(SOME) FORMULAS
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| PART 1 | SI BASIC UNITS
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| Length | Metre (m)
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| Mass | Kilogram (kg)
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| Time | Second (s)
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| Electric Current | Ampere (A)
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| Amount of Substance | Mole (mol)
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| Temperature (absolute) | Kelvin (K)
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| Luminous intensity | Candela (cd)
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| PART 2 | SI DERIVED UNITS
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| Area | Square Metre (m^2)
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| Volume | Cubic Metre (m^3)
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| Density | Kilogram per Cubic Metre (kg m^(-3))
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| Velocity | Metre per Second (m s^(-1))
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| Force | Newton (N) or (kg m s^(-2))
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| Energy | Joule (J) or (N m)
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| Power | Watt (W) or (J s^(-1))
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| Charge | Coulomb (C) or (A s)
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| Potential difference | Volt (V) or (J C^(-1))
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| Electric field | Volt per Metre (V m^1)
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| Electric resistance | Ohm (Ω) or (V A^(-1))
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| Capacitance | Farad (F) or (C V^(-1))
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| Magnetic field | Tesla (T) or (Wb m^(-2))
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| Illumination | Lux (lx) or (lm m^(-2))
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| PART 3 | PREFIXES
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| Giga- | G (10^9)
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| Mega- | M (10^6)
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| Kilo- | k (10^3)
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| Centi- | c (10^(-2))
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| Milli- | m (10^(-3))
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| Micro- | μ (10^(-6))
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| Nano- | n (10^(-9))
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| PART 4 | PHYSICAL CONSTANTS
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| Acceleration due to Gravity (on Earth) | g = [9.8 m s^(-2)] or [9.8 N kg-1]
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| Equatorial radius of the Earth | 6.4 × 10^6 m
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| Speed of Light (in vacuum) | c = 3.00 × 10^8 m s^(-1)
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| Charge on Electron | e = 1.60 × 10^(-19) C
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| Proton mass | 1.67 × 10^(−27) kg
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| Neutron mass | 1.67 × 10^(−27) kg
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| Electron mass | 9.11 × 10^(−31) kg
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| Avogadro's number | 6.02 × 10^(23) mol^(−1)
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| Planck's constant | h = 6.626 × 10^(-34) J s OR 4.136 × 10^(-15) eV s
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| Gravitational constant | G = 6.67 × 10^(-11) N m^2 kg^(-2)
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| Speed of Sound (dry air) | 640 m s^(-1) (20 oC)
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| Mass of the Earth | 6.0 × 10^24 kg
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| Mass of the Sun | 2.0 × 10^30 kg
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| Mass of the Moon | 7.3 × 10^22 kg
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| PART 5 | GREEK LETTERS
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| α | Alpha (alpha particle radiation)
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| β | Beta (beta particle radiation)
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| γ | Gamma (gamma radiation)
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| Δ (upper case) | Delta ("a change in" a quantity)
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| ε | Epsilon (electromotive force (EMF); electrical permittivity)
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| Φ | Phi (magnetic flux)
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| λ | Lambda (wavelength)
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| μ | Mu (micro; magnetic permeability)
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| ν | Nu (frequency)
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| π | Pi (used in circular functions: the ratio of a circle's circumference to its diameter)
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| θ | Theta (angles)
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| ρ | Rho (resistivity)
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| σ | Sigma (stress)
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| τ | Tau (torque)
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| ω (lower case) | Omega (angular velocity)
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| Ω (upper case) | Omega (electrical resistance)
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Created by:
Doctor Moreau
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