 20

A = ΔN / Δt = λN

Question 21

What is the wave equation?

Answer 21

v = fλ

Question 22

What is the formula for acoustic impedance?

Answer 22

Z = ρc

Question 23

What is the formula for intensity through a medium?

Answer 23

I = I₀e⁻(μx)

Question 24

What is the formula for intensity in astronomy?

Answer 24

I = Energy / (Area × Time) = Power / Area

Question 25

What is luminosity?

Answer 25

Total power emitted by a star

Question 26

What is the formula for flux intensity?

Answer 26

F = L / 4πd²

Question 27

What is Wein’s Displacement Law?

Answer 27

λmax ∝ 1 / T

Question 28

What is Hubble’s Law?

Answer 28

v = H₀d

Question 29

What is the formula for age of the universe?

Answer 29

T = 1 / H₀

Question 30

What is the formula for Electric field strength?

Answer 30

E = F/q = ΔV/Δd = Q/(4πε₀r²)

Question 31

What is the formula for Capacitance?

Answer 31

C = Q / V

Question 32

What is the formula for energy stored in a capacitor?

Answer 32

Energy = ½CV² = ½QV

Question 33

What is the formula for Time constant of a capacitor?

Answer 33

τ = RC

Question 34

What is the exponential formula for current

Answer 34

charge

Question 35

What is the formula for the Force on a current carrying conductor?

Answer 35

F = BILsinθ

Question 36

What is the formula for the Force on a charge moving in a magnetic field?

Answer 36

F = Bqvsinθ

Question 37

What is the formula for Magnetic flux?

Answer 37

Φ = B⋅A = BAcosθ

Question 38

What is the formula for Faraday’s law and Lenz’s Law?

Answer 38

E.m.f = −NΔΦ/Δt