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20 Cards in this Set
- Front
- Back
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What is the relationship between acceleration and change in velocity? |
acceleration (m/s2) = change in velocity ÷ time |
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What is the relationship between weight, mass and gravity? |
weight (kg) = mass x gravity w = m x g |
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What is the relationship between force, mass and acceleration? |
Force (N) = mass x acceleration |
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What is the relationship between momentum, mass and velocity? |
momentum = mass x velocity |
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What is the relationship between density, mass and volume? |
density = mass ÷ volume |
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What is the relationship between energy transferred and efficiency? |
efficiency = (useful energy output from the system ÷ total energy output from the system) x 100% |
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What is the relationship between force, distance and work? |
work done = force x distance moved in direction of force |
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What is the relationship between energy transferred and work done? |
energy transferred = work done |
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What is the relationship between kinetic energy, mass and speed? |
kinetic energy = 1/2 x mass x speed2 |
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What is the relationship between gravitational potential energy (gpe), mass, gravity and height? |
change in gravitational potential energy = mass x gravity x change in height |
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What is the relationship between mass, weight and gravitational field strength? |
weight = mass x gravitational field strength |
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What is the relationship between an applied force, the area over which it acts and the resulting pressure? |
pressure = force ÷ area |
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What is the relationship between the moment of a force and its distance from the pivot? |
moment = force x perpendicular distance from pivot |
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What are the relationships between charge, current, voltage, resistance and electrical power?
*hint: there are three* |
charge = current x time
voltage = current x resistance
electrical power = voltage x current |
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What is the relationship between wave speed, frequency and wavelength? |
wave speed = frequency x wavelength |
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What is the relationship between the power put into a transformer and the power it produces? |
input power = output power |
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What is the relationship between voltage, power and the turns ratio for a transformer? |
input (primary) voltage primary turns --------------------------------------- = ------------------------ output (secondary voltage) secondary turns
Vp Np ----- = ----- Vs Ns |
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What is the relationship between the refractive index, the angle of incidence and the angle of refraction? |
sin i n = -------- sin r |
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What is the relationship between refractive index and critical angle? |
1 sin c = --- n |
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What is the relationship for pressure difference? |
pressure difference = height x density x gravity
p = hρg |
